颅内孤立性纤维瘤与脑膜瘤MR影像特征多因素分析  

Multivariate Analysis of MR Imaging Features of Intracranial Solitary Fibrous Tumor and Meningioma

作　　者：张荟美 赵卫[1] 李宗芳[1] 胡娟[1] 张振光[1] 谢伟[1] 王清[1] ZHANG Huimei;ZHAO Wei;LI Zongfang(Department of Medical Imaging,First Affiliated Hospital of Kunming Medical University,Kunming 650032,P.R.China)

机构地区：[1]昆明医科大学第一附属医院影像科

出　　处：《临床放射学杂志》2018年第9期1436-1440,共5页Journal of Clinical Radiology

基　　金：研究生创新基金资助项目(编号:2017S097)

摘　　要：目的探讨颅内孤立性纤维瘤（SFT）和脑膜瘤的MR影像特征差别。方法搜集经手术及病理证实的SFT 21例和脑膜瘤71例,对两组病例的临床资料及MR影像特征观察指标进行单因素和多因素分析,统计方法包括t检验、χ^2检验、秩和检验和二分类Logistic回归。结果单因素分析显示患者性别、初诊年龄、肿瘤分叶征、瘤周囊变并囊变部分壁有强化、＂阴阳征＂、瘤内囊变或坏死灶、增强扫描均匀性、肿瘤与硬脑膜附着形式、＂脑膜尾征＂及＂脑膜尾＂长度这些因素在SFT组及脑膜瘤组间差异有统计学意义（P〈0.05）;其中＂阴阳征＂只在SFT组出现,其他多因素分析显示分叶征中的深分叶征及肿瘤与硬脑膜窄基底相连两个因素在两组肿瘤间差异有统计学意义（P〈0.05）。结论脑膜起源肿瘤MR影像上见典型＂阴阳征＂、深分叶征并与硬脑膜呈窄基底相连时倾向于SFT诊断,同时综合其他有差异的单因素有助于两者的鉴别诊断。Objective To investigate the differences of MR imaging features between intracranial solitary fibrous tumor（ SFT） and meningioma. Methods The MR imaging features and clinical data of 21 cases of SFT and 71 cases of meningioma were retrospectively analyzed. Statistical methods of t test,χ^2 test,rank sum test and Logistic Regression were included. Results There were statistical differences of age,sex and multiple MR imaging features（ lobulation,the wall of peritumoral cystic lesion with enhancement,＂yin-yang ＂sign,intratumoral cystic change or necrosis,homogeneous degree of tumor enhancement,the type of dural attachment,＂dural tail＂and the length of＂dural tail＂） between SFT group and meningioma group by univariate analysis（ P 0. 05）. Among these imaging features,＂yin-yang＂sign is observed only in SFT group. For the other imaging features,there were statistical differences of lobulation and the type of dural attachment between two groups by multivariate analysis（ P 0. 05）. Conclusion Dural tumors with MR imaging features of typical＂yin-yang＂sign,deep lobulation and narrow base were inclined to be diagnosed as SFT. Meanwhile,combining with the other univariate analysis results is helpful for diagnosis and differential diagnosis of SFT from meningioma.

关 键 词：孤立性纤维瘤 脑膜瘤 磁共振成像 

分 类 号：R739.4[医药卫生—肿瘤] R445.2[医药卫生—临床医学]