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Variants
Scenario Scenario ID Procedure Adult RRL Peds RRL Appropriateness Category
Ataxia, chronic, nonprogressive, initial imaging 3195360
MRI head without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI complete spine without IV contrast
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT head without IV contrast
1-10 mSv
☢☢☢ 		0.3-3 mSv [ped]
☢☢☢ 		May be appropriate
MR spectroscopy head without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRA head and neck without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRA head without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRA neck with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRA neck without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI complete spine without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRI head without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRV head and neck without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRV head with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRV head without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
MRV head without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT head with IV contrast
1-10 mSv
☢☢☢ 		0.3-3 mSv [ped]
☢☢☢ 		Usually not appropriate
CT head without and with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CTA head and neck with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CTA head with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CTA neck with IV contrast
1-10 mSv
☢☢☢ 		0.3-3 mSv [ped]
☢☢☢ 		Usually not appropriate
CTV head with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT complete spine with IV contrast
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT complete spine without and with IV contrast
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT complete spine without IV contrast
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate