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Home Suspected Osteomyelitis, Septic Arthritis, or Soft Tissue Infection (Excluding Spine and Diabetic Foot)
Variants
Scenario Scenario ID Procedure Adult RRL Peds RRL Appropriateness Category
Soft tissue infection suspected, upper arm, initial imaging 3195468
Radiography humerus
<0.1 mSv
☢
Usually appropriate
US upper arm
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI upper arm without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI upper arm without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
3-phase bone scan arm
1-10 mSv
☢☢☢
Usually not appropriate
CT upper arm with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
CT upper arm without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
CT upper arm without IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Septic arthritis suspected, wrist, initial imaging 3195442
Radiography wrist
<0.1 mSv
☢
Usually appropriate
US wrist
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT wrist with IV contrast
<0.1 mSv
☢
Usually not appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
CT wrist without IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan wrist
1-10 mSv
☢☢☢
Usually not appropriate
Septic arthritis suspected, elbow, initial imaging 3195456
Radiography elbow
<0.1 mSv
☢
Usually appropriate
US elbow
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan elbow
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, lower leg, initial imaging 3195473
Radiography tibia and fibula
<0.1 mSv
☢ 		<0.03 mSv [ped]
☢ 		Usually appropriate
US lower leg
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI lower leg without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI lower leg without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT lower leg with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
CT lower leg without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
CT lower leg without IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan leg
1-10 mSv
☢☢☢
Usually not appropriate
Osteomyelitis suspected, forearm, initial imaging 3195447
Radiography radius and ulna
<0.1 mSv
☢
Usually appropriate
US forearm
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI forearm without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI forearm without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT forearm with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
CT forearm without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
CT forearm without IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan forearm
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, ankle, initial imaging 3195461
Radiography ankle
<0.1 mSv
☢ 		<0.03 mSv [ped]
☢ 		Usually appropriate
US ankle
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan ankle
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, foot, initial imaging 3195475
Radiography foot
<0.1 mSv
☢ 		<0.03 mSv [ped]
☢ 		Usually appropriate
US foot
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI foot without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI foot without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT foot with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
CT foot without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
CT foot without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan foot
1-10 mSv
☢☢☢
Usually not appropriate
Osteomyelitis suspected, hip, initial imaging 3195449
Radiography hip
1-10 mSv
☢☢☢
Usually appropriate
US hip
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
3-phase bone scan hip
1-10 mSv
☢☢☢
Usually not appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, hand, initial imaging 3195466
Radiography hand
<0.1 mSv
☢
Usually appropriate
US hand
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI hand without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI hand without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT hand with IV contrast
<0.1 mSv
☢
Usually not appropriate
CT hand without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
CT hand without IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan hand
1-10 mSv
☢☢☢
Usually not appropriate
Osteomyelitis suspected, tibia fibula, initial imaging 3195454
Radiography tibia and fibula
<0.1 mSv
☢ 		<0.03 mSv [ped]
☢ 		Usually appropriate
US lower leg
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI lower leg without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI lower leg without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT lower leg with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
CT lower leg without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
CT lower leg without IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan leg
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, forearm, initial imaging 3195465
Radiography radius and ulna
<0.1 mSv
☢
Usually appropriate
US forearm
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI forearm without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI forearm without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT forearm with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
CT forearm without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
CT forearm without IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan forearm
1-10 mSv
☢☢☢
Usually not appropriate
Osteomyelitis suspected, shoulder, initial imaging 3195453
Radiography shoulder
<0.1 mSv
☢
Usually appropriate
US shoulder
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
3-phase bone scan shoulder
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, knee, initial imaging 3195470
Radiography knee
<0.1 mSv
☢ 		<0.03 mSv [ped]
☢ 		Usually appropriate
US knee
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan knee
1-10 mSv
☢☢☢
Usually not appropriate
Osteomyelitis suspected, chest, initial imaging 3195444
Radiography chest
<0.1 mSv
☢ 		<0.03 mSv [ped]
☢ 		Usually appropriate
US chest
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI chest without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI chest without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
3-phase bone scan chest
1-10 mSv
☢☢☢
Usually not appropriate
CT chest with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT chest without and with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT chest without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Septic arthritis suspected, knee, initial imaging 3195458
Radiography knee
<0.1 mSv
☢ 		<0.03 mSv [ped]
☢ 		Usually appropriate
US knee
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan knee
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, shoulder, initial imaging 3195472
Radiography shoulder
<0.1 mSv
☢
Usually appropriate
US shoulder
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
3-phase bone scan shoulder
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Osteomyelitis suspected, femur, initial imaging 3195446
Radiography femur
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
US thigh
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI thigh without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI thigh without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT thigh with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
CT thigh without IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan femur
1-10 mSv
☢☢☢
Usually not appropriate
CT thigh without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, elbow, initial imaging 3195463
Radiography elbow
<0.1 mSv
☢
Usually appropriate
US elbow
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan elbow
1-10 mSv
☢☢☢
Usually not appropriate
Osteomyelitis suspected, knee, initial imaging 3195451
Radiography knee
<0.1 mSv
☢ 		<0.03 mSv [ped]
☢ 		Usually appropriate
US knee
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan knee
1-10 mSv
☢☢☢
Usually not appropriate
Osteomyelitis suspected, hand, initial imaging 3195448
Radiography hand
<0.1 mSv
☢
Usually appropriate
US hand
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI hand without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI hand without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT hand with IV contrast
<0.1 mSv
☢
Usually not appropriate
CT hand without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
CT hand without IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan hand
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, chest, initial imaging 3195462
Radiography chest
<0.1 mSv
☢ 		<0.03 mSv [ped]
☢ 		Usually appropriate
US chest
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI chest without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI chest without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
3-phase bone scan chest
1-10 mSv
☢☢☢
Usually not appropriate
CT chest with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT chest without and with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT chest without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Soft tissue infection suspected, hip, initial imaging 3195467
Radiography hip
1-10 mSv
☢☢☢
Usually appropriate
US hip
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
3-phase bone scan hip
1-10 mSv
☢☢☢
Usually not appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, wrist, initial imaging 3195441
Radiography wrist
<0.1 mSv
☢
Usually appropriate
US wrist
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT wrist with IV contrast
<0.1 mSv
☢
Usually not appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
CT wrist without IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan wrist
1-10 mSv
☢☢☢
Usually not appropriate
Septic arthritis suspected, ankle, initial imaging 3195455
Radiography ankle
<0.1 mSv
☢ 		<0.03 mSv [ped]
☢ 		Usually appropriate
US ankle
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan ankle
1-10 mSv
☢☢☢
Usually not appropriate
Osteomyelitis suspected, ankle, initial imaging 3195443
Radiography ankle
<0.1 mSv
☢ 		<0.03 mSv [ped]
☢ 		Usually appropriate
US ankle
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan ankle
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, abdomen, initial imaging 3195460
Radiography abdomen
0.1-1mSv
☢☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
US abdomen
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI abdomen without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI abdomen without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
3-phase bone scan abdomen
1-10 mSv
☢☢☢
Usually not appropriate
CT abdomen with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT abdomen without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT abdomen without and with IV contrast
10-30 mSv
☢☢☢☢ 		10-30 mSv [ped]
☢☢☢☢☢ 		Usually not appropriate
Osteomyelitis suspected, foot, initial imaging 3195474
Radiography foot
<0.1 mSv
☢ 		<0.03 mSv [ped]
☢ 		Usually appropriate
US foot
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI foot without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI foot without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT foot with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
CT foot without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
CT foot without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan foot
1-10 mSv
☢☢☢
Usually not appropriate
Osteomyelitis suspected, elbow, initial imaging 3195445
Radiography elbow
<0.1 mSv
☢
Usually appropriate
US elbow
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan elbow
1-10 mSv
☢☢☢
Usually not appropriate
Septic arthritis suspected, shoulder, initial imaging 3195459
Radiography shoulder
<0.1 mSv
☢
Usually appropriate
US shoulder
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
3-phase bone scan shoulder
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Osteomyelitis suspected, wrist, initial imaging 3195476
Radiography wrist
<0.1 mSv
☢
Usually appropriate
US wrist
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT wrist with IV contrast
<0.1 mSv
☢
Usually not appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
CT wrist without IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan wrist
1-10 mSv
☢☢☢
Usually not appropriate
Osteomyelitis suspected, humerus, initial imaging 3195450
Radiography humerus
<0.1 mSv
☢
Usually appropriate
US upper arm
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI upper arm without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI upper arm without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
3-phase bone scan arm
1-10 mSv
☢☢☢
Usually not appropriate
CT upper arm with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
CT upper arm without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
CT upper arm without IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, thigh, initial imaging 3195464
Radiography femur
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
US thigh
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI thigh without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI thigh without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT thigh with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
CT thigh without IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan femur
1-10 mSv
☢☢☢
Usually not appropriate
CT thigh without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Osteomyelitis suspected, pelvis, initial imaging 3195452
Radiography pelvis
0.1-1mSv
☢☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
US pelvis
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI pelvis without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
3-phase bone scan pelvis
1-10 mSv
☢☢☢
Usually not appropriate
CT pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Soft tissue infection suspected, neck, initial imaging 3195469
Radiography neck
0.1-1mSv
☢☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
US neck
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI neck without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI neck without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
3-phase bone scan neck
1-10 mSv
☢☢☢
Usually not appropriate
CT neck with IV contrast
1-10 mSv
☢☢☢ 		0.3-3 mSv [ped]
☢☢☢ 		Usually not appropriate
CT neck without and with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT neck without IV contrast
1-10 mSv
☢☢☢ 		0.3-3 mSv [ped]
☢☢☢ 		Usually not appropriate
Septic arthritis suspected, hip, initial imaging 3195457
Radiography hip
1-10 mSv
☢☢☢
Usually appropriate
US hip
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
3-phase bone scan hip
1-10 mSv
☢☢☢
Usually not appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, pelvis, initial imaging 3195471
Radiography pelvis
0.1-1mSv
☢☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
US pelvis
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI pelvis without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
3-phase bone scan pelvis
1-10 mSv
☢☢☢
Usually not appropriate
CT pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Scenario Scenario ID Procedure Adult RRL Peds RRL Appropriateness Category
Septic arthritis suspected, shoulder, radiography normal, next imaging study 3195543
US shoulder
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration shoulder

