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Study: CT scans may help the healthy gauge heart risk
USA Today

A new study suggests CT heart scans may help millions of seemingly healthy people get a better fix on their heart risk, but critics say the price may be a higher cancer risk. Research shows that scanning the coronary arteries for calcium deposits offers a revealing window into how many blockages exist in vessels supplying the heart. But CT scans — sequential, rapid-fire X-rays — also deliver radiation to vital organs and, over time, boost a person’s risk of cancer.