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Variants
Scenario Scenario ID Procedure Adult RRL Peds RRL Appropriateness Category
Perianal fistula suspected, initial imaging 3194185
MRI pelvis without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
US endoanal
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
MRI pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
Radiography pelvis
0.1-1mSv
☢☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
Fluoroscopy contrast enema
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Fluoroscopy fistulography anus
1-10 mSv
☢☢☢
Usually not appropriate
CT pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Perianal abscess suspected, initial imaging 3194184
MRI pelvis without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
US endoanal
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
MRI pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
Radiography pelvis
0.1-1mSv
☢☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
Fluoroscopy contrast enema
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Fluoroscopy fistulography anus
1-10 mSv
☢☢☢
Usually not appropriate
CT pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Scenario Scenario ID Procedure Adult RRL Peds RRL Appropriateness Category
Rectovesicular fistula suspected, initial imaging 3194187
MRI pelvis without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
US pelvis transrectal
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
Fluoroscopy contrast enema
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
Fluoroscopy cystography
1-10 mSv
☢☢☢
May be appropriate
Fluoroscopy vaginography
1-10 mSv
☢☢☢
May be appropriate
MRI pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
Radiography pelvis
0.1-1mSv
☢☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
CT pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Rectovaginal fistula suspected, initial imaging 3194188
MRI pelvis without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
US pelvis transrectal
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
Fluoroscopy contrast enema
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
Fluoroscopy cystography
1-10 mSv
☢☢☢
May be appropriate
Fluoroscopy vaginography
1-10 mSv
☢☢☢
May be appropriate
MRI pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
Radiography pelvis
0.1-1mSv
☢☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
CT pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Scenario Scenario ID Procedure Adult RRL Peds RRL Appropriateness Category
Pouchitis suspected, initial imaging 3194191
MR enterography
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI pelvis without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT enterography
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
Fluoroscopy contrast enema
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
MRI pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
US pelvis
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
Radiography pelvis
0.1-1mSv
☢☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
CT pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
WBC scan abdomen and pelvis
10-30 mSv
☢☢☢☢
Usually not appropriate
Proctitis suspected, initial imaging 3194190
MR enterography
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI pelvis without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT enterography
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
Fluoroscopy contrast enema
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
MRI pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
US pelvis
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
Radiography pelvis
0.1-1mSv
☢☢ 		0.03-0.3 mSv [ped]
☢☢ 		Usually not appropriate
CT pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
WBC scan abdomen and pelvis
10-30 mSv
☢☢☢☢
Usually not appropriate
Scenario Scenario ID Procedure Adult RRL Peds RRL Appropriateness Category
Postproctectomy with anastomosis, complication suspected, initial imaging 3194193
MRI pelvis without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT abdomen and pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
Fluoroscopy contrast enema
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
MRI pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT abdomen and pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
CT pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
US pelvis transrectal
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
Radiography abdomen and pelvis
1-10 mSv
☢☢☢ 		0.3-3 mSv [ped]
☢☢☢ 		Usually not appropriate
CT abdomen and pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		10-30 mSv [ped]
☢☢☢☢☢ 		Usually not appropriate
CT pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Colectomy with anastomosis, complication suspected, initial imaging. 3194195
MRI pelvis without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT abdomen and pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
Fluoroscopy contrast enema
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
MRI pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT abdomen and pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
CT pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
US pelvis transrectal
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
Radiography abdomen and pelvis
1-10 mSv
☢☢☢ 		0.3-3 mSv [ped]
☢☢☢ 		Usually not appropriate
CT abdomen and pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		10-30 mSv [ped]
☢☢☢☢☢ 		Usually not appropriate
CT pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
Coloproctectomy with anastomosis, complication suspected, initial imaging. 3194194
MRI pelvis without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
CT abdomen and pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
Fluoroscopy contrast enema
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
MRI pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		May be appropriate
CT abdomen and pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
CT pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
US pelvis transrectal
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
Radiography abdomen and pelvis
1-10 mSv
☢☢☢ 		0.3-3 mSv [ped]
☢☢☢ 		Usually not appropriate
CT abdomen and pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		10-30 mSv [ped]
☢☢☢☢☢ 		Usually not appropriate
CT pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
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