中国医疗设备2017，Vol.32Issue(2)：60-64,5.DOI:10.3969/j.issn.1674-1633.2017.02.016
非典型脑膜瘤的MRI表现及鉴别诊断
MRI Features and Differential Diagnosis of Atypical Meningioma
摘要
Abstract
Objective To analyze the Magnetic Resonance Imaging (MRI) features of atypical meningioma so as to improve accuracy of diagnosis and differential diagnosis to atypical meningioma.Methods Totally 19 cases of atypical meningiomas verified by operation and pathological examination were retrospectively analyzed,and compared with 20 cases of glioblastoma as well as 13 cases of brain solitary metastases.All patients were simultaneously performed by routine MRI examination and detection of diffusion weighted imaging (DWI).Among them,7 cases of meningioma,9 cases of brain solitary metastasis and 16 cases of glioblastoma were additionally detected by HLmagnetic resonance spectroscopy (HLMRS).Differences in the three groups were analyzed.Results Atypical meningioma mostly revealed mild peritumoral edema with edge blur.The solid area of atypical meningioma mostly showed strengthening on the whole tumor,and strengthening degree was more obvious than that of brain solitary metastasis or glioblastoma.Besides,the cyst wall inside the tumor was completely strengthen,but the cyst wall surrounding the tumor showed partially strengthen.DWI revealed apparent diffusion coefficient (ADC) values of tumor solid area as well as peritumoral edema among the three groups were of no significant difference,whilst ADC values of peritumoral edema in glioblastoma and brain solitary metastasis respectively showed significantly different (P=0.021).MRS indicated that the three groups all showed obvious rise in choline (Cho) peak but visible decline in N-acetylaspartate (NAA) peak.In addition,atypical meningiomas showed inconspicuous NAA peak,and less possibility of obvious lipid (lip) peak or lactic acid (lac) peak as compared with the other two tumors mentioned above.Conclusion MRI features of atypical meningioma were various,but it still had certain characteristics.Multimodality imaging examination method could be applied to improve the diagnostic accuracy of atypical meningoma.关键词
脑膜瘤/磁共振/弥散加权磁共振/磁共振波普/胶质母细胞瘤/脑转移瘤Key words
meningioma/MRI/diffusion weighted imaging/magnetic resonance spectroscopy/glioblastoma/brain metastases分类
医药卫生引用本文复制引用
陆菲菲,肖慧,宋娟,虞浩,殷灿,李田飞..非典型脑膜瘤的MRI表现及鉴别诊断[J].中国医疗设备,2017,32(2):60-64,5.基金项目
福建省自然科学基金(2016J01591). （2016J01591）
