脑灰质异位的MRI平扫及增强扫描特征及价值分析

发布时间：2017-12-28 12:17

本文关键词：脑灰质异位的MRI平扫及增强扫描特征及价值分析　出处：《中国CT和MRI杂志》2016年12期 　论文类型：期刊论文

【摘要】：目的探讨脑灰质异位的MRI平扫及增强扫描特征及价值,提高对脑灰质异常的表现及临床特征的认识。方法回顾分析2009年9月至2012年9月经手术病理证实的10例脑灰质异位患者,所有患者均进行MRI平扫和增强扫描,分析其临床及影像学表现。结果脑灰质异位患者的MRI平扫表现如下,MRI平扫T1、T2、FLAIR轴位可见四叠体池偏左侧枕叶区域团片状混杂信号影,病灶边界欠清楚,信号不均匀;MRI平扫IR T1序列可见四叠体池偏左侧枕叶区域病灶显示更明显;MRI平扫e DWI序列呈等信号,未见扩散受限。MRI平扫诊断的确诊率达90%。MRI增强扫描轴位、冠状位、矢状位,可见四叠体池偏左侧枕叶区域病灶无明显强化。MRI增强扫描的确诊率达100%。MRI增强扫描的确诊率高于MRI平扫,诊断结果与临床病理诊断结果相比,差异无统计学意义。结论脑灰质异位的MRI表现具有特征性,MRI在脑灰质异位的诊断中具有非常高的应用价值,可以作为脑灰质异位的重要检查方法。
[Abstract]:Objective to explore the characteristics and value of MRI scan and enhanced scan of the heterotopic gray matter, and to improve the understanding of the abnormal performance and clinical characteristics of the brain gray matter. Methods from September 2009 to 2012, 10 patients with ectopic gray matter confirmed by operation and pathology in 9 menstrual period were retrospectively analyzed. All patients underwent MRI plain scan and enhanced scan, and their clinical and imaging findings were analyzed. Results the MRI of patients with cerebral heterotopia scan as follows, MRI scan, T1 T2, FLAIR axial visible quadrigeminal left occipital lobe patchy areas of partial mixed signal and the lesion boundary less clear, the signal is not uniform; MRI scan IR T1 sequence showed partial left occipital lobe region quadrigeminal lesions showed more obvious e DWI; MRI scan sequence was equal signal, no diffusion limited. The diagnosis rate of MRI scan was 90%. MRI scan axial, coronal, sagittal, visible partial quadrigeminal cistern left occipital lobe lesion showed no enhancement. The diagnostic rate of MRI enhanced scan was 100%. The diagnostic rate of MRI enhanced scan was higher than that of MRI, and there was no significant difference between the diagnosis and the clinicopathological diagnosis. Conclusion the MRI findings of gray matter heterotopic is characteristic. MRI has very high application value in the diagnosis of ectopic gray matter. It can be used as an important examination method for heterotopic gray matter.
【作者单位】：湖北省天门市第一人民医院CT室;湖北省天门市第一人民医院神经外科;
【分类号】：R742;R445.2
【正文快照】： 脑灰质异位症(gray matter heterot),简称GMH。在胚胎时期,神经元在移行过程中受阻而聚集在室管膜和皮质之间,从而产生了一种先天性畸形-脑灰质异位。脑灰质异位也可以跟其他中枢神经系统其他畸形同时存在,成为智力和体力障碍的原因之一[1]。Rudolph Virchow是在Jungel报导1例

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