大脑中动脉高密度征与磁敏感血栓征对大脑中动脉闭塞比较研究

发布时间：2018-12-08 10:30

【摘要】：目的比较研究大脑中动脉高密度征(HMCAS)和磁敏感血栓征(SVS)显示大脑中动脉(MCA)闭塞血栓的差异。方法回顾性分析41例临床及影像证实MCA近段闭塞急性脑梗死患者CT及MRI(包含SWI及MRA序列)影像资料。分析HMCAS、SVS显示责任血管血栓灵敏度、特异性、阳性预测值、阴性预测值及其相关性。结果 41例MCA区域急性脑梗死患者中,MRA显示27例同侧MCA近段闭塞,SWI显示21例SVS,CT显示22例HMCAS。HMCAS、SVS显示责任血管血栓灵敏度(78%,78%)、特异性(93%,100%)、阳性预测值(95%,100%)、阴性预测值(68%,70%)。在所有患者中,HMCAS与SVS对预测MCA近段是否闭塞具有高度的一致性(κ值分=0.853);在MRA证实MCA近段闭塞患者中,HMCAS与SVS有无对预测MCA近段是否闭塞具有良好的一致性(κ值分=0.786)。结论 HMCAS、SVS在显示MCA近段血栓具有较好的灵敏度及高度的特异性,并且两者之间具有良好的一致性。
[Abstract]:Objective to compare the high density sign of middle cerebral artery (HMCAS) and magnetic sensitive thromboembolism (SVS) in showing occlusive thrombosis of middle cerebral artery (MCA). Methods the imaging data of CT and MRI (including SWI and MRA sequences) in 41 patients with MCA proximal occlusion were retrospectively analyzed. The sensitivity, specificity, positive predictive value, negative predictive value and their correlation of HMCAS,SVS in showing responsible vascular thrombosis were analyzed. Results among 41 patients with acute cerebral infarction in MCA region, 27 patients with proximal ipsilateral MCA were found to be occluded by MRA, and 22 patients with SVS,CT by SWI showed sensitivity (7878%) and specificity (93,100%) of HMCAS.HMCAS,SVS in showing responsible vascular thrombosis. Positive predictive value (95%) and negative predictive value (68%). In all patients, HMCAS and SVS were highly consistent in predicting proximal occlusion of MCA (魏 = 0.853). In patients with proximal MCA occlusion confirmed by MRA, HMCAS and SVS had good consistency in predicting proximal MCA occlusion (魏 = 0.786). Conclusion HMCAS,SVS has good sensitivity and high specificity in showing proximal thrombus of MCA, and there is good consistency between them.
【作者单位】：锦州医科大学中国人民解放军沈阳军区总医院研究生培养基地;中国人民解放军沈阳军区总医院放射科;
【基金】：辽宁省自然科学基金计划项目(No.201602768)
【分类号】：R743.3

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