ACR AC Portal

Home Suspected Osteomyelitis, Septic Arthritis, or Soft Tissue Infection (Excluding Spine and Diabetic Foot)

Variants

Documents

Scenario

Scenario ID

Procedure

Adult RRL

Peds RRL

Appropriateness Category

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

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