A coronary artery calcium scan (CAC) is a special computerized tomography (CT) scan of the heart. It looks for calcium deposits in the heart arteries. A buildup of calcium can narrow the arteries and reduce blood flow to the heart. A coronary calcium scan may show coronary artery disease before you have symptoms. Coronary calcium scan results can help determine the risk of heart attacks or strokes. This $239 fee ONLY covers the medical order, external scheduling @ the imaging center and a remote review of results.