The objective of this study was to compare alterations in the middle cerebral artery (MCA) pulsatility index (PI) and mean velocity (V mean) after laser surgery for twin–twin transfusion syndrome ...

A 52 year-old woman developed the abrupt onset of an explosive headache. Subarachnoid Hemorrhage - Middle Cerebral Artery Aneurysm. Cerebral angiogram, right internal carotid artery injection: (Left) ...

The vertebrobasilar arterial supply feeds the brain stem (medulla, pons, and midbrain), cerebellum, occipital lobes, posterior temporal lobes, and thalamus (not visible in this view). The arterial ...

WE have recently studied 2 patients with symptoms of cerebral ischemia in whom a reversal of blood flow through the left vertebral artery was demonstrated. In both cases the anatomic lesion producing ...

A 45 year-old man developed the abrupt onset of an explosive headache followed by nausea and vomiting. On exam, he was drowsy with subtle left sided weakness. Subarachnoid Hemorrhage - Middle Cerebral ...