Coronary Artery Angiography

In a coronary angiogram, a catheter is inserted into an artery in the groin, arm, or neck and passed through blood vessels to the heart. A coronary angiogram can show blocked or narrowed blood vessels in the heart. A coronary angiogram is a procedure that uses X-rays to look at the blood vessels in your heart. Contrast medium injected into the coronary arteries using a small catheter allows your doctor to see  whether there is a blockage in the coronary arteries.