|
Computed Tomography (CT)
What is a CT exam?
Computed Tomography (CT) is an x-ray technique that uses a special scanner and computer to
create cross sectional images of parts of your body. These cross sectional images - or
"slices" - are free of the overlapping densities and shadows present on an ordinary x-ray.
Looking at the CT "slices" in sequence, your radiologist can create a three dimensional
image of the body structures being examined that shows these structures in great detail.
Our CT scanners use a process called "Spiral" or "Helical" scanning. This is a more rapid
method of scanning which makes the exam time shorter and in many cases improves image quality
by scanning large areas in a single breath-hold.
Some CT examinations require that you receive a special material called "Contrast Media". Some
types of contrast media are taken orally to delineate the stomach, small bowel and colon.
Other types are injected by vein to increase detail in blood vessels and most organs of the body.
In most cases you will be notified in advance if either type of contrast media will be used as
part of your CT scan.
Precautions and Contraindications to CT Examination
Pregnancy - Radiation is potentially dangerous to an unborn child. Tell your doctor, our
office staff, or the technologist if you are pregnant, or suspect that you may be pregnant.
Allergies to Contrast Media - Tell you doctor, our office staff or the technologist if you
have had a previous reaction to contrast injection.
Preparing for CT Examinations
Preparation requirements vary based on the examination to be performed and the physical
condition and age of the patient. Refer to the specific scan you are having. You will be
informed by our office about any specific preparations.
|
