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Learn About Your CT
 CT, also known as CAT scanning, is an advanced x-ray
system that generates detailed cross-sectional images of the
body. Each image provides the visual equivalent of a bloodless
slice of the anatomy. When stacked together, these slices create
detailed studies of the organs as well as the head, spine, chest,
abdomen, and many other areas of the body.
CT scans can be done even if you have a
pacemaker or aneurysm clip -- devices implanted in your chest to help
regulate your heartbeat. However, if you're pregnant or suspect you
might be, tell your doctor. Your doctor may suggest postponing the
procedure or choose an alternative exam that doesn't involve radiation,
such as an ultrasound or MRI.
Before Your Scan: Some CT scans are enhanced by the use
of IV or oral contrast. If your exam requires contrast, you
should not eat anything for six hours prior to your appointment. In addition, please refrain from drinking anything within an hour of
your exam. You may be asked to wear a gown during your exam and
you will need to remove all jewelry, dentures, hearing aids, etc., that
might interfere with the scan
Time Required for Your Scan: CT exams generally last
15-30 minutes, however, if your scan requires you to drink oral
contrast prior to your exam, you will be asked to arrive 1 hour prior to
your scheduled appointment time.
Who Performs Your Scan: An ARRT Certified Radiologic
technologist will perform the exam
During Your Scan: As the scan begins, you will hear a
slight whirring sound from the CT machine. The technologist will
position you on a table within the scanner's doughnut-shaped ring, which
will move you through the machine for the exam. To produce the
clearest images possible, please lie still throughout the exam and
follow the breathing instructions given by your technologist over the
intercom.
After Your Scan: You may be asked to wait for a short
time after your exam while the radiologist reviews all the scans to
ensure that the needed information has been obtained. Occasionally, repeat or additional scans are required. Once it
is determined that your exam is complete, you may leave. The
radiologist will send a report to your physician, typically within 48
hours. If IV or oral contrast was used during your scan it is
best to drink plenty of fluids afterward to help eliminate it from
your body.
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