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为探讨磁共振成像（ＭＲＩ）和Ｂ超对卵巢肿瘤良恶性鉴别、定性及恶性肿瘤分期的诊断价值。采用双盲法对４２例（４９个病灶）均经手术、病理证实的卵巢肿瘤的ＭＲＩ及Ｂ超征象进行分析。计算各自的敏感性、特异性、准确性、并进行比较。表明ＭＲＩ和Ｂ超对卵巢肿瘤良恶性鉴别的敏感性、特异性、准确性分别为８８．１％／６１．９０％、９５．２％／７１．４３％、９１．６７％／６６．６７％，两者间存在显著差异（Ｐ＜０．０５），定性准确性分别为８０．９６％和５２．３８％（Ｐ＜０．０５），对恶性肿瘤的分期ＭＲＩ准确性达７７．８０％。显示ＭＲＩ扫描对卵巢肿瘤良恶性鉴别、定性均优于Ｂ超，对恶性肿瘤的ＭＲＩ分期亦有较大价值。当然，ＭＲＩ目前尚存在检查费用高、时间长、实时性较差以及对某些肿瘤的组织定性有一定限度，有待进一步探索和改进。
To investigate the diagnostic value of magnetic resonance imaging (MRI) and B ultrasound in differential diagnosis of benign and malignant ovarian tumors, as well as the qualitative and malignant tumor staging. Forty-two cases (49 lesions) underwent surgery and histopathology with MRI and B-ultrasound. Calculate their sensitivity, specificity, accuracy, and comparison. The results showed that the sensitivity, specificity and accuracy of MRI and B-ultrasonography were 88.1% / 61.90%, 95.2% / 71.43%, 91.67% / 66.67 % Respectively. There was significant difference between the two (P <0.05). The accuracy of the two methods were 80.96% and 52.38% (P <0.05) respectively. The staging MRI accuracy of malignant tumor was 77.80 %. MRI scan showed benign and malignant differentiation of ovarian tumors, qualitative are better than the B-, MRI staging of malignant tumors have great value. Of course, there are still high cost of MRI examination, a long time, poor real-time and some of the tumor tissue qualitative limitations, to be further explored and improved.