The term “cerebrovascular disease” refers to atherosclerotic plaque buildup in the arteries supplying blood to the brain, which puts afflicted patients at risk for disabling stroke. By far the most commonly affected arteries are the carotid arteries which are located in the front of the neck. Most patients at risk have no symptoms until their initial stroke, which may leave them with a permanent disability or, if they are fortunate, resolve completely. Typical symptoms of a stroke include numbness or paralysis of one side of the body, inability to speak, blindness of one eye, or garbled or