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2w ago

Study Projects Over 100,000 Future Cancer Cases from 2023 CT Scans in the U.S.

Modeling study highlights potential long-term risks of CT scan radiation, urging balance between clinical necessity and minimizing exposure.

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Does the US have a CT overuse problem? Scientists believe so
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Overview

  • A JAMA Internal Medicine study estimates over 100,000 future cancer cases linked to 93 million CT scans performed in 2023, representing 5% of new annual diagnoses.
  • The projections are based on statistical modeling, not direct clinical evidence, and emphasize theoretical risks from ionizing radiation exposure.
  • CT scans remain indispensable for diagnosing critical conditions, reducing invasive procedures, and saving lives in emergencies despite potential risks.
  • Experts advocate for reducing unnecessary scans, adopting low-dose protocols, and considering non-ionizing alternatives like MRI and ultrasound, particularly for younger patients.
  • U.S. CT scan usage has risen 30% since 2007, with calls for improved regulation and adherence to international standards to minimize radiation exposure.