WHO Ⅰ级脑膜瘤各亚型MRI表现与病理对照研究

Journal of China Clinic Medical Imaging(2016)

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Abstract
目的:分析WHO Ⅰ级脑膜瘤各亚型MRI表现与病理学的关系,提高对脑膜瘤各亚型的诊断水平.材料和方法:收集手术并经病理证实的WHO Ⅰ级脑膜瘤131例,术前均行颅脑MR扫描,并对MRI表现进行分析,内容包括:T1WI信号强度、T2WI信号强度、瘤周水肿程度和肿瘤强化程度,分别给予量化,对照病理,行多样本秩和检验,P<0.05有统计学意义.结果:WHO Ⅰ级脑膜瘤各亚型T1WI信号强度有统计学差异(x2=30.4,P<0.001),各亚型T2WI信号强度有统计学差异(x2=20.1,P<0.001),各亚型瘤周水肿程度无统计学差异(x=9.09,P=0.059),各亚型强化程度有统计学差异(x2=47.2,P<0.001).结论:血管瘤型脑膜瘤易与其他亚型脑膜瘤鉴别;上皮型脑膜瘤次之;混合型脑膜瘤、纤维型脑膜瘤及砂粒体型脑膜瘤三者之间不易鉴别,但与血管瘤型脑膜瘤和上皮型脑膜瘤可鉴别.
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Key words
Meningioma,Magnetic resonance imaging
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