What is the Difference Between Angiography and Angioplasty?

Medically Reviewed by Checkmark Medically Reviewed By: Dr. Sravanthi Sunkaraneni
How is angiography different from angioplasty?
Angiography is a diagnostic procedure performed to observe blood flow through blood vessels. As blood vessels are not normally visible, a dye is injected into the blood to visualise the blood flow and to identify narrowed or dilated blood vessels. An angioplasty is a therapeutic procedure that is performed to dilate narrowed blood vessels with or without placing a stent.

Angiography and angioplasty are diagnostic and treatment procedures for the heart. There are different medical procedures related to blood vessels. In case of a blockage in the blood vessels, a doctor may recommend these procedures to diagnose the exact location and treat it to avoid major surgery. In this article, we will discuss angiography and angioplasty and the difference between the two.

What is angiography?

Angiography is a medical imaging technique that produces scanned images of blood vessels. These scanned images are angiograms. Blood vessels do not show up in the regular imaging techniques. So, in angiography, the doctor injects a dye before starting the procedure. They do this to highlight the blood vessels in the angiogram.

What is angioplasty?

Angioplasty is a non-surgical procedure to open narrow or clogged arteries. It is a minimally safe procedure that can be performed immediately after angiography. Once finding the exact location of the blockage is through the angiogram, the doctor decides whether to conduct an angioplasty procedure. This process begins by inserting a thin flexible tube called a catheter into a narrowed or blocked blood vessel. The doctor then inserts a balloon through the catheter once it is in place. As the balloon reaches the correct location, the doctor inflates it to widen the area. In addition to this, the affected area in the blood vessel might be blocked again. In such a scenario, the doctor can put a stent to reduce the risk of blockages and surgery.

Is angioplasty necessary after angiography?

Not exactly. Angiography produces scanned images called angiograms that show the exact location of the blockage. It helps doctors choose the further course of treatment. Angioplasty is done when the blockage is in a small area and can be treated with a non-surgical procedure. Doctors conduct other treatment procedures like bypass or open-heart surgery when the blockage is in a larger area, which is not treatable non-surgically.

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Disclaimer
Medical Science is an ever evolving field. We strive to keep this page updated. In case you notice any discrepancy in the content, please inform us at [email protected]. You can further read our Correction Policy here. Never disregard professional medical advice or delay seeking medical treatment because of something you have read on or accessed through this website or it's social media channels. Read our Full Disclaimer Here for further information.

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