Varies
Varies 		Usually appropriate
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan shoulder
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, ankle, radiography findings suggest joint effusion, next imaging study 3195486
US ankle
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration ankle

Varies
Varies 		Usually appropriate
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan ankle
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, elbow, radiography findings suggest soft tissue swelling, next imaging study 3195517
US elbow
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration elbow

Varies
Varies 		Usually appropriate
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
May be appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan elbow
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, abdomen, radiography normal, next imaging study 3195498
US abdomen
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration abdomen

Varies
Varies 		Usually appropriate
MRI abdomen without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI abdomen without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT abdomen with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT abdomen without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
3-phase bone scan abdomen
1-10 mSv
☢☢☢
Usually not appropriate
CT abdomen without and with IV contrast
10-30 mSv
☢☢☢☢ 		10-30 mSv [ped]
☢☢☢☢☢ 		Usually not appropriate
Soft tissue infection suspected, abdomen, radiography findings suggest joint effusion, next imaging study 3195484
US abdomen
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration abdomen

Varies
Varies 		Usually appropriate
MRI abdomen without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI abdomen without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT abdomen with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT abdomen without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
3-phase bone scan abdomen
1-10 mSv
☢☢☢
Usually not appropriate
CT abdomen without and with IV contrast
10-30 mSv
☢☢☢☢ 		10-30 mSv [ped]
☢☢☢☢☢ 		Usually not appropriate
Soft tissue infection suspected, lower leg, radiography normal, next imaging study 3195512
US lower leg
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration leg

Varies
Varies 		Usually appropriate
MRI lower leg without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI lower leg without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT lower leg with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT lower leg without IV contrast
0.1-1mSv
☢☢
May be appropriate
CT lower leg without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan leg
1-10 mSv
☢☢☢
Usually not appropriate
Septic arthritis suspected, elbow, radiography findings suggest joint effusion, next imaging study 3195529
US elbow
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration elbow

Varies
Varies 		Usually appropriate
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
May be appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan elbow
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, upper arm, radiography findings suggest joint effusion, next imaging study 3195493
US upper arm
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration arm

Varies
Varies 		Usually appropriate
MRI upper arm without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI upper arm without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT upper arm with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT upper arm without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan arm
1-10 mSv
☢☢☢
Usually not appropriate
CT upper arm without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, wrist, radiography normal, next imaging study 3195479
US wrist
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration wrist

Varies
Varies 		Usually appropriate
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT wrist with IV contrast
<0.1 mSv
☢
Usually appropriate
CT wrist without IV contrast
<0.1 mSv
☢
May be appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan wrist
1-10 mSv
☢☢☢
Usually not appropriate
Septic arthritis suspected, shoulder, radiography findings suggest soft tissue swelling, next imaging study 3195536
US shoulder
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration shoulder

Varies
Varies 		Usually appropriate
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan shoulder
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, knee, radiography findings suggest soft tissue swelling, next imaging study 3195524
US knee
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration knee

Varies
Varies 		Usually appropriate
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan knee
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, pelvis, radiography normal, next imaging study 3195510
US pelvis
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration pelvis

Varies
Varies 		Usually appropriate
MRI pelvis without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
3-phase bone scan pelvis
1-10 mSv
☢☢☢
Usually not appropriate
CT pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Soft tissue infection suspected, hand, radiography findings suggest joint effusion, next imaging study 3195491
US hand
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration hand

Varies
Varies 		Usually appropriate
MRI hand without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hand without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT hand with IV contrast
<0.1 mSv
☢
Usually appropriate
CT hand without IV contrast
<0.1 mSv
☢
May be appropriate
CT hand without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan hand
1-10 mSv
☢☢☢
Usually not appropriate
Septic arthritis suspected, knee, radiography findings suggest joint effusion, next imaging study 3195531
US knee
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration knee

Varies
Varies 		Usually appropriate
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan knee
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, forearm, radiography normal, next imaging study 3195505
US forearm
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration forearm

Varies
Varies 		Usually appropriate
MRI forearm without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI forearm without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT forearm with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT forearm without IV contrast
0.1-1mSv
☢☢
May be appropriate
CT forearm without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan forearm
1-10 mSv
☢☢☢
Usually not appropriate
Septic arthritis suspected, wrist, radiography normal, next imaging study 3195483
US wrist
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration wrist

Varies
Varies 		Usually appropriate
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT wrist with IV contrast
<0.1 mSv
☢
Usually appropriate
CT wrist without IV contrast
<0.1 mSv
☢
May be appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan wrist
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, shoulder, radiography findings suggest soft tissue swelling, next imaging study 3195526
US shoulder
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration shoulder

Varies
Varies 		Usually appropriate
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan shoulder
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, neck, radiography findings suggest soft tissue swelling, next imaging study 3195514
US neck
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration neck

Varies
Varies 		Usually appropriate
MRI neck without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI neck without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT neck with IV contrast
1-10 mSv
☢☢☢ 		0.3-3 mSv [ped]
☢☢☢ 		Usually appropriate
CT neck without IV contrast
1-10 mSv
☢☢☢ 		0.3-3 mSv [ped]
☢☢☢ 		May be appropriate
3-phase bone scan neck
1-10 mSv
☢☢☢
Usually not appropriate
CT neck without and with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Soft tissue infection suspected, ankle, radiography normal, next imaging study 3195500
US ankle
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration ankle

Varies
Varies 		Usually appropriate
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan ankle
1-10 mSv
☢☢☢
Usually not appropriate
Septic arthritis suspected, elbow, radiography normal, next imaging study 3195540
US elbow
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration elbow

Varies
Varies 		Usually appropriate
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
May be appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan elbow
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, chest, radiography findings suggest joint effusion, next imaging study 3195538
US chest
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration chest

Varies
Varies 		Usually appropriate
MRI chest without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI chest without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT chest with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT chest without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
3-phase bone scan chest
1-10 mSv
☢☢☢
Usually not appropriate
CT chest without and with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Septic arthritis suspected, wrist, radiography findings suggest joint effusion, next imaging study 3195481
US wrist
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration wrist

Varies
Varies 		Usually appropriate
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT wrist with IV contrast
<0.1 mSv
☢
Usually appropriate
CT wrist without IV contrast
<0.1 mSv
☢
May be appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan wrist
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, hand, radiography findings suggest soft tissue swelling, next imaging study 3195521
US hand
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration hand

Varies
Varies 		Usually appropriate
MRI hand without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hand without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT hand with IV contrast
<0.1 mSv
☢
Usually appropriate
CT hand without IV contrast
<0.1 mSv
☢
May be appropriate
CT hand without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan hand
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, knee, radiography normal, next imaging study 3195509
US knee
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration knee

Varies
Varies 		Usually appropriate
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan knee
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, pelvis, radiography findings suggest joint effusion, next imaging study 3195495
US pelvis
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration pelvis

