Coronary angiogram is a dye test used to detect
heart problems. A long, thin flexible tube called a catheter is inserted
into your wrist or your groin and guided up to your heart. Once in
position, a dye is injected and x-ray pictures are taken. The special
dye allows the x-rays to capture pictures of your coronary arteries and
to highlight where any blockages or narrowed spots may be. This test can
also look at the condition of your heart valves and your heart muscle.