MRI对颅内脑膜瘤的诊断价值研究

发布时间：2018-05-04 15:53

本文选题：MRI + 颅内脑膜瘤　；参考：《中国CT和MRI杂志》2016年04期

【摘要】：目的探讨MRI对颅内脑膜瘤的临床诊断价值。方法回顾性分析我院2014年1月-2015年12月期间接收并经手术病理确诊的96例脑膜瘤患者的MRI检查资料,并对脑膜瘤患者的病变大小、位置、形态等MRI影像特征、检出率及其病理特点进行综合分析。结果 96例脑膜瘤患者均为单发肿瘤,其中肿瘤位于顶部大脑凸面、前颅底、中颅凹底、后颅底、大脑镰旁的患者分别有39例、23例、18例、10例、6例;以手术病理确诊结果为标准,MRI对本组脑膜瘤肿瘤的检出率为91.7%;肿瘤的形态主要为圆形或椭圆形、半月形,直径在3-5cm之间,大小在1.2cm×1.0cm×1.3cm-6.2cm×4.6cm×6.1cm之间;在T1WI呈等信号58例,呈稍低信号29例,呈混杂不均匀信号9例;在T2WI呈稍高信号46例,呈等信号21例,呈低信号21例,呈混杂不均匀信号8例;增强扫面后,明显强化的有88例,强化不均匀有8例;67例可见明显的脑膜尾,38例肿瘤周围显示有水肿带,63例肿瘤在T1WI上可见环状低信号,27例局部颅盖骨增厚。结论 MRI在脑膜瘤的诊断过程中,不仅能够定位诊断出肿瘤的发育部位、大小、形态,还能通过综合分析脑膜瘤的MRI影像表现与病理特点进行定性诊断,具有重要的临床应用价值,值得进一步推广和应用。
[Abstract]:Objective to evaluate the value of MRI in the diagnosis of intracranial meningioma. Methods the MRI findings of 96 patients with meningioma received from January 2014 to December 2015 were analyzed retrospectively, and the size, location and morphology of the lesions were analyzed. The detection rate and pathological characteristics were analyzed. Results all the 96 cases of meningioma were single tumors, of which 39 cases were located on the protuberance of the top brain, the anterior skull base, the middle cranial fossa base, the posterior skull base and the parietal cerebral falx. There were 23 cases, 18 cases, 10 cases, 6 cases, respectively. The positive rate of MRI in meningioma was 91.7, the shape of the tumor was mainly round or ellipse, semilunar shape, diameter between 3-5cm, size between 1.2cm 脳 1.0cm 脳 1.3cm-6.2cm 脳 4.6cm 脳 6.1cm, in T1WI, 58 cases showed isointense signal, 29 cases showed slightly low signal intensity. There were 9 cases of mixed heterogeneous signal, 46 cases of slightly hyperintense signal, 21 cases of isointense signal, 21 cases of low signal intensity and 8 cases of mixed heterogeneous signal. There were 8 cases with heterogeneous enhancement and 67 cases with obvious meningeal caudate. In 38 cases, edema band was found in 63 cases. On T1WI, 27 cases of local skull bony thickening were seen on T1WI. Conclusion in the process of diagnosis of meningioma, MRI can not only locate the location, size and shape of the tumor, but also make qualitative diagnosis by synthetically analyzing the MRI imaging features and pathological features of meningioma. Has important clinical application value, is worth further promotion and application.
【作者单位】：陕西省汉中市中心医院神经外科;
【分类号】：R445.2;R739.45

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