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What is a CT scan?
A CT scan (Computerized Axial Tomography) is a diagnostic test that combines the use of X-rays with computer technology. A series of X-ray beams from many different angles are used to create cross-sectional images of the patient’s body. These images are assembled in a computer into a three-dimensional picture that can display organs, bones and tissues in great detail. Because of the acquisition of an extremely large number of thin slices quickly obtained, this multi-slice detector system allows for multiplanar and 3D reconstruction of images on our computer workstations. This greatly aids the diagnosis of tumors, kidney stones, appendicitis, and coronary artery as well as other vascular calcifications.
The CT exam:
The screening is simple, painless and non-invasive, involving minimal radiation exposure. First, you will be asked to complete a brief risk factor questionnaire. Next, you will change into a gown. The radiology technologist, which is specially trained in imaging procedures, will help position you on the table of the CT scanner. If you are getting your heart scan, two EKG electrodes will be placed on the upper chest and two more on the upper abdomen. You will lie face up on the table as it automatically moves into the scanner. The scanner is open and not typically claustrophobic. While inside the scanner, you will be able to see outside surroundings. The technologist will speak to you from the control room where they can see you at all times.
The CT scan resembles a large ring or doughnut which rotates around your body as it sends and picks up x-rays, obtaining cross-sectional images. During the scanning process, the technologist will ask you to lie completely still, holding your breath for a short period to time while the images are taken. In just a few minutes, your exam is complete and you can return to your regular routine activities. After your study is completed, a board-certified radiologist will examine the images. If you had your heart scanned, the radiologist will calculate a coronary artery calcification score. A report will be sent to you within 48-hours. Patients are encouraged to discuss their results with their personal physician. |
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