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目的：探讨经阴道超声诊断女性直肠癌的临床应用价值。方法：彩用ＡｌｏｋａＳＳＤ－６５０和ＳＳＤ－１２００型超声诊断仪，５ＭＨｚ凸阵端扫阴道探头和７．５ＭＨｚ双平面直肠探头经阴道超声检查诊断了６８例正常女性直肠，经阴道与经直肠超声检查了３７例女性直肠癌。结果：经阴道超声正常直肠超声解剖结构显示清晰，经阴道超声检查成功率（１００％）高于经直肠超声（９１．８９％）。其分期诊断准确率（８３．７８％）低于经直肠超声（９２．３％），但二者间无显著性差异。经阴道与经直肠超声对直肠癌的定位诊断准确率均为１００％。结论：经阴道超声诊断女性直肠癌有很高的定位诊断与分期诊断准确率，检查成功率高且诊断范围广，弥补了经直肠超声的诊断局限性，对女性直肠癌术前诊断与术后随访均具有重要的临床应用价值。
Objective: To explore the clinical value of transvaginal ultrasound in the diagnosis of female rectal cancer. Methods: Transvaginal ultrasonography was used to diagnose rectal, transvaginal, and transrectal ultrasonography in 68 normal women using an Aloka SSD-650 and SSD-1200 Ultrasonic Diagnostic System, a 5 MHz convex array end-sweeping vaginal probe, and a 7.5 MHz biplanar rectal probe. 37 cases of female rectal cancer. RESULTS: Transvaginal sonography showed normal anatomy of the rectal ultrasound. The success rate of transvaginal ultrasound examination (100%) was higher than that of transrectal ultrasound (91.89%). The accuracy of its staging (83.78%) was lower than that of transrectal ultrasound (92.3%), but there was no significant difference between the two. Transvaginal and transrectal ultrasonography for rectal cancer diagnosis accuracy rate are 100%. Conclusion: Transvaginal ultrasound diagnosis of rectal cancer in women has high diagnostic accuracy and staging accuracy. The high success rate of diagnosis and wide diagnostic range make up for the limitations of transrectal ultrasound in the diagnosis and preoperative diagnosis and postoperative management of female rectal cancer. Follow-up has important clinical application value.