[摘要] 目的 探讨基于MRI定量对恶性胸腹膜间皮瘤的早期诊断价值。 方法 选择2012年7月～2016年2月在我院就诊的疑似恶性胸腹膜间皮瘤患者27例作为研究对象，均接受MRI检查，以病理检查结果为金标准。 结果 27例疑似恶性胸腹膜间皮瘤患者经病理诊断证实18例为恶性胸腹膜间皮瘤。恶性胸腹膜间皮瘤患者MRI初始峰值、增强峰强度及平扫信号强度均显著高于肿瘤胸腹膜转移患者(P<0.05)。恶性胸腹膜间皮瘤患者ADC值显著低于肿瘤胸腹膜转移患者(P<0.05)。MRI对恶性胸腹膜间皮瘤的灵敏度、特异性、阳性及阴性预测值分别为88.9%、66.7%、84.2%和75.0%。 结论 基于MRI定量评估的恶性胸腹膜间皮瘤早期诊断具有较高的临床实用价值，可在临床推广使用。

    [关键词] MRI定量评估；恶性胸腹膜间皮瘤；肿瘤胸腹膜转移；早期诊断；病理诊断

    [中图分类号] R735.5；R445.2 [文献标识码] B [文章编号] 1673-9701(2017)12-0137-04

    [Abstract] Objective To evaluate the early diagnostic value of MRI quantification in malignant pleural and peritoneal mesothelioma. Methods Twenty-seven patients with suspected malignant pleural and peritoneal mesothelioma from July 2012 to February 2016 in our hospital were enrolled in this study. All of them were examined by MRI. The pathological results were the gold standard. Results Of the 27 patients with suspected malignant pleural and peritoneal mesothelioma ......