CT Scans—With Radiation and Cancer Risk—Rose in Children

Use of computed tomography (CT) scans—and thus exposure to ionizing radiation—increased over 15 years in children at a set of nonprofit health care delivery systems in a new study. But currently available strategies could greatly reduce this cancer risk, according to the HMORN Cancer Research Network study, published in JAMA Pediatrics.

Led by Diana L. Miglioretti, Ph.D., and Rebecca Smith-Bindman, M.D., the study also documented substantial variation in the radiation doses that were used in CT scans.