3．0TMR脑灰质成像在脑灰质异位中的应用  

Clinical application of cerebral grey matter imaging at 3.0T MR for gray matter heterotopia

作　　者：袁飞[1] 刘银社[1] 赵军[1] 袁滨[1] 张忠强[1] 艾克文[1] 

机构地区：[1]武警医学院附属医院放射科,天津300162

出　　处：《实用放射学杂志》2011年第8期1129-1132,共4页Journal of Practical Radiology

摘　　要：目的探讨3．0TMR脑灰质成像在脑灰质异位症中的诊断价值。方法回顾性分析25例经临床及MRI检查确诊的脑灰质异位症病人的MRI资料，全部病人均行头颅MRI常规T1WI、T2WI序列，FLAIR序列和脑灰质成像检查。结果25例中，病变为双侧14例，单侧11例，多病灶17例。室管膜下型13例，皮层下局灶型10例，其中2例病人室管膜下及皮层下局灶并存，皮层下弥漫型2例。1例病人并发多微小脑回畸形，1例病人同时伴有透明隔缺如。在病变显示方面，灰质成像明显优于T1WI、T2WI及FLAIR（X2=21．16，P〈0．05）。结论3．0TMR脑灰质成像对显示灰质异位病变的部位和范围具有重要价值。Objective To study the clinical value of MR grey matter imaging in diagnosing cerebral gray matter heterotopia. Methods 25 cases of gray matter heterotopia confirmed by clinic were retrospectively analyzed. All cases underwent MR examination with routine T1 WI,T2 WI, FLAIR sequences and grey matter imaging. Results The lesions were bilateral in 14 cases and unilateral in 11 cases and multi-heterotopia of gray matter in the periventricular and suhcortical white matter in 17 cases. 13 cases were subependymal type, 10 cases were subcortical type （locally） including 2 cases with both subependymal and subcortical type, 2 were diffusion subcortical type. The lesions associated with polymicrogyri and absence of septum pellucidum in one case,respectively, cerebral grey matter imaging was obviously superior to T1WI,T2WI and FLAIR（x2=21.16, P〈0.05）in displaying the morphology and extent of the lesions. Conclusion 3.0T MR grey matter imaging is of significant value in showing the location and extent of gray matter heterotopia.

关 键 词：脑 灰质异位 磁共振成像 

分 类 号：R742[医药卫生—神经病学与精神病学] R445.2[医药卫生—临床医学]