Computed tomography (CT) is a diagnostic procedure that uses special X-ray equipment to create cross-sectional pictures of your body. CT images are produced using X-ray technology and powerful computers.
The uses of CT include looking for
Signs of heart disease
During a CT scan, you lie still on a table. The table slowly passes through the center of a large X-ray machine. The test is painless. During some tests you receive a contrast dye, which makes parts of your body show up better in the image.
• Do not eat or drink anything, including water, for 4 hours before the
• You may take your medicines with sips of water.
During the Test
• If you are having an abdominal (stomach) or pelvic scan, you need to drink liquid dye. You drink the first part of the liquid when you arrive, more about 30 minutes later and the rest of the liquid just before your scan, about 1 hour later.