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Scenario

Scenario ID

Procedure

Adult RRL

Peds RRL

Appropriateness Category

Knee pain, chronic, initial exam

3148156

Radiography knee

<0.1 mSv
☢

<0.03 mSv [ped]
☢

Usually appropriate

US knee

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

Radiography hip ipsilateral

1-10 mSv
☢☢☢

0.3-3 mSv [ped]
☢☢☢

Usually not appropriate

Image-guided aspiration knee

Varies

Usually not appropriate

MR arthrography 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 arthrography knee

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

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

Bone scan knee

1-10 mSv
☢☢☢

Usually not appropriate

Scenario

Scenario ID

Procedure

Adult RRL

Peds RRL

Appropriateness Category

Knee pain, chronic, negative radiography

3148608

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
(Disagreement)

Radiography hip ipsilateral

1-10 mSv
☢☢☢

0.3-3 mSv [ped]
☢☢☢

May be appropriate

Radiography lumbar spine

1-10 mSv
☢☢☢

0.03-0.3 mSv [ped]
☢☢

May be appropriate

Image-guided aspiration knee

Varies

May be appropriate

MR arthrography knee

0 mSv
O

0 mSv [ped]
O

May be appropriate

CT arthrography knee

<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

MRI knee without and with 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

Bone scan knee

1-10 mSv
☢☢☢

Usually not appropriate

Knee pain, chronic, joint effusion on radiography

3148609

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
(Disagreement)

Radiography hip ipsilateral

1-10 mSv
☢☢☢

0.3-3 mSv [ped]
☢☢☢

May be appropriate

Radiography lumbar spine

1-10 mSv
☢☢☢

0.03-0.3 mSv [ped]
☢☢

May be appropriate

Image-guided aspiration knee

Varies

May be appropriate

MR arthrography knee

0 mSv
O

0 mSv [ped]
O

May be appropriate

CT arthrography knee

<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

MRI knee without and with 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

Bone scan knee

1-10 mSv
☢☢☢

Usually not appropriate

Scenario

Scenario ID

Procedure

Adult RRL

Peds RRL

Appropriateness Category

Knee pain, chronic, osteochondritis or loose bodies or prev surgery on radiography

3148158

MRI knee without IV contrast

0 mSv
O

0 mSv [ped]
O

Usually appropriate

MR arthrography knee

0 mSv
O

0 mSv [ped]
O

May be appropriate
(Disagreement)

CT arthrography knee

<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

US knee

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

Radiography hip ipsilateral

1-10 mSv
☢☢☢

0.3-3 mSv [ped]
☢☢☢

Usually not appropriate

Image-guided aspiration knee

Varies

Usually not appropriate

MRI knee without and with 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

Bone scan knee

1-10 mSv
☢☢☢

Usually not appropriate

Scenario

Scenario ID

Procedure

Adult RRL

Peds RRL

Appropriateness Category

Knee pain, chronic, calcinosis or degenerative disease on radiography

3148159

Image-guided aspiration knee

Varies

May be appropriate
(Disagreement)

MRI knee without IV contrast

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

US knee

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

Radiography hip ipsilateral

1-10 mSv
☢☢☢

0.3-3 mSv [ped]
☢☢☢

Usually not appropriate

MR arthrography 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

CT arthrography knee

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

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

Bone scan knee

1-10 mSv
☢☢☢

Usually not appropriate

Scenario

Scenario ID

Procedure

Adult RRL

Peds RRL

Appropriateness Category

Knee pain, chronic, prior injury on radiography

3148160

MRI knee without IV contrast

0 mSv
O

0 mSv [ped]
O

Usually appropriate

CT arthrography knee

<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

US knee

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

Radiography hip ipsilateral

1-10 mSv
☢☢☢

0.3-3 mSv [ped]
☢☢☢

Usually not appropriate

Image-guided aspiration knee

Varies

Usually not appropriate

MR arthrography 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

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

Bone scan knee

1-10 mSv
☢☢☢

Usually not appropriate