Hoggard N, Wilkinson I D, Griffiths P D
Academic Department of Radiology, University of Sheffield, Royal Hallamshire Hospital, Glossop Road, Sheffield, S10 2JF, UK.
Clin Radiol. 2001 Mar;56(3):171-83. doi: 10.1053/crad.2000.0619.
Stroke is a clinical syndrome of a rapidly developing focal neurological deficit that may be classified for practical purposes into ischaemic and haemorrhagic. The role of imaging is to exclude mimics of ischaemic stroke or intracranial haemorrhage and confirm the presence of an ischaemic stroke. Computed tomography (CT) remains the investigation of choice to exclude acute intracranial haemorrhage but diffusion weighted magnetic resonance (MR) has proved to be a sensitive method of detecting early ischaemic infarction. Perfusion weighted MR allows further assessment at the same examination that could help guide the clinician in the risk/benefit analysis of treatment with thrombolytics or neuroprotective agents under evaluation. This can also be achieved with CT. This review article discusses the imaging of ischaemic stroke, relating the pathophysiology of stroke to it. It deals separately in more detail with these newer MR techniques.
中风是一种迅速发展的局灶性神经功能缺损的临床综合征，出于实际目的可分为缺血性和出血性。影像学的作用是排除缺血性中风或颅内出血的类似病症，并确认缺血性中风的存在。计算机断层扫描（CT）仍然是排除急性颅内出血的首选检查方法，但弥散加权磁共振成像（MR）已被证明是检测早期缺血性梗死的一种敏感方法。灌注加权磁共振成像可以在同一次检查中进行进一步评估，这有助于指导临床医生对正在评估的溶栓或神经保护药物治疗的风险/效益分析。CT也可以做到这一点。这篇综述文章讨论了缺血性中风的影像学，将中风的病理生理学与之联系起来。它更详细地分别论述了这些更新的磁共振成像技术。
