DOTmed October 6, 2025
A study of nearly 4 million children and adolescents suggests that approximately 10% of pediatric blood and bone marrow cancers may be tied to radiation exposure from medical imaging procedures.
Published September 17 in The New England Journal of Medicine, the study was led by researchers from UC San Francisco and UC Davis and is considered the most comprehensive North American analysis of its kind. Investigators analyzed imaging histories for children born between 1996 and 2016 across six U.S. health systems and one in Ontario, Canada.
The findings point to a dose-dependent relationship between radiation from imaging and the risk of hematologic malignancies, including leukemia and lymphoma. Among children who underwent head CT scans, researchers attributed roughly 25% of subsequent...
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