CT
Computerized Tomography (CT) is a special kind of x-ray study that can produce computer images of a part of the body. An x-ray tube rotates around the body scanning it with x-rays. Then a computer uses readings taken from those x-rays to make an image on a video screen. CT scans help detect conditions that regular x-ray studies can't including tumors and blood clots. CT scans also help check progress during or after treatment. The procedure is relatively safe and painless and can often replace other diagnostic procedures such as exploratory surgery.
What should I do to prepare for the exam?
You may need to avoid food or fluids for 5 to 8 hours before the scan if a contrast medium will be used. This substance makes some conditions more visible. Please notify our staff if you have any allergies, particularly to iodine. Some people are allergic to certain contrast mediums. Wear loose, comfortable clothing and remove jewelry, hairpins, eyeglasses, dentures, etc. before a head scan. You may need to change into a smock for a body scan since zippers and snaps can interfere with the scan.
How Much Time Should I Allow?
The exam may take from 10 minutes to an hour and a half depending on the type of test and whether a contrast medium is used.
What Can I Expect?
If a contrast medium is used, this may be administered by mouth, by injection or through an IV line.
The technologist will help position you on the examination table. For a head scan, the technologist will comfortably secure your head with a snap.
You will be moved into the scanner. The technologist stays in a nearby room to control the procedure but they will still be able to hear and see you. Relax and hold still. For best results, it's very important that you don't move during the scan.
During the scan you will hear the motors. You will be moved slightly after each scan, but you may not even notice the change. You may be asked to hold your breath for a few seconds.