A heart scan, also known as a coronary calcium scan or cardiac CT, is a non-invasive imaging test that uses computed tomography (CT)to capture detailed images of the heart. The primary purpose of this scan is to detect calcium deposits in the coronary arteries, which can be an early sign of coronary artery disease (CAD). By identifying these deposits, the scan helps assess the risk of heart attacks or other heart-related complications before symptoms arise. It is a valuable tool for individuals at risk of cardiovascular disease but may not yet show signs or symptoms.
This scan can be a proactive measure in managing heart health, especially for those with risk factors such as high cholesterol, high blood pressure, or a family history of heart disease.
A heart scan typically takes around 10 to 15 minutes to complete. The actual scanning process is quick, usually lasting just a few minutes, but you may need additional time for preparation and positioning before the scan. Since it is a non-invasive procedure, no recovery time is required, and you can resume normal activities immediately after the scan.
A heart scan is typically recommended for individuals who are at moderate risk of heart disease. This includes people with risk factors such as high cholesterol, high blood pressure, diabetes, or a family history of heart disease
In most cases, there is little preparation needed for a heart scan. You may be asked to avoid caffeine or smoking for a few hours before the scan to ensure accurate results. If your scan requires contrast dye, your doctor may advise you to fast for a few hours beforehand. It is also recommended to wear loose, comfortable clothing, and avoid jewellery or metal objects, which can interfere with the imaging process.
Yes, heart scans are generally safe. However, they do involve exposure to low levels of radiation, which is comparable to the radiation from several chest X-rays. While the risk of developing complications from this radiation is minimal, it should be considered, especially for patients who are not showing symptoms of heart disease. In symptomatic patients, the benefits of early detection far outweigh the potential risks.
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