Heyn Chris, Alcaide-Leon Paula, Bharatha Aditya, Sussman Marshall S, Kucharczyk Walter, Mandell Daniel M
Department of Medical Imaging, University of Toronto, Toronto, Ontario, Canada.
Top Magn Reson Imaging. 2016 Apr;25(2):63-71. doi: 10.1097/RMR.0000000000000079.
Susceptibility-weighted imaging (SWI) has become an important imaging sequence in the evaluation of patients with neurovascular disease. In this review, we provide a general overview of the physics of SWI and describe how image contrast is produced with this technique. We provide a general approach and differential diagnosis for 2 commonly encountered radiographic patterns seen with SWI in neurovascular disease. Finally, we discuss specific neurovascular applications of SWI, including its application in acute stroke, vascular malformations, venous thrombosis, and evaluation of cerebral microbleeds.
磁敏感加权成像（SWI）已成为评估神经血管疾病患者的重要成像序列。在本综述中，我们对SWI的物理学原理进行了概述，并描述了该技术如何产生图像对比度。我们针对神经血管疾病中SWI常见的两种影像学表现提供了一般方法和鉴别诊断。最后，我们讨论了SWI在特定神经血管疾病中的应用，包括其在急性卒中、血管畸形、静脉血栓形成以及脑微出血评估中的应用。
