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SERVICES
- CT scan
CT scan or "CAT" scan as it
is referred to stands for the computerized tomography, which refers
to the way this exam is performed. In actuality, a CT scan is an x-ray
procedure enhanced by a computer. This results in a three-dimensonal
view (referred to as a "slice") of a particular part of
your body.
What Will The Exam Be Like?
 You
will meet your CT technologist whose primary concern is your care
and well-being. This technologist has completed a rigorous course
of education and training, and works under close supervision of the
radiologist to assure the most accurate results from your examination.
Prior to the start of your CT exam the technologist will explain the
procedure to you. This is done for two reasons: to solicit your cooperation,
and to put your mind at ease as to what is taking place. It is in
your best interest to follow these instructions for the desired results.
Next, you will be gently positioned and secured on the scan table.
It is important that you be secured, because even the slightest movement
during the split seconds of imaging can blur the picture and result
in the need for repeated scans.
Then, you will be moved into the scanner, which is a small, air-conditioned
chamber. The technologist will have you in full view at all times
and be in constant communication via two-way microphones. During this
brief time, you will hear the humming of the equipment as it produces
the images. You may also feel slight movement of the table as it prepares
for the next scan.
A contrast media maybe required. This is usually given by mouth or
injection. It is normal to feel a warm sensation as the dye makes
its way through your body. This substance is given to highlight various
body parts and is eliminated in a day or two.
 How
Long Does The Exam Take?
The exam usually takes from 30 to 60 minutes. This allows for preparation
as well as time for the computer to generate the image. Actual exposure
time is minimal.
Time may vary significantly depending on the nature of the study and
other factors.
How Will I Learn The Results?
The radiologist, a physician specialist, will study the results of
your exam and discus with your doctor, who will then consult with
you.
What Is a CT Scan?
CT stands for the computerized tomography, which refers to the way
this exam is performed. In actuality, a CT scan is an x-ray procedure
enhanced by a computer. This results in a three-dimensional view (referred
to as a "slice") of a particular part of your body.
During a routine x-ray, dense tissues can block other areas. Aided
by the computer, a CT scan is able to put together the different "slices"
and create a three-dimensional view, clearly showing both bone and
soft tissue.
Remember:
Tell your doctor or technologist, if you are:
. Pregnant or think you may be.
. Allergic to iodine or other materials.
. Undergoing radiation therapy.
You should also:
. Wear comfortable clothing and avoid wearing jewelry and eye make-up
- metallics may interfere with the accuracy of the film image.
Be sure to ask any questions relating to your examination. They will
help the evaluation. Questions You May Have:
This booklet is intended to serve as a simple guide. It can never
replace the conversations you have with your personal physician. It
is not a substitute for professional care.
Published for you by The St. John Companies Lock Box 800460, Santa
Clarita, CA, 91380
Phone Free: (800) 435-4242 . Fax Free: (800) 321-4409 CAT. NO. PM-CT
©1999 THE ST. JOHN COMPANIES
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