【摘要】 目的 对比分析血管瘤型脑膜瘤与非典型脑膜瘤的MRI征象,提高鉴别诊断能力。方法 回顾性分析经手术病理证实的21例血管瘤型脑膜瘤与37例非典型脑膜瘤的MRI资料,比较2种脑膜瘤的MRI征象,并进行统计学分析。结果 血管瘤型脑膜瘤与非典型脑膜瘤相比,肿瘤分叶征(χ~2=5.754,P=0.022)、脑膜尾征形态(χ~2=13.107,P=0.000)及长度(t=2.123,P=0.038)、瘤脑界面(χ~2=20.292,P=0.000)、邻近骨质改变(χ~2=4.321,P=0.044)及肿瘤强化程度(χ~2=8.846,P=0.005)6项差异均有统计学意义。瘤脑界面(χ~2=9.761,P=0.002),邻近骨质改变(χ~2=9.547,P=0.002)2项联合对于2类脑膜瘤的鉴别有显著的影响(P均<0.05)。肿瘤的囊变坏死(χ~2=0.003,P=1.000)、瘤内血管流空信号(χ~2=0.823,P=0.506)、瘤周水肿(χ~2=0.222,P=0.640)及肿瘤强化后均匀性(χ~2=0.000,P=1.000)4项差异无统计学意义(P均>0.05)。结论 血管瘤型脑膜瘤与非典型脑膜瘤在肿瘤分叶征、脑膜尾征长度、瘤脑界面、邻近骨质改变及肿瘤强化程度的MRI征象存在差异,有助于两者鉴别。更多还原

【Abstract】 Objective To investigate MRI features of angiomatous and atypical meningioma for improving the ability of differential diagnosis.Methods MRI date of 21 cases with angiomatous meningioma and 37 cases with atypical meningoma confirmed by pathology were analyzed retrospectively.MRI signs of the two tumors were compared with each other.Results Lobulation(χ~2=5.754,P=0.022),dural tail sign(χ~2=13.107,P=0.000) and length(t=2.123,P=0.038),fuzzy of brain-tumor interface(χ~2=20,292,P=0.000),adjacent bone changes(χ~2=4.321,P=0.044),and tumor enhanced level(χ~2=8.846,P=0.005) were significantly different between the two tumors.The differential diagnosis between the two tumors were significantly affected by using the combination of the fuzzy of brain-tumor interface(χ~2=9.761,P=0.002) and adjacent bone changes(χ~2=9.547,P=0.002)(P <0.05).There was no significant difference of the necrosis and cystic change(χ~2=0.003,P=1.000),vascular flowing void signal(χ~2=0.823,P=0.506),peritumoral edema(χ~2=0.222,P=0.640),and homogenous enhancement(χ~2=0.000,P=1.000) between the two tumors(P>0.05).Conclusion MRI signs of angiomatous meningioma and atypical meningioma are different.Lobulation,dural tail sign and length,fuzzy of brain-tumor interface,adjacent bone changes,and tumor enhanced level are helpful for differential diagnosis.更多还原