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缺血性卒中始终是残疾或死亡的一个重要原因。目前急性缺血性卒中的治疗选择包括静脉溶栓或血管内治疗,其目的是使近端动脉闭塞再通。迅速确定卒中的可能病因或机制有益于紧急治疗方案的选择。超早期成像在显示卒中病理生理学和制订合理的卒中治疗方案中起着必不可少的作用。缺血性卒中的超早期影像学检查可证实近端血管闭塞、代偿性侧支循环、残存或侧支组织灌注,区别缺血核心区与缺血半暗带。缺血区域,包括核心区和半暗带(多重模式CT或MRI显示的各种不匹配模式)的鉴别有可能优化目前的脑缺血治疗策略。超早期影像学检查的诊断和治疗作用已使之成为缺血性卒中评价和处理的一个关键组成部分。
Ischemic stroke is always an important cause of disability or death. Current treatment options for acute ischemic stroke include intravenous thrombolysis or endovascular treatment, with the goal of recanalization of the proximal arteries. The prompt identification of the possible cause or mechanism of stroke benefits the choice of emergency treatment. Ultra-early imaging plays an essential role in demonstrating the pathophysiology of stroke and in developing a rational stroke regimen. Ultra-early imaging of ischemic stroke can confirm proximal vascular occlusion, compensatory collateral circulation, residual or collateral tissue perfusion, distinguishing between ischemic core and ischemic penumbra. The identification of ischemic areas, including the core area and the penumbra (various patterns of mismatch shown by multiplex CT or MRI), may optimize current cerebral ischemic treatment strategies. The diagnostic and therapeutic role of ultra-early imaging has made it a key component of ischemic stroke evaluation and management.