Andrew Maidment, PhD, an associate professor of Radiology and chief of the Physics Section, commented on a new study in JAMA pediatrics that found an increased use of CT scans in children could be putting them at a higher risk for cancer later in life because of the radiation exposure. But how much of a higher risk? The study found that an additional 4,870 cancers could be traced to CT scan radiation absorbed by children. That amounts to approximately one cancer in 1,000 people, Maidment told NBCNews.com. To put that number in perspective, he said, the lifetime risk of getting cancer is 448 in 1,000. So, if the model is right, the added risk due CT radiation exposure would bump the number up from 448 to 449. Even so, Maidment said, parents should talk to their children’s doctors and make sure a CT is necessary and that no other scanning method will do.
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