CT Scans Linked to 103,000 Annual Cancer Cases in the US, Study Finds
- A UCSF study published April 14, 2025, in JAMA Internal Medicine, cautions against CT overuse.
- Increased CT scan usage since 2007 exposes more patients to cancer-causing ionizing radiation.
- Researchers analyzed 93 million CT scans from 61.5 million U.S. Patients in 2023.
- Smith-Bindman stated CT scans could pose a risk, comparable to alcohol and excess weight.
- An estimated 5% of all future cancer diagnoses may stem from CT scans if trends continue.
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Do CT Scans Cause Cancer? Study Finds Imaging May Fuel 1 in 20 U.S. Cases Each Year
Fact checked by Nick BlackmerSolskin / Getty ImagesComputed tomography, or CT scans, could cause 5% of U.S. cancers each year, a new study found.The X-rays expose people to ionizing radiation, which can cause DNA damage.Before getting a CT scan, experts recommend talking to your doctor about the benefits and risks of the imaging.Computed tomography (CT) scans are a pivotal part of U.S. medical care. These sophisticated X-rays give doctors detail…
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