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The information contained on this page is provided as general health information and is not intended to substitute as medical advice and direction from your physician or health care provider. Please direct any questions related to your health care provider. In an emergency, call 9-1-1 or go to the nearest emergency center.


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.