Autoregulation of cerebral blood flow (CBF) is a physiologic and homeostatic process that maintains nearly constant CBF over a range of mean arterial pressures (MAPs). Disease states, including ...

The clinical syndrome produced by a stroke is determined by the artery or arteries that are occluded. Blood is supplied to the brain by two major sets of arteries, the anterior and posterior ...

IN modern civilizations an enormous toll of suffering and death is exacted by local disorders of brain blood flow. Regional hemodynamic failure, with unique rapidity, produces anoxic devastation in ...

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 ...

Centrally located in the brain, the posterior cerebral artery makes up the lower portion of the circle of Willis. This arterial network also consists of posterior and anterior communicating arteries, ...

A 66 year-old woman developed the abrupt onset of difficultly seeing on the left side along with vertigo, nausea, vomiting and a sense of falling to the left. Cerebellar and Posterior Cerebral Artery ...

The posterior cerebral artery (PCA) supplies oxygenated blood to the visual cortex in tandem with the middle cerebral artery. The visual cortex is in the back of the brain and responsible for ...

Persistent Fetal Circulation. Rostal-caudal MRA projection. A number of individuals have a normal anatomic variant known as a persistent fetal circulation, where the posterior cerebral artery (PCA) ...