A new study raises concerns about cancer risks associated with radiation exposure from CT scans.
A report in the New England Journal of Medicine says a study of atomic bomb survivors gives us a better estimate now of the radiation risks from CT Scans. The study estimates that one and half to two percent of cancers in the U.S. may have been caused by radiation exposure from a CT Scan. Researchers say most scans do more good than harm.
The study points to reasons to use this technology only when absolutely necessary. It is estimated 62 million CT Scans are done in the U.S. each year, including four million done on children. Experts say close to one-third of CT Scans may not be justified and an ultrasound could make the same diagnosis.