title: Acute stroke: basic concepts and use of imaging for clinicians.
abstract: In this article we review basic and some advanced concepts of stroke imaging. The benefits and caveats of both CT and MRI are stressed and we attempt to familiarize the reader with current concepts regarding collateral brain circulation, its nature, and its importance in acute stroke.
authors.affiliation: Division of Neuroradiology, University of North Carolina School of Medicine, Chapel Hill, NC, USA. castillo@med.unc.edu
authors.forename: M
authors.initials: M
authors.lastname: Castillo
authors.forename: H
authors.initials: H
authors.lastname: Alvarez
mesh_terms: D001921:Brain / Q000098:blood supply / Q000000981:diagnostic imaging / Q000473:pathology; D002560:Cerebrovascular Circulation; D003097:Collateral Circulation; D006801:Humans; D018810:Magnetic Resonance Angiography / Q000379:methods; D008279:Magnetic Resonance Imaging / Q000379:methods*; D020521:Stroke / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed / Q000379:methods*