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An Angiogram is an imaging procedure, like a special X-Ray, that is used to examine blood vessels, especially arteries (arteriography). Angiograms can help doctors diagnose blood vessel disorders and are often performed before surgery on a blood vessel to locate the sites of blockages, the extent of blockages, or other problems. Before an angiogram, a dye is injected through a thin, flexible tube called a catheter, and inserted through a small incision into an artery in the groin, an artery in the elbow, or one of the arteries in the neck. A series of X-ray pictures is then taken of the arteries in order to detect any abnormalities.  When the veins are studied, the procedure is called a venogram.

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