If you think you might be pregnant, make sure to tell your doctor and technician. While this may seem similar to an MRI, it's slightly different in that a CT scanner is open and less noisy, and the CT scan takes much less time.ĭepending on where on your body the scan is being done, you may need to remove some of your clothing and wear a gown, and take off your glasses, and any metal objects. You will be asked to remain still and hold your breath for a few seconds. What to Expect?Ī CT technician will instruct you to lie flat on the CT scan table, which moves quickly through a donut-shaped device called a scanner. Although the CT scan cannot give a definitive diagnosis, it is helpful in the evaluation of lung diseases and conditions such as pneumonia, cancer, blood clots or damage caused by smoking. Many times, a CT scan is ordered by a doctor after noticing something abnormal in an X-ray. A computer collects the pictures and puts them in sequence for your doctor.Ĭompared with traditional X-rays, CT scans create two-dimensional, cross-sectional images that provide more information.
Computed tomography, more commonly called a cat scan or CT scan, is a diagnostic test that uses a series of computerized views taken from different angles to create detailed internal pictures of your body.
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