Varies
Varies 		Usually appropriate
MRI pelvis without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
3-phase bone scan pelvis
1-10 mSv
☢☢☢
Usually not appropriate
CT pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Septic arthritis suspected, elbow, radiography findings suggest soft tissue swelling, next imaging study 3195533
US elbow
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration elbow

Varies
Varies 		Usually appropriate
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
May be appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan elbow
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, hip, radiography normal, next imaging study 3195507
US hip
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration hip

Varies
Varies 		Usually appropriate
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan hip
1-10 mSv
☢☢☢
Usually not appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, forearm, radiography findings suggest joint effusion, next imaging study 3195490
US forearm
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration forearm

Varies
Varies 		Usually appropriate
MRI forearm without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI forearm without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT forearm with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT forearm without IV contrast
0.1-1mSv
☢☢
May be appropriate
CT forearm without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan forearm
1-10 mSv
☢☢☢
Usually not appropriate
Septic arthritis suspected, ankle, radiography findings suggest joint effusion, next imaging study 3195528
US ankle
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration ankle

Varies
Varies 		Usually appropriate
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan ankle
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, thigh, radiography findings suggest joint effusion, next imaging study 3195488
US thigh
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration thigh

Varies
Varies 		Usually appropriate
MRI thigh without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI thigh without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT thigh with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT thigh without IV contrast
0.1-1mSv
☢☢
May be appropriate
3-phase bone scan femur
1-10 mSv
☢☢☢
Usually not appropriate
CT thigh without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, elbow, radiography normal, next imaging study 3195502
US elbow
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration elbow

Varies
Varies 		Usually appropriate
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
May be appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan elbow
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, foot, radiography findings suggest soft tissue swelling, next imaging study 3195519
US foot
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration foot

Varies
Varies 		Usually appropriate
MRI foot without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI foot without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT foot with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT foot without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT foot without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan foot
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, upper arm, radiography findings suggest soft tissue swelling, next imaging study 3195523
US upper arm
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration arm

Varies
Varies 		Usually appropriate
MRI upper arm without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI upper arm without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT upper arm with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT upper arm without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan arm
1-10 mSv
☢☢☢
Usually not appropriate
CT upper arm without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, hand, radiography normal, next imaging study 3195506
US hand
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration hand

Varies
Varies 		Usually appropriate
MRI hand without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hand without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT hand with IV contrast
<0.1 mSv
☢
Usually appropriate
CT hand without IV contrast
<0.1 mSv
☢
May be appropriate
CT hand without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan hand
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, lower leg, radiography findings suggest joint effusion, next imaging study 3195497
US lower leg
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration leg

Varies
Varies 		Usually appropriate
MRI lower leg without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI lower leg without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT lower leg with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT lower leg without IV contrast
0.1-1mSv
☢☢
May be appropriate
CT lower leg without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan leg
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, wrist, radiography findings suggest soft tissue swelling, next imaging study 3195480
US wrist
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration wrist

Varies
Varies 		Usually appropriate
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT wrist with IV contrast
<0.1 mSv
☢
Usually appropriate
CT wrist without IV contrast
<0.1 mSv
☢
May be appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan wrist
1-10 mSv
☢☢☢
Usually not appropriate
Septic arthritis suspected, wrist, radiography findings suggest soft tissue swelling, next imaging study 3195537
US wrist
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration wrist

Varies
Varies 		Usually appropriate
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT wrist with IV contrast
<0.1 mSv
☢
Usually appropriate
CT wrist without IV contrast
<0.1 mSv
☢
May be appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan wrist
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, thigh, radiography findings suggest soft tissue swelling, next imaging study 3195518
US thigh
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration thigh

Varies
Varies 		Usually appropriate
MRI thigh without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI thigh without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT thigh with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT thigh without IV contrast
0.1-1mSv
☢☢
May be appropriate
3-phase bone scan femur
1-10 mSv
☢☢☢
Usually not appropriate
CT thigh without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, wrist, radiography findings suggest joint effusion, next imaging study 3195478
US wrist
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration wrist

Varies
Varies 		Usually appropriate
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT wrist with IV contrast
<0.1 mSv
☢
Usually appropriate
CT wrist without IV contrast
<0.1 mSv
☢
May be appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan wrist
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, hip, radiography findings suggest joint effusion, next imaging study 3195492
US hip
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration hip

Varies
Varies 		Usually appropriate
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan hip
1-10 mSv
☢☢☢
Usually not appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Septic arthritis suspected, knee, radiography findings suggest soft tissue swelling, next imaging study 3195535
US knee
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration knee

Varies
Varies 		Usually appropriate
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan knee
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, chest, radiography findings suggest soft tissue swelling, next imaging study 3195516
US chest
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration chest

Varies
Varies 		Usually appropriate
MRI chest without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI chest without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT chest with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT chest without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
3-phase bone scan chest
1-10 mSv
☢☢☢
Usually not appropriate
CT chest without and with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Soft tissue infection suspected, elbow, radiography findings suggest joint effusion, next imaging study 3195487
US elbow
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration elbow

Varies
Varies 		Usually appropriate
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
May be appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan elbow
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, foot, radiography normal, next imaging study 3195504
US foot
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration foot

Varies
Varies 		Usually appropriate
MRI foot without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI foot without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT foot with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT foot without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT foot without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan foot
1-10 mSv
☢☢☢
Usually not appropriate
Septic arthritis suspected, hip, radiography findings suggest joint effusion, next imaging study 3195530
US hip
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration hip

Varies
Varies 		Usually appropriate
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan hip
1-10 mSv
☢☢☢
Usually not appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, shoulder, radiography normal, next imaging study 3195511
US shoulder
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration shoulder

Varies
Varies 		Usually appropriate
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan shoulder
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, neck, radiography normal, next imaging study 3195499
US neck
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration neck

Varies
Varies 		Usually appropriate
MRI neck without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI neck without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT neck with IV contrast
1-10 mSv
☢☢☢ 		0.3-3 mSv [ped]
☢☢☢ 		Usually appropriate
CT neck without IV contrast
1-10 mSv
☢☢☢ 		0.3-3 mSv [ped]
☢☢☢ 		May be appropriate
3-phase bone scan neck
1-10 mSv
☢☢☢
Usually not appropriate
CT neck without and with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Soft tissue infection suspected, neck, radiography findings suggest joint effusion, next imaging study 3195485
US neck
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration abdomen

Varies
Varies 		Usually appropriate
MRI neck without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI neck without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT neck with IV contrast
1-10 mSv
☢☢☢ 		0.3-3 mSv [ped]
☢☢☢ 		Usually appropriate
CT neck without IV contrast
1-10 mSv
☢☢☢ 		0.3-3 mSv [ped]
☢☢☢ 		May be appropriate
3-phase bone scan abdomen
1-10 mSv
☢☢☢
Usually not appropriate
CT neck without and with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Soft tissue infection suspected, pelvis, radiography findings suggest soft tissue swelling, next imaging study 3195525
US pelvis
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration pelvis

Varies
Varies 		Usually appropriate
MRI pelvis without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
3-phase bone scan pelvis
1-10 mSv
☢☢☢
Usually not appropriate
CT pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Septic arthritis suspected, knee, radiography normal, next imaging study 3195542
US knee
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration knee

Varies
Varies 		Usually appropriate
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan knee
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, thigh, radiography normal, next imaging study 3195503
US thigh
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration thigh

Varies
Varies 		Usually appropriate
MRI thigh without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI thigh without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT thigh with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT thigh without IV contrast
0.1-1mSv
☢☢
May be appropriate
3-phase bone scan femur
1-10 mSv
☢☢☢
Usually not appropriate
CT thigh without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, knee, radiography findings suggest joint effusion, next imaging study 3195494
US knee
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration knee

Varies
Varies 		Usually appropriate
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan knee
1-10 mSv
☢☢☢
Usually not appropriate
Septic arthritis suspected, hip, radiography findings suggest soft tissue swelling, next imaging study 3195534
US hip
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration hip

Varies
Varies 		Usually appropriate
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan hip
1-10 mSv
☢☢☢
Usually not appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, forearm, radiography findings suggest soft tissue swelling, next imaging study 3195520
US forearm
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration forearm

Varies
Varies 		Usually appropriate
MRI forearm without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI forearm without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT forearm with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT forearm without IV contrast
0.1-1mSv
☢☢
May be appropriate
CT forearm without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan forearm
1-10 mSv
☢☢☢
Usually not appropriate
Septic arthritis suspected, hip, radiography normal, next imaging study 3195541
US hip
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration hip

