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What do I need to know about a CT scan?
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A CT scan is an X-ray exam that uses computer technology to create cross-sectional images of your body. It can be used to diagnose and assess many medical conditions, including tumors, strokes, heart disease, and infections. The test involves lying still on a table while the machine rotates around you, taking multiple X-rays from different angles. You will then be asked to hold your breath for several seconds during each image.