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New study, radiation linked to cancer risk

A new study shows that exposure to low doses of radiation from heart scans may be linked to an increase in cancer risk.

February 8, 2011 12:00:00 AM PST
A new study shows that exposure to low doses of radiation from heart scans may be linked to an increase in cancer risk.

Researchers found that there is a small risk of cancer for every unit of radiation. They say the vast majority of cancers are not related to radiation from imaging. And in most cases, cancer risks are outweighed by the benefits of detecting complications after a heart attack.

Doctors say the findings shouldn't make people afraid to get heart scans.