Varies
Varies 		Usually appropriate
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan hip
1-10 mSv
☢☢☢
Usually not appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, chest, radiography normal, next imaging study 3195501
US chest
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration chest

Varies
Varies 		Usually appropriate
MRI chest without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI chest without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT chest with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT chest without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
3-phase bone scan chest
1-10 mSv
☢☢☢
Usually not appropriate
CT chest without and with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Soft tissue infection suspected, foot, radiography findings suggest joint effusion, next imaging study 3195489
US foot
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration foot

Varies
Varies 		Usually appropriate
MRI foot without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI foot without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT foot with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT foot without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT foot without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan foot
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, ankle, radiography findings suggest soft tissue swelling, next imaging study 3195515
US ankle
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration ankle

Varies
Varies 		Usually appropriate
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan ankle
1-10 mSv
☢☢☢
Usually not appropriate
Septic arthritis suspected, shoulder, radiography findings suggest joint effusion, next imaging study 3195532
US shoulder
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration shoulder

Varies
Varies 		Usually appropriate
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan shoulder
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, abdomen, radiography findings suggest soft tissue swelling, next imaging study 3195513
US abdomen
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration abdomen

Varies
Varies 		Usually appropriate
MRI abdomen without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI abdomen without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT abdomen with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT abdomen without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
3-phase bone scan abdomen
1-10 mSv
☢☢☢
Usually not appropriate
CT abdomen without and with IV contrast
10-30 mSv
☢☢☢☢ 		10-30 mSv [ped]
☢☢☢☢☢ 		Usually not appropriate
Soft tissue infection suspected, shoulder, radiography findings suggest joint effusion, next imaging study 3195496
US shoulder
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration shoulder

Varies
Varies 		Usually appropriate
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan shoulder
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, lower leg, radiography findings suggest soft tissue swelling, next imaging study 3195527
US lower leg
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration leg

Varies
Varies 		Usually appropriate
MRI lower leg without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI lower leg without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT lower leg with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT lower leg without IV contrast
0.1-1mSv
☢☢
May be appropriate
CT lower leg without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan leg
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, upper arm, radiography normal, next imaging study 3195508
US upper arm
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration arm

Varies
Varies 		Usually appropriate
MRI upper arm without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI upper arm without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT upper arm with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT upper arm without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan arm
1-10 mSv
☢☢☢
Usually not appropriate
CT upper arm without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Septic arthritis suspected, ankle, radiography findings suggest soft tissue swelling, next imaging study 3195482
US ankle
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration ankle

Varies
Varies 		Usually appropriate
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan ankle
1-10 mSv
☢☢☢
Usually not appropriate
Septic arthritis suspected, ankle, radiography normal, next imaging study 3195539
US ankle
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration ankle

Varies
Varies 		Usually appropriate
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan ankle
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, hip, radiography findings suggest soft tissue swelling, next imaging study 3195522
US hip
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
Image-guided aspiration hip

Varies
Varies 		Usually appropriate
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan hip
1-10 mSv
☢☢☢
Usually not appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Scenario Scenario ID Procedure Adult RRL Peds RRL Appropriateness Category
Osteomyelitis suspected, pelvis, radiography findings suggest osteomyelitis, next imaging study 3195557
MRI pelvis without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
3-phase bone scan pelvis
1-10 mSv
☢☢☢
May be appropriate
CT pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
CT pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan pelvis
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan pelvis
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan pelvis
10-30 mSv
☢☢☢☢
May be appropriate
US pelvis
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
WBC scan pelvis
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, wrist, radiography findings suggest osteomyelitis, next imaging study 3195545
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT wrist with IV contrast
<0.1 mSv
☢
May be appropriate
CT wrist without IV contrast
<0.1 mSv
☢
May be appropriate
3-phase bone scan wrist
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
US wrist
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
WBC scan wrist
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, shoulder, radiography normal, next imaging study 3195571
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
3-phase bone scan shoulder
1-10 mSv
☢☢☢
May be appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
May be appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
US shoulder
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
WBC scan shoulder
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, forearm, radiography findings suggest osteomyelitis, next imaging study 3195552
MRI forearm without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI forearm without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT forearm with IV contrast
0.1-1mSv
☢☢
May be appropriate
CT forearm without IV contrast
0.1-1mSv
☢☢
May be appropriate
3-phase bone scan forearm
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan forearm
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan forearm
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan forearm
10-30 mSv
☢☢☢☢
May be appropriate
US forearm
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT forearm without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
WBC scan forearm
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, hand, radiography normal, next imaging study 3195566
MRI hand without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hand without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT hand with IV contrast
<0.1 mSv
☢
May be appropriate
CT hand without IV contrast
<0.1 mSv
☢
May be appropriate
3-phase bone scan hand
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan hand
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan hand
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan hand
10-30 mSv
☢☢☢☢
May be appropriate
US hand
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT hand without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
WBC scan hand
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, foot, radiography normal, next imaging study 3195564
MRI foot without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI foot without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT foot with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT foot without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan foot
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan foot
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan foot
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan foot
10-30 mSv
☢☢☢☢
May be appropriate
US foot
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT foot without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
WBC scan foot
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, ankle, radiography findings suggest osteomyelitis, next imaging study 3195547
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan ankle
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
US ankle
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
WBC scan ankle
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, tibia fibula, radiography findings suggest osteomyelitis, next imaging study 3195559
MRI lower leg without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI lower leg without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT lower leg with IV contrast
0.1-1mSv
☢☢
May be appropriate
CT lower leg without IV contrast
0.1-1mSv
☢☢
May be appropriate
3-phase bone scan leg
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan leg
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan leg
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan leg
10-30 mSv
☢☢☢☢
May be appropriate
US lower leg
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT lower leg without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
WBC scan leg
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, hip, radiography findings suggest osteomyelitis, next imaging study 3195554
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
3-phase bone scan hip
1-10 mSv
☢☢☢
May be appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
May be appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan hip
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
May be appropriate
US hip
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
WBC scan hip
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, humerus, radiography normal, next imaging study 3195568
MRI upper arm without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI upper arm without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
3-phase bone scan arm
1-10 mSv
☢☢☢
May be appropriate
CT upper arm with IV contrast
1-10 mSv
☢☢☢
May be appropriate
CT upper arm without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3 phase bone scan and WBC scan and sulfur colloid marrow scan arm
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan arm
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan arm
10-30 mSv
☢☢☢☢
May be appropriate
US upper arm
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT upper arm without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
WBC scan arm
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, elbow, radiography findings suggest osteomyelitis, next imaging study 3195549
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
May be appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
May be appropriate
3-phase bone scan elbow
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
US elbow
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
WBC scan elbow
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, femur, radiography normal, next imaging study 3195563
MRI thigh without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI thigh without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT thigh with IV contrast
0.1-1mSv
☢☢
May be appropriate
CT thigh without IV contrast
0.1-1mSv
☢☢
May be appropriate
3-phase bone scan femur
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan femur
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan femur
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan femur
10-30 mSv
☢☢☢☢
May be appropriate
US thigh
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT thigh without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
WBC scan femur
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, chest, radiography normal, next imaging study 3195561
MRI chest without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI chest without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
3-phase bone scan chest
1-10 mSv
☢☢☢
May be appropriate
CT chest with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
CT chest without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan chest
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan chest
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan chest
10-30 mSv
☢☢☢☢
May be appropriate
US chest
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT chest without and with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
WBC scan chest
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, knee, radiography findings suggest osteomyelitis, next imaging study 3195556
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan knee
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan knee
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
May be appropriate
US knee
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
WBC scan knee
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, forearm, radiography normal, next imaging study 3195565
MRI forearm without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI forearm without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT forearm with IV contrast
0.1-1mSv
☢☢
May be appropriate
CT forearm without IV contrast
0.1-1mSv
☢☢
May be appropriate
3-phase bone scan forearm
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan forearm
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan forearm
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan forearm
10-30 mSv
☢☢☢☢
May be appropriate
US forearm
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT forearm without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
WBC scan forearm
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, foot, radiography findings suggest osteomyelitis, next imaging study 3195551
MRI foot without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI foot without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT foot with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT foot without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan foot
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan foot
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan foot
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan foot
10-30 mSv
☢☢☢☢
May be appropriate
US foot
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT foot without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
WBC scan foot
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, tibia fibula, radiography normal, next imaging study 3195572
MRI lower leg without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI lower leg without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT lower leg with IV contrast
0.1-1mSv
☢☢
May be appropriate
CT lower leg without IV contrast
0.1-1mSv
☢☢
May be appropriate
3-phase bone scan leg
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan leg
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan leg
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan leg
10-30 mSv
☢☢☢☢
May be appropriate
US lower leg
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT lower leg without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
WBC scan leg
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, wrist, radiography normal, next imaging study 3195546
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT wrist with IV contrast
<0.1 mSv
☢
May be appropriate
CT wrist without IV contrast
<0.1 mSv
☢
May be appropriate
3-phase bone scan wrist
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
US wrist
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
WBC scan wrist
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, shoulder, radiography findings suggest osteomyelitis, next imaging study 3195558
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
3-phase bone scan shoulder
1-10 mSv
☢☢☢
May be appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
May be appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
US shoulder
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
WBC scan shoulder
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, pelvis, radiography normal, next imaging study 3195570
MRI pelvis without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
3-phase bone scan pelvis
1-10 mSv
☢☢☢
May be appropriate
CT pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
CT pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan pelvis
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan pelvis
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan pelvis
10-30 mSv
☢☢☢☢
May be appropriate
US pelvis
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
WBC scan pelvis
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, hand, radiography findings suggest osteomyelitis, next imaging study 3195553
MRI hand without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hand without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT hand with IV contrast
<0.1 mSv
☢
May be appropriate
CT hand without IV contrast
<0.1 mSv
☢
May be appropriate
3-phase bone scan hand
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan hand
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan hand
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan hand
10-30 mSv
☢☢☢☢
May be appropriate
US hand
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT hand without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
WBC scan hand
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, chest, radiography findings suggest osteomyelitis, next imaging study 3195548
MRI chest without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI chest without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
3-phase bone scan chest
1-10 mSv
☢☢☢
May be appropriate
CT chest with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
CT chest without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan chest
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan chest
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan chest
10-30 mSv
☢☢☢☢
May be appropriate
US chest
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT chest without and with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
WBC scan chest
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, knee, radiography normal, next imaging study 3195569
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan knee
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan knee
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
May be appropriate
US knee
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
WBC scan knee
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, ankle, radiography normal, next imaging study 3195560
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan ankle
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
US ankle
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
WBC scan ankle
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, hip, radiography normal, next imaging study 3195567
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
3-phase bone scan hip
1-10 mSv
☢☢☢
May be appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
May be appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan hip
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
May be appropriate
US hip
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
WBC scan hip
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, humerus, radiography findings suggest osteomyelitis, next imaging study 3195555
MRI upper arm without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI upper arm without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
3-phase bone scan arm
1-10 mSv
☢☢☢
May be appropriate
CT upper arm with IV contrast
1-10 mSv
☢☢☢
May be appropriate
CT upper arm without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3 phase bone scan and WBC scan and sulfur colloid marrow scan arm
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan arm
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan arm
10-30 mSv
☢☢☢☢
May be appropriate
US upper arm
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT upper arm without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
WBC scan arm
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, elbow, radiography normal, next imaging study 3195562
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
May be appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
May be appropriate
3-phase bone scan elbow
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
US elbow
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
WBC scan elbow
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, femur, radiography findings suggest osteomyelitis, next imaging study 3195550
MRI thigh without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI thigh without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT thigh with IV contrast
0.1-1mSv
☢☢
May be appropriate
CT thigh without IV contrast
0.1-1mSv
☢☢
May be appropriate
3-phase bone scan femur
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan and sulfur colloid scan femur
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan and WBC scan femur
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan femur
10-30 mSv
☢☢☢☢
May be appropriate
US thigh
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT thigh without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
WBC scan femur
10-30 mSv
☢☢☢☢
Usually not appropriate
Scenario Scenario ID Procedure Adult RRL Peds RRL Appropriateness Category
Osteomyelitis suspected, ankle, implanted extra articular surgical hardware, radiography findings suggest osteomyelitis, next imaging study 3195585
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US ankle
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan and WBC scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration ankle

