CHICAGO (Reuters) - Using a heart scan in the emergency room to rule out heart attacks and other problems in low-risk patients with chest pain can save hospitals billions of dollars, researchers said ...

A heart CT scan uses X-rays to create an image of the heart and blood vessels. Healthcare professionals may also refer to it as cardiac CT angiography. A CT scan is a noninvasive imaging procedure.

Share on Pinterest A new study found that CT scans do a better job than genetic testing at determining heart disease risk when conventional factors are also taken into account. Reza Estakhrian/Getty ...