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Home Chronic Extremity Joint Pain-Suspected Inflammatory Arthritis, Crystalline Arthritis, or Erosive Osteoarthritis
Variants
Scenario Scenario ID Procedure Adult RRL Peds RRL Appropriateness Category
Ankle pain, chronic, erosive osteoarthritis suspected, radiography inconclusive, next imaging study 3196210
US ankle
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
MRI ankle without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
Image-guided aspiration ankle

Varies
Varies 		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
Bone scan whole body
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
FDG-PET/CT whole body
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate