X-ray images are taken while the dye flows through the artery, and the doctor can monitor the images on a screen. Sometimes the X-rays are taken so rapidly that they form a "movie" of the dye's movement. The X-rays show where the artery is blocked or narrowed and the extent of the blockage. If the angiogram doesn't reveal any blockages, the catheter is removed.
An angiogram takes 30-60 minutes and may be performed as an outpatient procedure.
When Arteries Become Blocked (VIDEO)
Watch an Angioplasty Procedure (VIDEO)
Blood Supply to the Heart
Atherosclerosis & Your Heart
How Angioplasty Works
Angioplasty Risks & Complications
Preventing an Angioplasty
Related Health Centers:
Aneurysm and Stent, Angioplasty, Arrhythmia, Cardiovascular Continuum, Cholesterol and Atherosclerosis, Coronary Bypass Surgery, Heart Attack and Angina, Hypertension, Stroke, Thrombosis and Embolism, Women and Cardiovascular Health