CT (computed tomography), sometimes called CAT scan, uses special x-ray equipment to obtain image data from different angles around the body, and then uses computer processing of the information to demonstrate a cross-section of body tissues and organs. CT imaging is particularly useful because it can demonstrate several types of tissue -- bone, soft tissue, and blood vessels -- with great clarity. Abdominal scans often require drinking contrast - an oral liquid that better defines certain body structures - if your exam requires this, the hostess will provide you with the contrast to drink while you are waiting. The technologist begins by positioning you on the CT table. Your body may be supported by pillows to help hold you still and in the proper position during the scan. As the study proceeds, the table will move slowly into the CT scanner "donut". Depending on the area of the body being examined, the increments of movement may be so small that they are almost undetectable, or you may feel the sensation of motion.
A CT examination often requires the use of different contrast agents to enhance the visibility of certain tissues or blood vessels. When the exam is over, you may be asked to wait until the technologist or radiologist reviews the images. Your results will generally be available to you in approximately 1-2 days. | 
