Computed Tomography Angiogram (CT Angiogram)
How To Prepare continued...
You may be asked not to eat or drink anything for several
hours before the test. Your doctor will let you know if there are certain foods
or liquids you should avoid.
Talk to your doctor about any concerns
you have regarding the need for the test, its risks, how it will be done, or
what the results will mean. To help you understand the importance of this test,
fill out the
medical test information form(What is a PDF document?).
How It Is Done
A CT angiogram is usually done by a
radiology technologist. The pictures are usually read
radiologist. But some other types of doctors may also
review the test results.
Before the test
- Take off any jewelry and any other metal
- Take off all or most of your clothes. You will be given a
gown to wear during the test.
During the test
- You will lie very still on a table that is
attached to the CT scanner.
- A dye (contrast material) will be put
in a vein in your arm or hand. If you are having a CT angiogram to look at your
heart and the blood vessels that go to it (coronary arteries), you may be given
a medicine called a beta-blocker to slow your heart rate during the
- The table will slide into the round opening of the scanner
and move slightly while the scanner takes pictures. You may hear a click or
buzz as the table and scanner move.
- The technologist may ask you to
hold your breath for a few seconds at a time.
- You may be alone in
the scanning room. But the technologist will watch you through a window. You
will be able to talk to him or her through an intercom.
A CT angiogram usually takes 30 to 60 minutes but could
take up to 2 hours.
After the test
Drink plenty of fluids for 24 hours after the test to help flush the dye
out of your body.