an imaging technique that provides a picture, called an angiogram, of blood vessels.
a symptom of classic migraine headache in which the patient sees flashing lights or zigzag lines, or may temporarily lose vision.
basilar artery migraine
migraine, occurring primarily in young women and often associated with the menstrual cycle, that involves a disturbance of a major brain artery. Symptoms include vertigo, double vision, and poor muscular coordination.