CT stands for computerized tomography. In this procedure, a thin
X-ray beam is rotated around the area of the body to be
visualized. Using complicated mathematical processes called
algorithms, the computer is able to generate a 3-D image of a
section through the body. CT scans are very detailed and provide
excellent information for the physician. However, because CT
scans expose patients to radiation, they must be used with care.
Harvey Simon, MD, Editor-in-Chief, Associate Professor of
Medicine, Harvard Medical School; Physician, Massachusetts
General Hospital. The information provided herein should not be
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