脑膜瘤的MRI表现与病理分类(附41例报告)  

Imaging Investigations of Intracranial Meningiomas and Study on Histology

作　　者：李立[1] 郭茂凤[1] 郭亮[1] 

机构地区：[1]苏州大学附属第一医院放射科,江苏苏州215006

出　　处：《现代医用影像学》2010年第3期145-147,共3页Modern Medical Imageology

摘　　要：目的:探讨脑膜瘤的MRI表现及病理分类。材料与方法:对41例经手术病理证实的脑膜瘤病例MRI表现进行回顾性分析。结果:在MRISE-T1WI上,41例脑膜瘤病例中16例呈低或稍低信号占39%,25例呈等信号占61%。在SE-T2WI上,高或稍高信号31例占75.6%,等信号8例占19.5%,低或稍低信号2例占4.8%。结论:脑膜瘤的MRI表现特征明显,并且T2的信号强度差异对部分脑膜瘤的病理分类有一定帮助。Purpose：To study the MR imaging and histological classification of Intracranial Meningiomas.Materials and Methods：41 cases of Intracranial Meningiomas which were operated and identified with pathological examinations were analyzed retrospectively.Results：On T1WI,16 cases（39%） were hypointense or slightly hypointense;25 cases（61%）were isointense.On T2WI 31 cases（75.6%） were hyperintense or slightly hyperintense;8 cases（19.5%）were isointense;only 2 cases（4.8%）were hypointense or slightly hypointense.Conclusion：Most of Intracranial Meningiomas have characteristic MRI imaging;On T2-weighted images,there were significant correlation between signal intensity and tumor histology.

关 键 词：脑膜瘤 磁共振成像 病理 

分 类 号：R739.45[医药卫生—肿瘤]