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Angiography is a medical imaging technique used to visualize the blood vessels in the body, including arteries, veins, and capillaries. It involves the injection of a contrast agent, or dye, into the bloodstream, which highlights the blood vessels on X-ray images or other imaging modalities such as computed tomography (CT) or magnetic resonance imaging (MRI).
There are different types of angiography, including:
Angiography is used to diagnose a variety of conditions that affect the blood vessels, including blockages, aneurysms, and abnormal blood vessel growths. It can also be used to guide certain medical procedures, such as the placement of a stent or the embolization of a blood vessel to stop bleeding.
While angiography is generally considered a safe and effective imaging technique, there is a small risk of complications such as bleeding, infection, or an allergic reaction to the contrast dye. Your healthcare provider will discuss the benefits and risks of angiography with you prior to the procedure.