Coronary Calcium Scan
Coronary calcium scans use a special X-ray test called computed tomography (CT) to check for the buildup of calcium in plaque on the walls of the arteries of the heart (coronary arteries ). This test is used to check for heart disease in an early stage and to determine how severe it is. Coronary calcium scans are also called cardiac calcium scoring.
The coronary arteries supply blood to the heart. Normally, the coronary arteries do not contain calcium. Calcium in the coronary arteries may be a sign of coronary artery disease (CAD).
A CT scan takes pictures of the heart in thin sections. The pictures are recorded in a computer and can be saved for more study or printed out as photographs.
- Heart Disease Risk: Should I Have a Coronary Calcium Scan?
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Why It Is Done
Your doctor may want you to have a coronary calcium scan if it can help you and your doctor make decisions about how to lower your risk for heart disease, heart attack, and stroke.
This test might be most helpful for people who do not have heart disease but who are at medium risk for heart disease. Your doctor can help you know your risk of heart disease, heart attack, and stroke. Your doctor will look at things that put you at risk, including blood pressure, cholesterol, diabetes, and your age, sex, and race.
A coronary calcium scan is not advised for routine screening for coronary artery disease.1 This test may not tell your doctor any more about your risk for heart disease than your risk factors do.
This screening test is not for you if:
- You don't have any risk factors for heart disease, so you have a low risk of a heart attack and stroke.
- You are at high risk for heart disease or you were diagnosed with heart disease. (You should already be under a doctor's care.)
This test may not be right for you if you are a man younger than 40 or a woman younger than 50. This is because younger people typically do not have much calcium buildup in their arteries yet.