Carotid Artery Ultrasound Doppler Scan - This is a noninvasive diagnostic test that uses ultrasound to detect narrowing of the arteries in the neck and can estimate the degree of narrowing or ...

Cerebral angiogram ... femoral artery near the groin and navigate it to the arteries in the neck. Blood supply to the brain comes from four main vessels originating from the aortic arch: two vertebral ...