American College of Radiology
ACR Appropriateness Criteria®

Suspected Liver Metastases

Variant 1: Suspected liver metastases. Initial imaging test following detection of primary tumor.
Procedure Appropriateness Category SOE Adult RRL Peds RRL Rating Median Final Tabulations
1 2 3 4 5 6 7 8 9
CT abdomen with IV contrast Usually appropriate ☢☢☢ 1-10 mSv ☢☢☢☢ 3-10 mSv [ped] 9 n/a 0 0 0 0 0 0 0 0 0
MRI abdomen without and with IV contrast Usually appropriate O 0 mSv O 0 mSv [ped] 8 n/a 0 0 0 0 0 0 0 0 0
FDG-PET/CT skull base to mid-thigh May be appropriate ☢☢☢☢ 10-30 mSv ☢☢☢☢☢ 10-30 mSv [ped] 5 n/a 0 0 0 0 0 0 0 0 0
MRI abdomen without IV contrast May be appropriate O 0 mSv O 0 mSv [ped] 5 n/a 0 0 0 0 0 0 0 0 0
CT abdomen without and with IV contrast May be appropriate ☢☢☢☢ 10-30 mSv ☢☢☢☢☢ 10-30 mSv [ped] 5 n/a 0 0 0 0 0 0 0 0 0
In-111 somatostatin receptor scintigraphy May be appropriate ☢☢☢☢ 10-30 mSv 5 n/a 0 0 0 0 0 0 0 0 0
CT abdomen without IV contrast May be appropriate ☢☢☢ 1-10 mSv ☢☢☢☢ 3-10 mSv [ped] 4 n/a 0 0 0 0 0 0 0 0 0
US abdomen May be appropriate O 0 mSv O 0 mSv [ped] 4 n/a 0 0 0 0 0 0 0 0 0
Variant 2: Suspected liver metastases. Surveillance following treatment of primary tumor.
Procedure Appropriateness Category SOE Adult RRL Peds RRL Rating Median Final Tabulations
1 2 3 4 5 6 7 8 9
CT abdomen with IV contrast Usually appropriate ☢☢☢ 1-10 mSv ☢☢☢☢ 3-10 mSv [ped] 8 n/a 0 0 0 0 0 0 0 0 0
MRI abdomen without and with IV contrast May be appropriate O 0 mSv O 0 mSv [ped] 6 n/a 0 0 0 0 0 0 0 0 0
FDG-PET/CT skull base to mid-thigh May be appropriate ☢☢☢☢ 10-30 mSv ☢☢☢☢☢ 10-30 mSv [ped] 5 n/a 0 0 0 0 0 0 0 0 0
MRI abdomen without IV contrast May be appropriate O 0 mSv O 0 mSv [ped] 5 n/a 0 0 0 0 0 0 0 0 0
CT abdomen without and with IV contrast May be appropriate ☢☢☢☢ 10-30 mSv ☢☢☢☢☢ 10-30 mSv [ped] 5 n/a 0 0 0 0 0 0 0 0 0
In-111 somatostatin receptor scintigraphy May be appropriate ☢☢☢☢ 10-30 mSv 5 n/a 0 0 0 0 0 0 0 0 0
CT abdomen without IV contrast May be appropriate ☢☢☢ 1-10 mSv ☢☢☢☢ 3-10 mSv [ped] 4 n/a 0 0 0 0 0 0 0 0 0
US abdomen May be appropriate O 0 mSv O 0 mSv [ped] 4 n/a 0 0 0 0 0 0 0 0 0
Variant 3: Presurgical assessment of liver metastases.
Procedure Appropriateness Category SOE Adult RRL Peds RRL Rating Median Final Tabulations
1 2 3 4 5 6 7 8 9
MRI abdomen without and with IV contrast Usually appropriate O 0 mSv O 0 mSv [ped] 9 n/a 0 0 0 0 0 0 0 0 0
CT abdomen with IV contrast Usually appropriate ☢☢☢ 1-10 mSv ☢☢☢☢ 3-10 mSv [ped] 8 n/a 0 0 0 0 0 0 0 0 0
US abdomen intraoperative Usually appropriate O 0 mSv O 0 mSv [ped] 8 n/a 0 0 0 0 0 0 0 0 0
MRI abdomen without IV contrast May be appropriate O 0 mSv O 0 mSv [ped] 6 n/a 0 0 0 0 0 0 0 0 0
FDG-PET/CT skull base to mid-thigh May be appropriate ☢☢☢☢ 10-30 mSv ☢☢☢☢☢ 10-30 mSv [ped] 6 n/a 0 0 0 0 0 0 0 0 0
CT abdomen without and with IV contrast May be appropriate ☢☢☢☢ 10-30 mSv ☢☢☢☢☢ 10-30 mSv [ped] 5 n/a 0 0 0 0 0 0 0 0 0
CT abdomen without IV contrast Usually not appropriate ☢☢☢ 1-10 mSv ☢☢☢☢ 3-10 mSv [ped] 3 n/a 0 0 0 0 0 0 0 0 0
US abdomen Usually not appropriate O 0 mSv O 0 mSv [ped] 3 n/a 0 0 0 0 0 0 0 0 0
Please refer to the supporting documentation for a more complete discussion of the concepts and their definitions below.
Final Tabulations:
A histogram of the number of panel members who rated the recommendation as noted in the column heading (ie, 1, 2, 3, …etc.)
Disagree:
The variation of the individual ratings from the median rating indicates panel disagreement on the final recommendation.
References:
Lists the references associated with the recommendation
SQ:
Study Quality (1, 2, 3, 4, Good M or Inadequate M) of the references listed.
RRL:
Information on the Relative Radiation Level (RRL) designations can be found here.