Zandt-Stastny D, Thorsen M K, Middleton W D, Aiman J, Zion A, McAsey M, Harms L
Department of Radiology, Medical College of Wisconsin, Milwaukee, WI 53226.
AJR Am J Roentgenol. 1989 Jan;152(1):91-5. doi: 10.2214/ajr.152.1.91.
Sonographic visualization of the cumulus oophorus or of morphologic alterations in the wall of the dominant follicle have been reported to be reliable signs of imminent ovulation when conventional transabdominal sonography is used. To determine if transvaginal sonography could allow a more frequent and confident prediction of imminent ovulation, we prospectively monitored 22 ovulatory menstrual cycles in four women undergoing artificial insemination and in 13 normally menstruating volunteers. Scanning was done on alternate days in the periovulatory period; a 7.5-MHz transvaginal transducer was used. Despite the improved resolution obtained with transvaginal sonography, confident identification of the cumulus oophorus or of mural changes in the follicle was not possible in any of the cycles followed. No other consistent follicular characteristic predicted imminent ovulation. We conclude that confident prediction of imminent ovulation is not possible with sonographic analysis.
据报道，当使用传统经腹超声检查时，超声显示卵丘或优势卵泡壁的形态学改变是即将排卵的可靠征象。为了确定经阴道超声检查是否能更频繁且准确地预测即将排卵，我们前瞻性地监测了4名接受人工授精的女性和13名正常月经周期的志愿者的22个排卵周期。在排卵期隔天进行扫描；使用7.5兆赫的经阴道探头。尽管经阴道超声检查提高了分辨率，但在所监测的任何周期中，均无法可靠地识别卵丘或卵泡壁的变化。没有其他一致的卵泡特征能预测即将排卵。我们得出结论，超声分析无法准确预测即将排卵。
