ACR AC Portal

Home Osteomyelitis or Septic Arthritis-Child (Excluding Axial Skeleton)

Variants

Child. Younger than 5 years of age. Concern for osteomyelitis or septic arthritis involving an extremity. Initial radiographs normal, or with findings suggestive of osteomyelitis. Next imaging study.

Documents

Scenario

Scenario ID

Procedure

Adult RRL

Peds RRL

Appropriateness Category

Osteomyelitis or septic arthritis suspected, knee, findings suggestive of osteomyelitis on radiography, next imaging study

3195023

US knee

0 mSv
O

0 mSv [ped]
O

Usually appropriate

Image-guided aspiration knee

Varies

Usually appropriate

MRI knee without and with IV contrast

0 mSv
O

0 mSv [ped]
O

Usually appropriate

MRI lower extremity without and with IV contrast

0 mSv
O

0 mSv [ped]
O

Usually appropriate

MRI lower extremity without IV contrast

0 mSv
O

0 mSv [ped]
O

Usually appropriate

Bone scan whole body and 3-phase bone scan knee

3-10 mSv [ped]
☢☢☢☢

May be appropriate

MRI knee without IV contrast

0 mSv
O

0 mSv [ped]
O

May be appropriate

MRI whole body without and with IV contrast

0 mSv
O

0 mSv [ped]
O

May be appropriate

MRI whole body without IV contrast

0 mSv
O

0 mSv [ped]
O

May be 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