Varies
Varies 		Usually not appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan ankle
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
Usually not appropriate
Soft tissue infection suspected, shoulder, implanted extra articular surgical hardware, radiography findings suggest osteomyelitis, next imaging study 3195599
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US shoulder
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
May be appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration shoulder

Varies
Varies 		Usually not appropriate
3-phase bone scan shoulder
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, ankle, implanted extra articular surgical hardware, radiography normal, next imaging study 3195580
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US ankle
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan and WBC scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration ankle

Varies
Varies 		Usually not appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan ankle
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
Usually not appropriate
Soft tissue infection suspected, shoulder, implanted extra articular surgical hardware, radiography normal, next imaging study 3195594
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US shoulder
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
May be appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration shoulder

Varies
Varies 		Usually not appropriate
3-phase bone scan shoulder
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, wrist, implanted extra articular surgical hardware, radiography findings suggest osteomyelitis, next imaging study 3195575
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US wrist
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT wrist with IV contrast
<0.1 mSv
☢
May be appropriate
CT wrist without IV contrast
<0.1 mSv
☢
May be appropriate
3-phase bone scan and WBC scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration wrist

Varies
Varies 		Usually not appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan wrist
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
Usually not appropriate
Soft tissue infection suspected, hip, implanted extra articular surgical hardware, radiography normal, next imaging study 3195592
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US hip
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
May be appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan hip
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan hip
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration hip

Varies
Varies 		Usually not appropriate
3-phase bone scan hip
1-10 mSv
☢☢☢
Usually not appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, elbow, implanted extra articular surgical hardware, radiography findings suggest soft tissue infection, next imaging study 3195606
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US elbow
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
May be appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
May be appropriate
3-phase bone scan and WBC scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration elbow

Varies
Varies 		Usually not appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan elbow
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, hip, implanted extra articular surgical hardware, radiography findings suggest osteomyelitis, next imaging study 3195587
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US hip
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
May be appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan hip
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan hip
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration hip

Varies
Varies 		Usually not appropriate
3-phase bone scan hip
1-10 mSv
☢☢☢
Usually not appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, knee, implanted extra articular surgical hardware, radiography findings suggest soft tissue infection, next imaging study 3195608
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US knee
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan and WBC scan knee
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan knee
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration knee

Varies
Varies 		Usually not appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan knee
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, hip, implanted extra articular surgical hardware, radiography normal, next imaging study 3195582
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US hip
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
May be appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan hip
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan hip
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration hip

Varies
Varies 		Usually not appropriate
3-phase bone scan hip
1-10 mSv
☢☢☢
Usually not appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
Usually not appropriate
Soft tissue infection suspected, elbow, implanted extra articular surgical hardware, radiography findings suggest osteomyelitis, next imaging study 3195596
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US elbow
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
May be appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
May be appropriate
3-phase bone scan and WBC scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration elbow

Varies
Varies 		Usually not appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan elbow
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
Usually not appropriate
Soft tissue infection suspected, knee, implanted extra articular surgical hardware, radiography findings suggest soft tissue infection, next imaging study 3195603
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US knee
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan and WBC scan knee
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan knee
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration knee

Varies
Varies 		Usually not appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan knee
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
Usually not appropriate
Soft tissue infection suspected, wrist, implanted extra articular surgical hardware, radiography findings suggest osteomyelitis, next imaging study 3195577
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US wrist
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT wrist with IV contrast
<0.1 mSv
☢
May be appropriate
CT wrist without IV contrast
<0.1 mSv
☢
May be appropriate
3-phase bone scan and WBC scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration wrist

Varies
Varies 		Usually not appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan wrist
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
Usually not appropriate
Soft tissue infection suspected, elbow, implanted extra articular surgical hardware, radiography normal, next imaging study 3195591
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US elbow
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
May be appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
May be appropriate
3-phase bone scan and WBC scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration elbow

Varies
Varies 		Usually not appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan elbow
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, shoulder, implanted extra articular surgical hardware, radiography findings suggest osteomyelitis, next imaging study 3195589
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US shoulder
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
May be appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration shoulder

Varies
Varies 		Usually not appropriate
3-phase bone scan shoulder
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, shoulder, implanted extra articular surgical hardware, radiography normal, next imaging study 3195584
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US shoulder
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
May be appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration shoulder

Varies
Varies 		Usually not appropriate
3-phase bone scan shoulder
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
Usually not appropriate
Soft tissue infection suspected, elbow, implanted extra articular surgical hardware, radiography findings suggest soft tissue infection, next imaging study 3195601
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US elbow
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
May be appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
May be appropriate
3-phase bone scan and WBC scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration elbow

Varies
Varies 		Usually not appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan elbow
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, knee, implanted extra articular surgical hardware, radiography findings suggest osteomyelitis, next imaging study 3195588
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US knee
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan and WBC scan knee
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan knee
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration knee

Varies
Varies 		Usually not appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan knee
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, ankle, implanted extra articular surgical hardware, radiography findings suggest soft tissue infection, next imaging study 3195605
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US ankle
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan and WBC scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration ankle

Varies
Varies 		Usually not appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan ankle
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, wrist, implanted extra articular surgical hardware, radiography findings suggest soft tissue infection, next imaging study 3195579
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US wrist
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT wrist with IV contrast
<0.1 mSv
☢
May be appropriate
CT wrist without IV contrast
<0.1 mSv
☢
May be appropriate
3-phase bone scan and WBC scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration wrist

Varies
Varies 		Usually not appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan wrist
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
Usually not appropriate
Soft tissue infection suspected, ankle, implanted extra articular surgical hardware, radiography findings suggest soft tissue infection, next imaging study 3195600
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US ankle
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan and WBC scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration ankle

Varies
Varies 		Usually not appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan ankle
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, wrist, implanted extra articular surgical hardware, radiography normal, next imaging study 3195574
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US wrist
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT wrist with IV contrast
<0.1 mSv
☢
May be appropriate
CT wrist without IV contrast
<0.1 mSv
☢
May be appropriate
3-phase bone scan and WBC scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration wrist

Varies
Varies 		Usually not appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan wrist
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
Usually not appropriate
Soft tissue infection suspected, knee, implanted extra articular surgical hardware, radiography findings suggest osteomyelitis, next imaging study 3195598
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US knee
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan and WBC scan knee
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan knee
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration knee

Varies
Varies 		Usually not appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan knee
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, elbow, implanted extra articular surgical hardware, radiography findings suggest osteomyelitis, next imaging study 3195586
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US elbow
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
May be appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
May be appropriate
3-phase bone scan and WBC scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration elbow

Varies
Varies 		Usually not appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan elbow
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
Usually not appropriate
Soft tissue infection suspected, knee, implanted extra articular surgical hardware, radiography normal, next imaging study 3195593
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US knee
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan and WBC scan knee
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan knee
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration knee

Varies
Varies 		Usually not appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan knee
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, hip, implanted extra articular surgical hardware, radiography findings suggest soft tissue infection, next imaging study 3195607
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US hip
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
May be appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan hip
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan hip
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration hip

Varies
Varies 		Usually not appropriate
3-phase bone scan hip
1-10 mSv
☢☢☢
Usually not appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, elbow, implanted extra articular surgical hardware, radiography normal, next imaging study 3195581
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US elbow
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
May be appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
May be appropriate
3-phase bone scan and WBC scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration elbow

Varies
Varies 		Usually not appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan elbow
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
Usually not appropriate
Soft tissue infection suspected, hip, implanted extra articular surgical hardware, radiography findings suggest soft tissue infection, next imaging study 3195602
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US hip
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
May be appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan hip
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan hip
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration hip

Varies
Varies 		Usually not appropriate
3-phase bone scan hip
1-10 mSv
☢☢☢
Usually not appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
Usually not appropriate
Soft tissue infection suspected, wrist, implanted extra articular surgical hardware, radiography normal, next imaging study 3195576
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US wrist
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT wrist with IV contrast
<0.1 mSv
☢
May be appropriate
CT wrist without IV contrast
<0.1 mSv
☢
May be appropriate
3-phase bone scan and WBC scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration wrist

Varies
Varies 		Usually not appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan wrist
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, knee, implanted extra articular surgical hardware, radiography normal, next imaging study 3195583
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US knee
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan and WBC scan knee
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan knee
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration knee

Varies
Varies 		Usually not appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan knee
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
Usually not appropriate
Soft tissue infection suspected, hip, implanted extra articular surgical hardware, radiography findings suggest osteomyelitis, next imaging study 3195597
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US hip
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
May be appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan hip
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan hip
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration hip

Varies
Varies 		Usually not appropriate
3-phase bone scan hip
1-10 mSv
☢☢☢
Usually not appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
Usually not appropriate
Soft tissue infection suspected, wrist, implanted extra articular surgical hardware, radiography findings suggest soft tissue infection, next imaging study 3195578
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US wrist
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT wrist with IV contrast
<0.1 mSv
☢
May be appropriate
CT wrist without IV contrast
<0.1 mSv
☢
May be appropriate
3-phase bone scan and WBC scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration wrist

Varies
Varies 		Usually not appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan wrist
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
Usually not appropriate
Soft tissue infection suspected, ankle, implanted extra articular surgical hardware, radiography findings suggest osteomyelitis, next imaging study 3195595
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US ankle
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan and WBC scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration ankle

Varies
Varies 		Usually not appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan ankle
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
Usually not appropriate
Osteomyelitis suspected, shoulder, implanted extra articular surgical hardware, radiography findings suggest soft tissue infection, next imaging study 3195609
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US shoulder
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
May be appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration shoulder

Varies
Varies 		Usually not appropriate
3-phase bone scan shoulder
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
Usually not appropriate
Soft tissue infection suspected, ankle, implanted extra articular surgical hardware, radiography normal, next imaging study 3195590
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US ankle
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan and WBC scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration ankle

Varies
Varies 		Usually not appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan ankle
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
Usually not appropriate
Soft tissue infection suspected, shoulder, implanted extra articular surgical hardware, radiography findings suggest soft tissue infection, next imaging study 3195604
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
US shoulder
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
May be appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
Image-guided aspiration shoulder

Varies
Varies 		Usually not appropriate
3-phase bone scan shoulder
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
Usually not appropriate
Scenario Scenario ID Procedure Adult RRL Peds RRL Appropriateness Category
Septic arthritis suspected, hip, arthroplasty, radiography normal, next imaging study 3195627
Image-guided aspiration hip

Varies
Varies 		Usually appropriate
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
US hip
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan hip
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan hip
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan hip
1-10 mSv
☢☢☢
Usually not appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, shoulder, implanted intra articular surgical hardware, radiography findings suggest septic arthritis, next imaging study 3195634
Image-guided aspiration shoulder

Varies
Varies 		Usually appropriate
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
US shoulder
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan shoulder
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, hip, arthroplasty, radiography findings suggest septic arthritis, next imaging study 3195622
Image-guided aspiration hip

Varies
Varies 		Usually appropriate
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
US hip
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan hip
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan hip
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan hip
1-10 mSv
☢☢☢
Usually not appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, shoulder, arthroplasty, radiography normal, next imaging study 3195629
Image-guided aspiration shoulder

Varies
Varies 		Usually appropriate
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
US shoulder
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan shoulder
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, ankle, arthroplasty, radiography findings suggest septic arthritis, next imaging study 3195620
Image-guided aspiration ankle

Varies
Varies 		Usually appropriate
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
US ankle
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan and WBC scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan ankle
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, ankle, implanted intra articular surgical hardware, radiography normal, next imaging study 3195615
Image-guided aspiration ankle

Varies
Varies 		Usually appropriate
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
US ankle
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan and WBC scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan ankle
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, shoulder, implanted intra articular surgical hardware, radiography normal, next imaging study 3195619
Image-guided aspiration shoulder

Varies
Varies 		Usually appropriate
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
US shoulder
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan shoulder
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, elbow, implanted intra articular surgical hardware, radiography findings suggest septic arthritis, next imaging study 3195631
Image-guided aspiration elbow

Varies
Varies 		Usually appropriate
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
Usually appropriate
US elbow
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
May be appropriate
3-phase bone scan and WBC scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan elbow
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, hip, implanted intra articular surgical hardware, radiography normal, next imaging study 3195617
Image-guided aspiration hip

Varies
Varies 		Usually appropriate
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
US hip
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan hip
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan hip
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan hip
1-10 mSv
☢☢☢
Usually not appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, shoulder, arthroplasty, radiography findings suggest septic arthritis, next imaging study 3195624
Image-guided aspiration shoulder

Varies
Varies 		Usually appropriate
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
US shoulder
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan shoulder
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan shoulder
1-10 mSv
☢☢☢
Usually not appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan shoulder
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, wrist, arthroplasty, radiography normal, next imaging study 3195612
Image-guided aspiration wrist

Varies
Varies 		Usually appropriate
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT wrist with IV contrast
<0.1 mSv
☢
Usually appropriate
US wrist
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT wrist without IV contrast
<0.1 mSv
☢
May be appropriate
3-phase bone scan and WBC scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan wrist
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, knee, implanted intra articular surgical hardware, radiography findings suggest septic arthritis, next imaging study 3195633
Image-guided aspiration knee

