Blockage in carotid artery
Carotid angiography is an invasive imaging procedure that involves inserting a catheter into a blood vessel in the arm or leg, and guiding it to the carotid arteries with the aid of a special x-ray machine. Contrast dye is injected through the catheter so that x-ray movies of your carotid arteries (the arteries that supply your brain with oxygen-rich blood) are taken. This procedure is considered the "gold standard" for imaging the carotid and cerebral vessels.
Your doctor uses carotid angiography to:
- evaluate or confirm the presence of narrowing or blockage in your carotid arteries
- determine risk for future stroke
- determine the need for further treatment (angioplasty or surgery)
- perform a minimally invasive procedure, carotid stenting, to fix the narrowing in the carotid artery
This information is about testing and procedures and may include instructions specific to Cleveland Clinic. Please consult your physician for information pertaining to your testing.