Greenville and Washington County CT Scanning
Computerized Tomography
Computerized Tomography (CT) scanning is an imaging technique that uses X-rays and computers to create clear images of the body’s internal structures. Unlike conventional X-rays, CT scanning does not create overlapping images. That means that it can create images of organs and bones without other structures getting in the way. For example, if your doctor needed an image of the lugs and took an X-ray, the image would be obscured by the rib. In CT scanning, however, a clear picture of the lungs behind the rib cage can be obtained.
- Preparing for your CT scan
There’s very little you need to do to prepare for your CT scan.
If you’re getting a CT scan of your chest or heart, you should stop drinking or eating anything containing caffeine several hours before your exam. If you are having a CT scan of the abdomen you should not eat or drink anything prior to the scan, usually nothing by mouth after midnight.
Be sure to wear comfortable clothing during the CT scan. Also, all jewelry and other metallic objects must be removed from the area being scanned. This includes metal that is often part of clothing, such as snaps, belts and underwire bras.
- Arriving for your appointment
You’ll need to arrive at least 30 minutes before your appointment time to check in and complete paperwork. If necessary, your IV (intravenous line) will also be started during this time.
It’s often necessary to use a special dye (contrast) to make a part of your body show up more clearly during the CT scan. If you need the dye, you may get it as something to drink and/or it might be administered through an IV.
- What happens during your CT scan
During the CT scan, you’ll lie on a special table. It will move you through the center of the doughnut-shaped CT scanner — but nothing will touch you. As you’re moved through the scanner, you’ll need to stay as still as possible. You may be asked to hold your breath for a few seconds as each scan is made.
Most CT scans take 15 to 20 minutes. You should plan for your entire visit to be at least 1½ hours. In some cases, it may take longer.
- What happens after your CT scan
After your CT scan, you’ll most likely be able to go back to your normal activities and diet. If you were given the contrast dye but didn’t drink the recommended amount of water before your CT scan, you should drink 64 ounces of water over a 12-hour period after the exam. However, do NOT do this if you have congestive heart failure or are on dialysis.