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CT Coronary Angiography (CTCA) is a non-invasive medical imaging technique that provides detailed images of the coronary arteries and blood vessels supplying the heart muscle with oxygen and nutrients.
What Is CT Coronary Angiography?
CT Coronary Angiography (CTCA) is a medical imaging technique that utilises computed tomography (CT) technology to produce detailed, three-dimensional images of the coronary arteries. These arteries supply blood to the heart muscle, and CTCA is employed to assess their structure and detect any abnormalities or blockages that may affect blood flow.
Who Needs CT Coronary Angiography?
CT Coronary Angiography is recommended for individuals with symptoms or risk factors for coronary artery disease, such as chest pain or shortness of breath. It helps assess the severity of coronary artery blockages and guides the need for medications or potential interventions.
How Do I Prepare For CT Coronary Angiography?
Discuss any medications you are taking, as adjustments may be needed, and inform them of allergies, particularly to iodine or contrast dye. Wear comfortable clothing, anticipating a potential change into a hospital gown. Remove metal objects and jewellery before arriving at the imaging facility, and ensure you arrive early for administrative processes. If pregnant or potentially pregnant, inform your doctor. Prior to the scan you may be given certain medicines to slow down the heart beat to allow for clearer images to be obtained during the scan.
What Happens During CT Coronary Angiography?
During a CT coronary angiography, you will lie on a table that slides into a CT scanner. A small tube (cannula) is inserted into one of the veins in your hand or arm for administration of contrast. Contrast dye is used to highlight blood vessels, and the scanner takes detailed X-ray images of the heart and coronary arteries. It’s essential to remain still during the scan; the procedure usually takes about 15 to 30 minutes. Afterwards, the images are analysed to assess the presence of any blockages or abnormalities in the coronary arteries.
What To Do After CT Coronary Angiography?
After CT coronary angiography, you will be given a follow-up appointment with your healthcare provider to discuss the results. Your doctor will provide insights into the health of your coronary arteries. Depending on the findings, they may recommend further tests, lifestyle changes, medications, or interventions to manage any identified issues.
What are the Risks of a CT Coronary Angiography?
CT coronary angiography is generally safe, but there are some potential risks to consider. The use of contrast dye may cause allergic reactions in some individuals, and those with kidney problems are at a slight risk of kidney injury from the dye. Additionally, there is some exposure to ionizing radiation (X-rays) during the procedure, and generally should be avoided in pregnant women.
