Department of Radiology, St. Vincent's Catholic Medical Center, 170 W 12th St, New York, NY 10011, USA.
AJR Am J Roentgenol. 2012 Jan;198(1):52-62. doi: 10.2214/AJR.10.7255.
Perfusion CT is being increasingly used as a diagnostic tool for the evaluation of acute ischemic stroke. It can be performed rapidly and aids in the detection of salvageable tissue (penumbra) from the unsalvageable core infarct. The purpose of this article is to provide an overview of the imaging technique, interpretation pearls, and common pitfalls encountered in perfusion CT of the brain.
Perfusion CT has proven to be a valuable tool in the diagnosis of acute ischemic stroke. The knowledge provided by these cases will allow the reader not only to confidently identify the presence of acute ischemic stroke, but also to recognize the common pitfalls and limitations of perfusion CT in this setting.
灌注 CT 正越来越多地被用作评估急性缺血性脑卒中的诊断工具。它可以快速进行，并有助于从不可挽救的核心梗死区中检测到可挽救的组织（半影区）。本文的目的是提供灌注 CT 脑成像技术、解读要点和常见陷阱的概述。
灌注 CT 已被证明是急性缺血性脑卒中诊断的有价值工具。通过这些病例提供的知识不仅可以使读者有信心识别急性缺血性脑卒中的存在，还可以认识到灌注 CT 在这种情况下的常见陷阱和局限性。
