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Home Primary Bone Tumors
Variants
Scenario Scenario ID Procedure Adult RRL Peds RRL Appropriateness Category
Primary bone tumor suspected, knee, radiography negative or equivocal, next imaging study 3109199
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 without and with IV contrast
<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
CT knee with 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