Cerebral Angiogram

A cerebral angiogram is obtained when there is a need to evaluate the blood vessels that perfuse the brain. A long thin tube (catheter) is placed into an artery in the groin and advanced through the body until it reaches the carotid artery in the neck. An instrument called a fluoroscope provides a moving image of the catheter as it is being inserted, allowing the doctor to carefully guide it to a precise location. A contrast dye is injected through the catheter, and x-ray images are produced. The contrast dye causes the blood vessels to be clearly visualized so that blockages 110 or abnormal vascular anatomy can be identified.

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