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Definition - What does angiography mean?

Angiography is the examination of blood vessels within the body by use of x-ray technology. To perform this procedure a dye, or radiopaque substance, is introduced into the bloodstream to make the vessels visible under x-ray.

SureHire explains angiography

Angiography is a medical procedure used to examine the vessels, both veins and arteries, of the circulatory system. The examination is conducted by injecting a special dye into the blood of the patient. A steady stream of x-ray beams is then employed to detect this dye and relay images to the examining physician, in a procedure referred to as fluoroscopy. Because a continuous beam is used for this procedure, the patient is exposed to more radiation than during a single x-ray imaging procedure. Using angiography, the examining physician can observe the flow of blood and any narrowing or blockage of veins and arteries in real-time. This imaging method may also be used by surgeons to guide their work during procedures. An angiography examination may focus on one part of the circulatory system, such as a coronary angiography, or the system as a whole.

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