磁共振扩散加权成像对高、低级别脑膜瘤的鉴别诊断价值

发布时间：2018-03-28 00:06

本文选题：脑膜瘤　切入点：磁共振成像　出处：《中国临床医学影像杂志》2017年11期

【摘要】：目的 :探讨磁共振扩散加权成像(DWI)对高、低级别脑膜瘤的鉴别诊断价值。方法 :回顾性分析经病理证实的31例低级别脑膜瘤(WHOⅠ级)、25例高级别脑膜瘤(WHOⅡ~Ⅲ级)患者的DWI资料,并将其分为低级别组、高级别组,分别测量ADC值,比较两组患者之间ADC值的差异,绘制ROC曲线分析ADC值对高级别脑膜瘤的最佳诊断效能。结果:高、低级别脑膜瘤的ADC值分别为(0.72±0.10)×10~(-3)mm~2/s、(0.93±0.12)×10~(-3)mm~2/s,高级别脑膜瘤的ADC值明显低于低级别脑膜瘤,差异具有统计学意义(t=7.30,P0.01);ROC曲线分析显示ADC值用于诊断高级别脑膜瘤的最佳临界点为0.83×10~(-3)mm~2/s,其敏感度为84%,特异度为80.6%,准确度为82.1%。结论:磁共振DWI定量参数ADC值对高、低级别脑膜瘤具有较高的鉴别诊断价值,可为患者治疗方案的选择和预后的评估提供更多的信息。
[Abstract]:Objective: to investigate the effect of diffusion-weighted magnetic resonance imaging (DWI) on high magnetic resonance imaging (DWI). The value of differential diagnosis of low grade meningioma. Methods: the DWI data of 31 patients with low grade meningioma confirmed by pathology were analyzed retrospectively and divided into low grade group and high grade group, and 25 cases of high grade meningioma were classified into low grade group and high grade group. The ADC value was measured, the difference of ADC value between the two groups was compared, and the ROC curve was drawn to analyze the best diagnostic efficacy of ADC value for high-grade meningioma. The ADC values of low-grade meningiomas were 0.72 卤0.10) 脳 10 ~ (-3) mm ~ (-1) ~ 0.93 卤0.12) 脳 10 ~ (-3) mm ~ (-1) / s, respectively. The ADC value of high-grade meningiomas was significantly lower than that of low-grade meningiomas. The analysis of ADC curve showed that the best critical point for the diagnosis of high-grade meningioma was 0.83 脳 10 ~ (-3) mm ~ (-1) / s, the sensitivity was 84%, the specificity was 80.6 and the accuracy was 82.1.Conclusion: the quantitative parameter ADC of magnetic resonance DWI is high. Low grade meningioma has high value in differential diagnosis and can provide more information for the choice of treatment plan and the evaluation of prognosis.
【作者单位】：黄冈市中心医院医学影像科;
【分类号】：R445.2;R739.45

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