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Procedure, part 2

Procedure, part 2
Once the catheter is placed in the opening, or ostium, of one of the coronary arteries, the doctor injects dye and takes a series of x-rays of the artery. Areas of narrowing or blockage in the coronary artery can be seen on the x-rays.

Review Date: 1/25/2013
Reviewed By: Harvey Simon, MD, Editor-in-Chief, Associate Professor of Medicine, Harvard Medical School; Senior Physician, Massachusetts General Hospital.
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