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头颅MR、DWI、MRS、术中快速冰冻与脑胶质瘤病理分级对比

Chinese Journal of Practical Nervous Diseases(2011)

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Abstract
目的 对比分析磁共振扩散加权成像(DWI)、表现弥散系数(ADC)值和磁共振波谱(MRS)、术中快速冰冻与脑胶质瘤病理分级对比分析,为胶质瘤术前、术中诊断和分级提供更详实的依据.方法 对37例脑胶质瘤患者行磁共振检查,测定肿瘤实质部分、对照侧ADC值、其比值(rADC);测定脑胶质瘤中代谢产物N-乙酰天门冬氨酸(NAA)、胆碱(Cho)、肌酸(cr)水平及其比值,将结果与术中和术后病理对比分析.结果 低级别胶质瘤(1~2级)ADC值和rADC值高于高级别胶质瘤(3~4级)(P<0.05),与肿瘤病理分级呈负相关,NAA/Cho和NAA/Cr与肿瘤级别呈明显负相关(P<0.05),Cho/Cr与胶质瘤级别呈正相关(P<0.05),磁共振病理分级与病理分级准确率81.7%.结论 ADC值和MRS与胶质瘤病理分级有相关性.
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Grade,Magnetic resonance,Glioma,Immunohistochemistry
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