Harris Ashley D, Coutts Shelagh B, Frayne Richard
Department of Radiology, University of Calgary, Calgary, Alberta, T2N 2T9 Canada.
Magn Reson Imaging Clin N Am. 2009 May;17(2):291-313. doi: 10.1016/j.mric.2009.02.001.
Diffusion and perfusion MR imaging have proven to be highly useful in the clinical description and understanding of acute and hyperacute ischemic stroke. In this article, the authors give a brief overview of the basic concepts of diffusion and perfusion imaging and describe some of the current developments, applications, challenges, and limitations of these techniques as applied to cerebral ischemia.
扩散加权磁共振成像（Diffusion-Weighted MR Imaging，DWI）和灌注加权磁共振成像（Perfusion-Weighted MR Imaging，PWI）已被证明在急性和超急性缺血性脑卒中的临床描述和理解中非常有用。在本文中，作者简要概述了扩散成像和灌注成像的基本概念，并描述了这些技术在脑缺血应用中的一些当前进展、应用、挑战和局限性。
