Merck Manual

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Coronary Angiography: Fluoroscopy
Coronary Angiography: Fluoroscopy
Coronary Angiography: Fluoroscopy

In coronary angiography, fluoroscopy (a continuous x-ray procedure) is used to visualize the coronary arteries, which supply blood to the heart. A radiopaque contrast agent is injected through a catheter into the coronary arteries, which are seen as black strands on the surface of the beating heart.

Video from Center for Biomedical Communications, College of Physicians and Surgeons, Columbia University.