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目的 了解 Ｂ超诊断卵巢肿瘤的准确性。方法 分析本院１９９４～１９９７ 年经手术治疗的６３８ 例卵巢肿瘤术前 Ｂ超诊断情况，并将结果与绝经与否、血清 Ｃ Ａ１２５ 和临床分期相结合进行分析比较。结果 Ｂ超对卵巢良性肿瘤的诊断敏感度及阴性预测率分别为 ９８．９％ 和 ９９．０％ ，交界性和恶性卵巢肿瘤的敏感性分别为 ３０．０％ 和６３．４％ ，对早期恶性肿瘤仅为３５．０％ 左右，绝经前后的准确性无显著性差异（ Ｐ＞ ０．０５），结合血清 Ｃ Ａ１２５ 后对恶性肿瘤诊断的敏感度及阳性预测率均有提高（ Ｐ＜ ０．０５）。结论 Ｂ超对卵巢良性肿瘤诊断准确率高，对交界瘤及早期卵巢恶性肿瘤敏感度低，结合血清 Ｃ Ａ１２５ 后将有助于提高对卵巢恶性肿瘤的诊断准确性。
Objective To understand the accuracy of B-ultrasound in the diagnosis of ovarian tumors. Methods The preoperative ultrasonographic diagnosis of 638 ovarian tumors treated in our hospital from 1994 to 1997 was analyzed. The results were compared with those of menopausal patients, serum C A125 and clinical stage. Results The diagnostic sensitivity and negative predictive value of B-ultrasound for benign and malignant ovarian tumors were 98.9% and 99.0%, respectively. The sensitivity of borderline and malignant ovarian tumors was 30.0% and 63.4% There was no significant difference in the accuracy of premenopausal and postmenopausal women (P> 0.05). The sensitivity and positive predictive value of combined detection of serum C A125 and malignant tumor both increased (P <0 .05). Conclusion Ultrasonography has high diagnostic accuracy for benign ovarian tumors and low sensitivity to borderline tumors and early ovarian malignancies. Combined with serum C A125, it will be helpful to improve the diagnostic accuracy of malignant ovarian tumors.