American College of Radiology

Procedure Appropriateness Category Relative Radiation Level Radiography area of interest Usually Appropriate Varies CT area of interest with IV contrast Usually Not Appropriate Varies CT area of interest without and with IV contrast Usually Not Appropriate Varies CT area of interest without IV contrast Usually Not Appropriate Varies MRI area of interest without and with IV contrast Usually Not Appropriate O MRI area of interest without IV contrast Usually Not Appropriate O Bone scan area of interest Usually Not Appropriate ☢☢☢ US area of interest Usually Not Appropriate O