Interventional Angiography

Angiography is an X-ray examination using contrast dye to examine blood vessels in the body.

Angiography is the X-ray imaging of blood vessels using contrast agents injected into the bloodstream through a thin plastic tube (catheter) placed directly in the blood vessel. Angiography uses a liquid contrast agent to provide information about blood vessel abnormalities, such as narrowing, blockage, inflammation, abnormal dilation, and bleeding. Contrast agents are injected into an artery or vein to make the blood vessels visible on X-rays.

Angiography is also used to guide procedures that treat blood vessel abnormalities. If the artery is narrowed, a tiny balloon can be inflated (and occasionally, a piece of metal tubing called a ‘stent’ can be inserted) to widen the artery and restore normal blood flow. This procedure is called angioplasty. Angiography is also used to guide procedures where abnormal blood vessels need to be blocked off if they are bleeding (a process called ‘embolisation’) or as part of other medical investigations or surgical treatments.

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