CT Scan- Computed Tomography

What is an CAT Scan?

A CT scan, also referred to as a CAT scan, is an imaging technique that combines x-rays and computers to produce a highly detailed image of the body. CT is primarily utilized to examine the brain, chest, abdomen, pelvis, and sinuses.

During a CT scan small amounts of X-rays are projected through the body. A computer will process the x-ray images and convert the information into images that actually show very small sections or "slices" of the body part being examined. This allows the radiologist to carefully assess the body's anatomy. A CT scanner can produce extremely precise images of the body very quickly.

Your CT Experience

The technologist, who is an expert in the use of this specialized equipment, will assist you onto the CT examination table and position you for the scan. A loose band may be used to keep you in position, since any movement can distort the images. In many instances, it is necessary to administer a contrast medium to highlight certain body organs. Usually it is given orally, injected into a vein, or both. Once the scan begins, you will feel the table move through the scanner. You will also hear a whirring noise or a high-pitched beep. These sounds are a normal part of the machine operation. In order to obtain the best possible images, the technologist may ask you to hold your breath for a short period of time. The examination is quite painless and should only take about 30 minutes.

What happens after I am finished?

A board certified radiologist will study the images and send a report of the results to your physician. All urgent findings will be communicated immediately. Your doctor will contact you to discuss the results of the CT scan.

Related Computed Tomography Links

• Imaginis - A very informative site about CT, offering an overview, history and frequently asked questions.