The risk of cancer associated with popular CT scans appears to be greater than previously believed, according to two new studies published Monday in the Archives of Internal Medicine.
As for using radiology in mass screening - forget it
Overuse of radiation-based tests is a concern when they are performed to diagnose patients who have a known abnormality. But the concern is even greater when they are performed for screening purposes, said Amy Berrington, an investigator at the National Cancer Institute and an author on both papers. "You're exposing a lot of healthy people" to radiation," she said.By comparison a simple blood test is positively benign.
