Preparation
This painless test examines the calcium buildup in your coronary arteries. Calcium is one of several substances that can cause atherosclerosis, which can lead to coronary artery disease. This test produces a calcium score. The higher your score, the higher your risk for future heart problems. By comparing old scores to new scores, the coronary artery CT scan can also evaluate the effectiveness of certain heart treatments. This test requires no special preparation.

Test
During this exam, which takes about 15 minutes, you'll lie on an examination table, while a computed axial tomography (CAT or CT) scanner gathers images of your heart. You'll have to hold your breath for a few seconds at certain points during the test. After he receives the test results, Dr. Moore will discuss your score with you, and explain any necessary therapies.