title: MR perfusion imaging in acute ischemic stroke.
abstract: Magnetic resonance (MR) perfusion imaging offers the potential for measuring brain perfusion in acute stroke patients, at a time when treatment decisions based on these measurements may affect outcomes dramatically. Rapid advancements in both acute stroke therapy and perfusion imaging techniques have resulted in continuing redefinition of the role that perfusion imaging should play in patient management. This review discusses the basic pathophysiology of acute stroke, the utility of different kinds of perfusion images, and research on the continually evolving role of MR perfusion imaging in acute stroke care.
authors.affiliation: Department of Radiology, Division of Neuroradiology, Massachusetts General Hospital, GRB-273A, 55 Fruit Street, Boston, MA 02114, USA. wcopen@partners.org
authors.forename: William A
authors.initials: WA
authors.lastname: Copen
authors.forename: Pamela W
authors.initials: PW
authors.lastname: Schaefer
authors.forename: Ona
authors.initials: O
authors.lastname: Wu
mesh_terms: D002545:Brain Ischemia / Q000150:complications*; D002533:Cerebral Angiography / Q000639:trends*; D006801:Humans; D018810:Magnetic Resonance Angiography / Q000639:trends*; D020521:Stroke / Q000150:complications* / Q000175:diagnosis*