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Brain Carotid stenosis, X-ray of the left artery Carotid stenosis, X-ray of the right artery

Overview Risks Results

Cerebral angiography

Alternative Names: Vertebral angiogram; Angiography - head; Carotid angiogram What the risks are: There is the possibility of significant complications: A reaction to the contrast dye can occur. There is some risk of the catheter damaging the artery or knocking loose a piece of the artery wall, which can block blood flow and cause a stroke. This is rare, however. A clot or bleeding at the puncture site may result in a partial blockage of the blood to the leg. Special considerations: Text Continues Below Notify your health care provider immediately if you have: Facial weakness Slurred speech Visual trouble Numbness in your leg during or after the procedure

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