Computed Tomography Angiogram (CT Angiogram)

A Reference computed tomography angiogram (CT angiogram) Opens New Window is a test that uses Reference X-rays Opens New Window to provide detailed pictures of the heart and the blood vessels that go to the heart, lung, brain, kidneys, head, neck, legs, and arms.

A CT angiogram can show whether a blood vessel is blocked, where the blockage is, and how big the blockage is. The test can also show whether there is a bulge (Reference aneurysm Opens New Window) or a buildup of fatty material called Reference plaque Opens New Window in a blood vessel.

During a CT angiogram, you lie on a table that passes through a doughnut-shaped opening in the scanner. A special dye (Reference contrast material Opens New Window) is put in a vein (Reference IV Opens New Window) in your arm or hand to make the blood vessels easier to see on the scan. If you are having a CT angiogram to look at your heart and the blood vessels that go to it (Reference coronary arteries Opens New Window), you may be given a medicine called a Reference beta-blocker Opens New Window to slow your heart rate during the test.

© 1995-2011, Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.

This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Reference Terms of Use. Reference How this information was developed to help you make better health decisions.