Coronary angiography is a test performed to evaluate any blockage in the arteries supplying blood to the heart. During a Coronary angiography, A contrast dye is injected into the arteries through a plastic tube known as a catheter. This contrast agent helps produce clearer images to help the doctor examine the blood flow through the heart.
Coronary angiography is performed when either of the following conditions exists:
Procedure for coronary angiography starts by inserting a thin tube called the catheter into a blood vessel up to the heart and the coronary arteries. A contrast dye is injected through the catheter and X-ray images are taken of the same. The dye helps in showing the blood vessels it travels through, Highlighting any blocked or narrowed vessels. During the procedure, the target area through which the catheter is inserted is made numb to avoid any discomfort.