Varies
Varies 		Usually appropriate
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
US knee
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan and WBC scan knee
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan knee
10-30 mSv
☢☢☢☢
May be appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan knee
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, elbow, implanted intra articular surgical hardware, radiography normal, next imaging study 3195616
Image-guided aspiration elbow

Varies
Varies 		Usually appropriate
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
Usually appropriate
US elbow
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
May be appropriate
3-phase bone scan and WBC scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan elbow
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, wrist, implanted intra articular surgical hardware, radiography normal, next imaging study 3195614
Image-guided aspiration wrist

Varies
Varies 		Usually appropriate
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT wrist with IV contrast
<0.1 mSv
☢
Usually appropriate
US wrist
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT wrist without IV contrast
<0.1 mSv
☢
May be appropriate
3-phase bone scan and WBC scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan wrist
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, knee, arthroplasty, radiography normal, next imaging study 3195628
Image-guided aspiration knee

Varies
Varies 		Usually appropriate
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
US knee
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan and WBC scan knee
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan knee
10-30 mSv
☢☢☢☢
May be appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan knee
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, elbow, arthroplasty, radiography normal, next imaging study 3195626
Image-guided aspiration elbow

Varies
Varies 		Usually appropriate
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
Usually appropriate
US elbow
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
May be appropriate
3-phase bone scan and WBC scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan elbow
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, elbow, arthroplasty, radiography findings suggest septic arthritis, next imaging study 3195621
Image-guided aspiration elbow

Varies
Varies 		Usually appropriate
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
Usually appropriate
US elbow
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
May be appropriate
3-phase bone scan and WBC scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan elbow
10-30 mSv
☢☢☢☢
May be appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
3-phase bone scan elbow
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan elbow
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, wrist, arthroplasty, radiography findings suggest septic arthritis, next imaging study 3195613
Image-guided aspiration wrist

Varies
Varies 		Usually appropriate
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT wrist with IV contrast
<0.1 mSv
☢
Usually appropriate
US wrist
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT wrist without IV contrast
<0.1 mSv
☢
May be appropriate
3-phase bone scan and WBC scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan wrist
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, ankle, implanted intra articular surgical hardware, radiography findings suggest septic arthritis, next imaging study 3195630
Image-guided aspiration ankle

Varies
Varies 		Usually appropriate
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
US ankle
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan and WBC scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan ankle
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, wrist, implanted intra articular surgical hardware, radiography findings suggest septic arthritis, next imaging study 3195611
Image-guided aspiration wrist

Varies
Varies 		Usually appropriate
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT wrist with IV contrast
<0.1 mSv
☢
Usually appropriate
US wrist
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT wrist without IV contrast
<0.1 mSv
☢
May be appropriate
3-phase bone scan and WBC scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan wrist
10-30 mSv
☢☢☢☢
May be appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
3-phase bone scan wrist
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan wrist
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, ankle, arthroplasty, radiography normal, next imaging study 3195625
Image-guided aspiration ankle

Varies
Varies 		Usually appropriate
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
US ankle
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan and WBC scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan ankle
10-30 mSv
☢☢☢☢
May be appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan ankle
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan ankle
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, knee, arthroplasty, radiography findings suggest septic arthritis, next imaging study 3195623
Image-guided aspiration knee

Varies
Varies 		Usually appropriate
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
US knee
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan and WBC scan knee
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan knee
10-30 mSv
☢☢☢☢
May be appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan knee
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, knee, implanted intra articular surgical hardware, radiography normal, next imaging study 3195618
Image-guided aspiration knee

Varies
Varies 		Usually appropriate
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
US knee
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		May be appropriate
3-phase bone scan and WBC scan knee
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan knee
10-30 mSv
☢☢☢☢
May be appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
3-phase bone scan knee
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan knee
10-30 mSv
☢☢☢☢
Usually not appropriate
Septic arthritis suspected, hip, implanted intra articular surgical hardware, radiography findings suggest septic arthritis, next imaging study 3195632
Image-guided aspiration hip

