Home Acute Trauma to the Knee
Scenario Scenario ID Procedure Adult RRL Peds RRL Appropriateness Category
Knee trauma, fall or twisting, internal derangement suspected, no fracture on radiography, next imaging study 3183788
MRI knee without IV contrast
0 mSv
O
0 mSv [ped]
O
Usually 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
MR arthrography knee
0 mSv
O
0 mSv [ped]
O
Usually not appropriate
MRA knee without and with IV contrast
0 mSv
O
0 mSv [ped]
O
Usually not appropriate
MRA knee without IV contrast
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 with SPECT or SPECT/CT lower extremity
1-10 mSv
☢☢☢
3-10 mSv [ped]
☢☢☢☢
Usually not appropriate