Caution Urged on Tests Using Radiation

People should avoid some imaging tests unless they’re absolutely needed, the American Heart Association says. That’s because the tests use radiation. The levels are low, but still could increase the risk of cancer. The group urged caution for X-ray tests and nuclear medicine studies. X-rays are used in computed tomography (CT) scans and fluoroscope (video) tests such as angiograms. These tests should be used only after a close look at their potential benefits. Certain tests should not be used in people at low risk of heart disease who don’t have symptoms. The new statement was published in the journal Circulation. HealthDay News wrote about it February 2.