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Home Staging and Disease Monitoring of Rectal Cancer
Variants
Scenario Scenario ID Procedure Adult RRL Peds RRL Appropriateness Category
Rectal cancer, locoregional staging 3199440
MRI pelvis without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
FDG-PET/MRI skull base to mid-thigh
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
US pelvis transrectal
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT abdomen and pelvis with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT abdomen and pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT abdomen and pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		10-30 mSv [ped]
☢☢☢☢☢ 		Usually not appropriate
Scenario Scenario ID Procedure Adult RRL Peds RRL Appropriateness Category
Rectal cancer, staging for distant mets 3199441
MRI abdomen and 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 chest with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT chest without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
FDG-PET/MRI skull base to mid-thigh
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
MRI abdomen and pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT abdomen and pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT chest without and with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT abdomen and pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		10-30 mSv [ped]
☢☢☢☢☢ 		Usually not appropriate
Scenario Scenario ID Procedure Adult RRL Peds RRL Appropriateness Category
Rectal cancer, post neoadjuvant therapy, locoregional restaging during wait and watch 3199442
MRI pelvis without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI pelvis without 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]
☢☢☢☢ 		May be appropriate
FDG-PET/MRI skull base to mid-thigh
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
US pelvis transrectal
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT abdomen and pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT abdomen and pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		10-30 mSv [ped]
☢☢☢☢☢ 		Usually not appropriate
Rectal cancer, post neoadjuvant therapy, locoregional restaging 3199457
MRI pelvis without and with IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually appropriate
MRI pelvis without 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]
☢☢☢☢ 		May be appropriate
FDG-PET/MRI skull base to mid-thigh
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
US pelvis transrectal
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT abdomen and pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT abdomen and pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		10-30 mSv [ped]
☢☢☢☢☢ 		Usually not appropriate
Scenario Scenario ID Procedure Adult RRL Peds RRL Appropriateness Category
Rectal cancer, systemic disease monitoring, after curative resection, follow-up imaging 3199444
MRI abdomen and 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 chest with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT chest without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
FDG-PET/MRI skull base to mid-thigh
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
MRI abdomen and pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT abdomen and pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT chest without and with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT abdomen and pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		10-30 mSv [ped]
☢☢☢☢☢ 		Usually not appropriate
Rectal cancer, systemic disease monitoring, during watch and wait, follow-up imaging 3199445
MRI abdomen and 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 chest with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT chest without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
FDG-PET/MRI skull base to mid-thigh
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
MRI abdomen and pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT abdomen and pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT chest without and with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT abdomen and pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		10-30 mSv [ped]
☢☢☢☢☢ 		Usually not appropriate
Rectal cancer, systemic disease monitoring, during palliation, follow-up imaging 3199446
MRI abdomen and 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 chest with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
CT chest without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually appropriate
FDG-PET/MRI skull base to mid-thigh
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
FDG-PET/CT skull base to mid-thigh
10-30 mSv
☢☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		May be appropriate
MRI abdomen and pelvis without IV contrast
0 mSv
O 		0 mSv [ped]
O 		Usually not appropriate
CT abdomen and pelvis without IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT chest without and with IV contrast
1-10 mSv
☢☢☢ 		3-10 mSv [ped]
☢☢☢☢ 		Usually not appropriate
CT abdomen and pelvis without and with IV contrast
10-30 mSv
☢☢☢☢ 		10-30 mSv [ped]
☢☢☢☢☢ 		Usually not appropriate
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