Varies
Varies 		Usually appropriate
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
US hip
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
May be appropriate
3-phase bone scan and WBC scan hip
10-30 mSv
☢☢☢☢
May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
May be appropriate
WBC scan hip
10-30 mSv
☢☢☢☢
May be appropriate
3-phase bone scan hip
1-10 mSv
☢☢☢
Usually not appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
3-phase bone scan and WBC scan and sulfur colloid scan hip
10-30 mSv
☢☢☢☢
Usually not appropriate
Scenario Scenario ID Procedure Adult RRL Peds RRL Appropriateness Category
Soft tissue infection suspected, lower leg, hx of puncture wound, possible foreign body retained, radiography normal, next imaging study 3195650
US lower leg
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI lower leg without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI lower leg without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT lower leg with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT lower leg without and with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT lower leg without IV contrast
0.1-1mSv
☢☢
Usually appropriate
Soft tissue infection suspected, neck, hx of puncture wound, possible foreign body retained, radiography normal, next imaging study 3195638
US neck
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI neck without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI neck without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT neck with IV contrast
1-10 mSv
☢☢☢ 		0.3-3 mSv [ped]
☢☢☢ 		Usually appropriate
CT neck without and with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT neck without IV contrast
1-10 mSv
☢☢☢ 		0.3-3 mSv [ped]
☢☢☢ 		Usually appropriate
Soft tissue infection suspected, ankle, hx of puncture wound, possible foreign body retained, radiography normal, next imaging study 3195636
US ankle
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
Soft tissue infection suspected, pelvis, hx of puncture wound, possible foreign body retained, radiography normal, next imaging study 3195648
US pelvis
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI pelvis without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
Soft tissue infection suspected, forearm, hx of puncture wound, possible foreign body retained, radiography normal, next imaging study 3195643
US forearm
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI forearm without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI forearm without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT forearm with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT forearm without and with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT forearm without IV contrast
0.1-1mSv
☢☢
Usually appropriate
Soft tissue infection suspected, knee, hx of puncture wound, possible foreign body retained, radiography normal, next imaging study 3195647
US knee
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
Soft tissue infection suspected, hip, hx of puncture wound, possible foreign body retained, radiography normal, next imaging study 3195645
US hip
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
Usually appropriate
Soft tissue infection suspected, elbow, hx of puncture wound, possible foreign body retained, radiography normal, next imaging study 3195640
US elbow
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
Usually appropriate
Soft tissue infection suspected, hand, hx of puncture wound, possible foreign body retained, radiography normal, next imaging study 3195644
US hand
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hand without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hand without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT hand with IV contrast
<0.1 mSv
☢
Usually appropriate
CT hand without and with IV contrast
<0.1 mSv
☢
Usually appropriate
CT hand without IV contrast
<0.1 mSv
☢
Usually appropriate
Soft tissue infection suspected, foot, hx of puncture wound, possible foreign body retained, radiography normal, next imaging study 3195642
US foot
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI foot without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI foot without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT foot with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT foot without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT foot without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
Soft tissue infection suspected, abdomen, hx of puncture wound, possible foreign body retained, radiography normal, next imaging study 3195637
US abdomen
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI abdomen without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI abdomen without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT abdomen with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT abdomen without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT abdomen without and with IV contrast
10-30 mSv
☢☢☢☢ 		10-30 mSv [ped]
☢☢☢☢☢ 		Usually appropriate
Soft tissue infection suspected, wrist, hx of puncture wound, possible foreign body retained, radiography normal, next imaging study 3195651
US wrist
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT wrist with IV contrast
<0.1 mSv
☢
Usually appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually appropriate
CT wrist without IV contrast
<0.1 mSv
☢
Usually appropriate
Soft tissue infection suspected, shoulder, hx of puncture wound, possible foreign body retained, radiography normal, next imaging study 3195649
US shoulder
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
Usually appropriate
Soft tissue infection suspected, thigh, hx of puncture wound, possible foreign body retained, radiography normal, next imaging study 3195641
US thigh
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI thigh without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI thigh without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT thigh with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT thigh without IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT thigh without and with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
Soft tissue infection suspected, chest, hx of puncture wound, possible foreign body retained, radiography normal, next imaging study 3195639
US chest
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI chest without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI chest without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT chest with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT chest without and with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT chest without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
Soft tissue infection suspected, upper arm, hx of puncture wound, possible foreign body retained, radiography normal, next imaging study 3195646
US upper arm
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI upper arm without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI upper arm without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT upper arm with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT upper arm without and with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT upper arm without IV contrast
1-10 mSv
☢☢☢
Usually appropriate
Scenario Scenario ID Procedure Adult RRL Peds RRL Appropriateness Category
Soft tissue infection suspected, hand, soft tissue gas on radiography, no puncture wound, next imaging study 3195678
MRI hand without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hand without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT hand with IV contrast
<0.1 mSv
☢
Usually appropriate
CT hand without IV contrast
<0.1 mSv
☢
Usually appropriate
US hand
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT hand without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
Soft tissue infection suspected, chest, soft tissue gas on radiography, no puncture wound, next imaging study 3195673
MRI chest without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI chest without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT chest with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT chest without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
US chest
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT chest without and with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Soft tissue infection suspected, hip, radiography normal, necrotizing fasciitis highly suspected, next imaging study 3195664
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
Usually appropriate
US hip
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, neck, soft tissue gas on radiography, no puncture wound, next imaging study 3195671
MRI neck without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI neck without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT neck with IV contrast
1-10 mSv
☢☢☢ 		0.3-3 mSv [ped]
☢☢☢ 		Usually appropriate
CT neck without IV contrast
1-10 mSv
☢☢☢ 		0.3-3 mSv [ped]
☢☢☢ 		Usually appropriate
US neck
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT neck without and with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Soft tissue infection suspected, elbow, radiography normal, necrotizing fasciitis highly suspected, next imaging study 3195659
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
Usually appropriate
US elbow
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
Soft tissue infection suspected, knee, radiography normal, necrotizing fasciitis highly suspected, next imaging study 3195666
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
US knee
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
Soft tissue infection suspected, shoulder, soft tissue gas on radiography, no puncture wound, next imaging study 3195683
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
Usually appropriate
US shoulder
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, foot, radiography normal, necrotizing fasciitis highly suspected, next imaging study 3195661
MRI foot without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI foot without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT foot with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT foot without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
US foot
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT foot without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
Soft tissue infection suspected, thigh, soft tissue gas on radiography, no puncture wound, next imaging study 3195675
MRI thigh without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI thigh without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT thigh with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT thigh without IV contrast
0.1-1mSv
☢☢
Usually appropriate
US thigh
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT thigh without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, neck, radiography normal, necrotizing fasciitis highly suspected, next imaging study 3195656
MRI neck without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI neck without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT neck with IV contrast
1-10 mSv
☢☢☢ 		0.3-3 mSv [ped]
☢☢☢ 		Usually appropriate
CT neck without IV contrast
1-10 mSv
☢☢☢ 		0.3-3 mSv [ped]
☢☢☢ 		Usually appropriate
US neck
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT neck without and with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Soft tissue infection suspected, shoulder, radiography normal, necrotizing fasciitis highly suspected, next imaging study 3195668
MRI shoulder without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI shoulder without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT shoulder with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT shoulder without IV contrast
1-10 mSv
☢☢☢
Usually appropriate
US shoulder
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT shoulder without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, pelvis, soft tissue gas on radiography, no puncture wound, next imaging study 3195682
MRI pelvis without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
US pelvis
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Soft tissue infection suspected, hand, radiography normal, necrotizing fasciitis highly suspected, next imaging study 3195663
MRI hand without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hand without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT hand with IV contrast
<0.1 mSv
☢
Usually appropriate
CT hand without IV contrast
<0.1 mSv
☢
Usually appropriate
US hand
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT hand without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
Soft tissue infection suspected, upper arm, soft tissue gas on radiography, no puncture wound, next imaging study 3195680
MRI upper arm without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI upper arm without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT upper arm with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT upper arm without IV contrast
1-10 mSv
☢☢☢
Usually appropriate
US upper arm
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT upper arm without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, wrist, soft tissue gas on radiography, no puncture wound, next imaging study 3195654
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT wrist with IV contrast
<0.1 mSv
☢
Usually appropriate
CT wrist without IV contrast
<0.1 mSv
☢
Usually appropriate
US wrist
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
Soft tissue infection suspected, chest, radiography normal, necrotizing fasciitis highly suspected, next imaging study 3195658
MRI chest without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI chest without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT chest with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT chest without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
US chest
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT chest without and with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Soft tissue infection suspected, ankle, soft tissue gas on radiography, no puncture wound, next imaging study 3195672
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
US ankle
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
Soft tissue infection suspected, wrist, radiography normal, necrotizing fasciitis highly suspected, next imaging study 3195653
MRI wrist without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI wrist without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT wrist with IV contrast
<0.1 mSv
☢
Usually appropriate
CT wrist without IV contrast
<0.1 mSv
☢
Usually appropriate
US wrist
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT wrist without and with IV contrast
<0.1 mSv
☢
Usually not appropriate
Soft tissue infection suspected, abdomen, soft tissue gas on radiography, no puncture wound, next imaging study 3195670
MRI abdomen without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI abdomen without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT abdomen with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT abdomen without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
US abdomen
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT abdomen without and with IV contrast
10-30 mSv
☢☢☢☢ 		10-30 mSv [ped]
☢☢☢☢☢ 		Usually not appropriate
Soft tissue infection suspected, lower leg, soft tissue gas on radiography, no puncture wound, next imaging study 3195684
MRI lower leg without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI lower leg without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT lower leg with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT lower leg without IV contrast
0.1-1mSv
☢☢
Usually appropriate
US lower leg
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT lower leg without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
Soft tissue infection suspected, upper arm, radiography normal, necrotizing fasciitis highly suspected, next imaging study 3195665
MRI upper arm without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI upper arm without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT upper arm with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT upper arm without IV contrast
1-10 mSv
☢☢☢
Usually appropriate
US upper arm
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT upper arm without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, hip, soft tissue gas on radiography, no puncture wound, next imaging study 3195679
MRI hip without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI hip without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT hip with IV contrast
1-10 mSv
☢☢☢
Usually appropriate
CT hip without IV contrast
1-10 mSv
☢☢☢
Usually appropriate
US hip
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT hip without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, thigh, radiography normal, necrotizing fasciitis highly suspected, next imaging study 3195660
MRI thigh without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI thigh without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT thigh with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT thigh without IV contrast
0.1-1mSv
☢☢
Usually appropriate
US thigh
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT thigh without and with IV contrast
1-10 mSv
☢☢☢
Usually not appropriate
Soft tissue infection suspected, forearm, soft tissue gas on radiography, no puncture wound, next imaging study 3195677
MRI forearm without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI forearm without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT forearm with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT forearm without IV contrast
0.1-1mSv
☢☢
Usually appropriate
US forearm
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT forearm without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
Soft tissue infection suspected, knee, soft tissue gas on radiography, no puncture wound, next imaging study 3195681
MRI knee without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI knee without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT knee with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT knee without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
US knee
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT knee without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
Soft tissue infection suspected, abdomen, radiography normal, necrotizing fasciitis highly suspected, next imaging study 3195655
MRI abdomen without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI abdomen without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT abdomen with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT abdomen without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
US abdomen
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT abdomen without and with IV contrast
10-30 mSv
☢☢☢☢ 		10-30 mSv [ped]
☢☢☢☢☢ 		Usually not appropriate
Soft tissue infection suspected, lower leg, radiography normal, necrotizing fasciitis highly suspected, next imaging study 3195669
MRI lower leg without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI lower leg without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT lower leg with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT lower leg without IV contrast
0.1-1mSv
☢☢
Usually appropriate
US lower leg
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT lower leg without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
Soft tissue infection suspected, foot, soft tissue gas on radiography, no puncture wound, next imaging study 3195676
MRI foot without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI foot without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT foot with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT foot without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
US foot
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT foot without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
Soft tissue infection suspected, pelvis, radiography normal, necrotizing fasciitis highly suspected, next imaging study 3195667
MRI pelvis without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
US pelvis
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Soft tissue infection suspected, forearm, radiography normal, necrotizing fasciitis highly suspected, next imaging study 3195662
MRI forearm without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI forearm without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT forearm with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT forearm without IV contrast
0.1-1mSv
☢☢
Usually appropriate
US forearm
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT forearm without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
Soft tissue infection suspected, ankle, radiography normal, necrotizing fasciitis highly suspected, next imaging study 3195657
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI ankle without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT ankle with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
CT ankle without IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually appropriate
US ankle
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT ankle without and with IV contrast
<0.1 mSv
☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
Soft tissue infection suspected, elbow, soft tissue gas on radiography, no puncture wound, next imaging study 3195674
MRI elbow without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI elbow without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT elbow with IV contrast
0.1-1mSv
☢☢
Usually appropriate
CT elbow without IV contrast
0.1-1mSv
☢☢
Usually appropriate
US elbow
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT elbow without and with IV contrast
0.1-1mSv
☢☢
Usually not appropriate
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