3.0T磁共振对静脉性脑梗死的评估

发布时间：2018-03-27 09:41

本文选题：静脉性脑梗死　切入点：磁共振成像　出处：《中国现代医学杂志》2015年22期

【摘要】：目的回顾性分析静脉性脑梗死的磁共振(MR)表现,提高诊断水平。方法对7例静脉性梗死患者影像资料进行回顾性分析,7例均行常规MR、DWI、SWI及MRV扫描。结果 7例脑内多发病灶5例,单发病灶2例,7例中发生于额叶2例,颞叶1例,顶叶3例,丘脑1例;病变T1WI呈等或低信号,T2WI呈高信号,边缘模糊,伴脑肿胀,少量水肿,并出血时,出现出血信号,DWI呈略高信号;SWI示小出血灶为低信号,Min IP-SWI可显示病灶周围增多、扩张的小静脉。静脉栓塞部位:4例为上矢状窦,4例为横窦,2例为直窦,4例为乙状窦,2例为大脑内静脉及大脑大静脉,窦汇2例,受累静脉窦均为多个,1例未见静脉窦受累。7例均行3DCE-MRV扫描,发现栓塞部位表现为低信号充盈缺损。结论静脉性脑梗死MR表现有特异性,常规MR结合MRV可作为首选的检查方法,对静脉性脑梗死早期诊断早期治疗有着重要作用。
[Abstract]:Objective to retrospectively analyze the MRI findings of venous cerebral infarction (VCI) and improve the diagnostic level. Methods the imaging data of 7 patients with venous infarction were retrospectively analyzed. The lesions occurred in the frontal lobe (n = 2), temporal lobe (n = 1), parietal lobe (n = 3) and thalamus (n = 1) in 7 patients with solitary lesions. The lesions showed hyperintense or hypointense T _ 2WI with blurry edges, brain swelling, small amount of edema and hemorrhage on T1WI. When hemorrhage signal appeared on DWI, the small hemorrhage foci showed low signal intensity and IP-SWI could show the increase around the lesion. The venous embolization site was superior sagittal sinus (n = 4), transverse sinus (n = 2), straight sinus (n = 4), sigmoid sinus (n = 2), internal cerebral vein (n = 2) and great cerebral vein (n = 2), and sinus confluence (n = 2). In all cases, multiple venous sinus involvement was found in 1 case, and 7 cases without venous sinus involvement were examined by 3DCE-MRV scan. It was found that the location of embolism was low signal filling defect. Conclusion the Mr findings of venous cerebral infarction are specific. Conventional Mr combined with MRV can be used as the first examination method. It plays an important role in early diagnosis and treatment of venous cerebral infarction.
【作者单位】：延安大学附属医院;
【分类号】：R743.3;R445.2

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