February 22, 2017

CT Scans in U.S. Do Not Use More Radiation Than in Other Nations

Using data from over 13 million exams collected in 2014 through the CT Dose Index Registry, the American College of Radiology (ACR) developed patient size specific diagnostic reference levels (DRLs) for the 10 most common adult computed tomography (CT) exams performed in the United States. The new DRLs show that examination exposures to the U.S. adult population are generally not higher than those in other countries. DRLs are benchmark radiation dose levels that facilities can use to determine if they need to take steps to further optimize dose to their patients. Results of the two-year study, led by Kalpana M. Kanal, PhD, were recently published online in Radiology.