磁共振成像技术对缺血半暗带评估的新进展

New progress in the evaluation of ischemic penumbra by magnetic resonance imaging

缺血半暗带与急性脑血管闭塞造成的急性缺血性脑卒中的再灌注治疗效果显著相关。因此,缺血半暗带的正确评估对缺血性脑卒中患者临床治疗决策的制定和转归起着决定性的作用,可以作为扩大溶栓治疗时间窗的可靠依据。磁共振成像技术可以提供缺血脑组织的扩散、灌注、细胞代谢等方面的信息,对缺血半暗带的评估、后续治疗及预后至关重要。

Ischemic penumbra is significantly related to the therapeutic effect of reperfusion on ischemic stroke caused by acute cerebrovascular occlusion. Therefore, the correct evaluation of ischemic penumbra plays a decisive role in the formulation and outcome of clinical treatment decisions of patients with ischemic stroke, and can be used as a reliable basis for expanding the time window of thrombolytic therapy. Magnetic resonance imaging(MRI) can provide information on diffusion, perfusion and cell metabolism of ischemic brain tissue, which is very important for the evaluation, follow-up treatment and prognosis of ischemic penumbra.