Report Raises Questions About Safety of CT Scans

In a report in this week's New England Journal of Medicine, researchers at Columbia University say that doctors are over-proscribing CT scans. They warn that the scans, which deliver radiation doses 50 to 200 times higher than most X-rays, could lead to cancer.

Other experts counter that the concern is exaggerated, and worry that patients will be scared away from having necessary scans.



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