WHAT IS COMPUTED TOMOGRAPHY (CT) AND HOW DOES IT WORK? back to top
A Computed Tomography (CT) scan is a precise, simple and noninvasive
examination that creates a cross-sectional image of a specific anatomical
part of the body. A thin beam of x-rays is read and recorded by an electronic
detector, then transferred into a computer.
The computer constructs an image based on the data, which is then transferred
to film. Contrast media, commonly referred to as "dye" or barium, is sometimes
given, intravenously, orally, or rectally before and/or during certain scans to
assist in viewing a particular area.
IS CT FOR EVERYONE? back to top
Although CT is an effective diagnostic tool, certain medical conditions may exclude its
use or use of contrast media. Please inform your physician and our clinical personnel
at the time of scheduling if the following applies to you:
- Prior allergy to iodine or contrast media injection
- Diabetes or Kidney problems
- Breast feeding or pregnancy
It is very important that if you are pregnant or breast feeding that you inform
your physician and the center personnel prior to your procedure.
HOW DO I PREPARE FOR THE CT PROCEDURE? back to top
- You will receive a phone call from our staff confirming your appointment. At this time you may be informed of any specific procedure preparations.
- We request that you arrive 15-30 minutes prior to your scheduled procedure time to complete paperwork and to change clothes if necessary. If your CT is gastrointestinal related, you will be instructed by the scheduling staff to arrive 1 hour prior to your procedure to begin drinking a barium contrast material that is necessary for the CT procedure.
- Please wear loose-fitting clothes without zippers or snaps; metal objects create artifacts on the images. You may be requested to change into a clinic gown.
- Please bring the written prescription your physician gave you for this procedure.
- If contrast will be used, do not consume food or beverages four hours prior to the procedure.
- You should inform your physician or a center staff member if you are taking GLUCOPHAGE (METFORMIN) OR GLUCOVANCE (GLYBURIDE/METFORMIN) for a diabetic condition.
- We strongly encourage you to ask questions and discuss any concerns you may have prior to your procedure. We strongly believe that communication with our patients is an important part of the service we provide.
WHAT SHOULD I EXPECT DURING THE CT PROCEDURE? back to top
- You may be asked to change into a clinic gown and escorted to the CT room.
- A CT technologist will assist you on to the padded exam table where you will lie during the procedure.
- The area of interest will be positioned in the middle of a large, doughnut-shaped scanner ring or gantry. The scanner is not enclosed; thus claustrophobia usually is not an issue.
- The CT technologist will be in constant communication with you during the procedure through a two-way intercom.
- Please pay close attention to the instructions given and refrain from any unnecessary movement. Body movement may cause the images to blur, thus causing portions of the procedure to be repeated.
- The table will be moving in small increments. You will feel this slight movement and hear a low noise. The noise is due to the x-ray device rotating around you and is perfectly normal.
- For your comfort, blankets and/or pillows will be provided upon request. The CT exam room is typically cool in order to ensure that the computer system operates properly.
- Our goal is to provide you with a pleasant and comfortable CT procedure. If you are uncomfortable in any way, please inform your technologist.
HOW LONG WILL THE CT PROCEDURE TAKE? back to top
The length of the examination will vary from ten minutes to forty-five
minutes depending upon the specific procedure requested by your physician. Your
cooperation will expedite the procedure process.
WHEN DO I GET MY CT RESULTS? back to top
Our certified technologist will prepare your CT Images for the radiologist to
evaluate. The radiologist will interpret your results and dictate a written
report, which will be forwarded to your physician within 72 hours of completion
of your procedure. Your physician will convey the results of the procedure to you.
