磁敏感成像诊断急性大动脉闭塞性脑梗死的临床研究

目的观察磁敏感成像(SWI)诊断急性大动脉闭塞性脑梗死的临床价值。方法回顾性分析2018年1月至2019年12月新疆维吾尔自治区喀什地区第二人民医院收治的96例急性大动脉闭塞性脑梗死患者的病例资料,所有患者分别实施头颅CT平扫、多参数磁共振检查,比较CT平扫、SWI以及MR常规序列对脑梗死后出血性转化(HT)的检出情况及分型结果。结果SWI对HT检出率为53.06%,显著高于CT平扫的22.92%及MR常规序列的29.17%,差异有统计学意义(χ^2=12.392,P<0.05);SWI对HI1型检出率为27.08%,高于CT平扫的10.42%,差异有统计学意义(χ^2=4.376,P<0.05),但对HI2型、PH1型、PH2型检出率与CT平扫比较,差异无统计学意义(χ^2=0.294、0.239、0.558,P>0.05);SWI对各型HT检出率与MR常规序列比较,差异无统计学意义(χ^2=0.132、0.504、0.236、0.558,P>0.05)。结论SWI-DWI操作简单、具有无创性、可重复性,成像速度快,能够有效预测缺血半暗带影像,敏感性高于CT平扫及MR常规序列,在急性脑梗死诊断中有着较高的价值。

Clinical study of magnetic sensitive imaging in the diagnosis of acute cerebral infarction with large artery occlusion

Objective To observe the clinical value of magnetic sensitive imaging(SWI)in the diagnosis of acute cerebral infarction with large artery occlusion.Methods Retrospective analysis of the case data of 96 patients with acute aortic occlusive cerebral infarction admitted to the Second People's Hospital of Kashgar,Xinjiang Uygur Autonomous Region,from January 2018 to December 2019.All of the patients,respectively,the implementation of skull CT scan and magnetic resonance imaging parameters,compared with conventional sequence CT scan,SWI and MR of hemorrhagic transformation(HT)after cerebral infarction,the detection and classification.Results The detection rate of SWI to HT was 53.06%,significantly higher than that of CT plain scan(22.92%)and MR routine sequence(29.17%),the difference was statistically significant(χ^2=12.392,P<0.05);The detection rate of SWI for HI1 was 27.08%,higher than 10.42%for CT plain scan(χ^2=4.376,P<0.05),but there was no statistically significant difference between the detection rate of HI2,PH1 and PH2 and CT plain scan(χ^2=0.294,0.239,0.558,P>0.05);There was no statistically significant difference between THE detection rate of VARIOUS HT types by SWI and the conventional MR sequences(χ^2=0.132,0.504,0.236,0.558,P>0.05).Conclusion SWI-DWI is simple,non-invasive,repeatable,and has a fast imaging speed.It can effectively predict ischemic penumbra images,with a higher sensitivity than CT plain scan and MR routine sequence,and has a high value in the diagnosis of acute cerebral infarction.