How is a CT scan performed?
(A) The technologist begins by positioning you on the CT table. Your body may be supported by pillows to help you hold still in the proper position during the scan. As the study proceeds, the table will move slowly into the CT scanner. Depending on the part of the body being examined, the you may slide into the opening of the CT scanner head-first or feet-first. Certain examinations require you to hold your breath during the scan. These instructions will be explained by the technologist and you will be told the exact time in which to hold your breath. Some CT examinations often require the use of different contrast materials to enhance the visibility of certain tissues or blood vessels. The contrast material may be swallowed or injected through an IV directly into the blood stream. The ordering physician will determine whether your exam requires any type of contrast material.
