急性脑梗死改良TOAST分型的影像学表现

IMAGEOLOGICAL MANIFESTATIONS OF ACUTE CEREBRAL INFARCTION WITH MODIFIED TOAST CLASSIFICATION

目的探讨急性脑梗死改良TOAST分型(M-TOAST)与磁共振弥散加权成像(DWI)的关系。方法回顾性调查187例急性脑梗死病人,分别进行M-TOAST分型与DWI影像学分型,分析两者之间的相关性。结果 DWI病灶特点与M-TOAST病因分型有关(2χ=242.715,P<0.001)。其中,14例皮质-皮质下梗死、22例单侧前循环多发梗死病因与动脉粥样硬化性血栓形成有关(2χ=11.987、33.253,P<0.001);10例皮质梗死病因与心源性栓塞有关(χ2=28.866,P<0.001);59例小穿通支梗死病因与小血管病变有关(2χ=147.406,P<0.001)。结论在脑梗死急性期,DWI影像学表现与M-TOAST分型有关。

Objective To study the correlation between modified TOAST（M-TOAST） classification and diffusion-weighted imaging（DWI） in patients with acute cerebral infarction（ACI）. Methods A retrospective investigation was done in 187 patients with ACI.They were grouped according to M-TOAST and DWI,and the relation between them was analyzed. Results The imaging appearance on DWI was significantly associated with M-TOAST classification（χ^2242.715,P〈0.001）.Of whom,14 with single cortical-subcortical infarction and 22 with unilateral multiple infarctions of anterior circulation were closely associated with atherosclerotic thrombosis（χ^211.987,33.253;P〈0.001）;10 with cortical infarction were related to cardiogenic embolism（χ^228.866,P〈0.001）;59 with small infarction in basal ganglion and brain stem were attributed to small vessel diseases（χ^2147.406,P〈0.001）. Conclusion In the acute stage of cerebral infarction,the manifestation of DWI is associated with modified TOAST classification.