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首页> 外文期刊>Ultrasound in obstetrics & gynecology: the official journal of the International Society of Ultrasound in Obstetrics and Gynecology >Fetal head-symphysis distance: a simple and reliable ultrasound index of fetal head station in labor.
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Fetal head-symphysis distance: a simple and reliable ultrasound index of fetal head station in labor.

机译：胎头-肩ym距：分娩时胎头工作站的简单可靠的超声指标。

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摘要

To assess the reproducibility of measurement of a new sonographic index of fetal head station in labor, the fetal head-symphysis distance (HSD), using three-dimensional ultrasound, and its correlation with digital assessment of fetal head descent and with the angle of progression (AoP).Three-dimensional (3D) ultrasound volumes were acquired from 47 nulliparous women in active labor following assessment of fetal head station with digital examination. The HSD (the distance between the lower edge of the pubic symphysis and the nearest point of the fetal skull) was measured independently by two operators in order to evaluate intra- and interobserver reproducibility. The correlation between HSD, AoP and fetal head station was evaluated using regression analysis. Using 3D tomographic ultrasound imaging (TUI), measurements of the HSD were obtained in different parasagittal planes to evaluate the influence of inaccurate alignment of the probe with the midline of the pelvis.Measurement of HSD showed high intraobserver (intraclass correlation coefficient (ICC)?=?0.995; 95% CI, 0.991-0.997) and interobserver (ICC?=?0.991; 95% CI, 0.984-0.995) reliability. In addition, a high correlation was demonstrated between mid-sagittal and parasagittal HSD measurements. HSD showed significant negative correlation with both fetal head station and AoP.Fetal HSD is a simple and reliable method for the assessment of fetal head descent in labor. Copyright ? 2012 ISUOG. Published by John Wiley & Sons, Ltd.
机译：为了评估在分娩中新的胎儿头超声检查指数的测量的可重复性，使用三维超声的胎儿头对称距离（HSD）及其与胎儿头下降的数字评估和进展角度的相关性（AoP）。在通过数字检查评估胎头后，从47名从事活动分娩的未产妇中获得了三维（3D）超声量。 HSD（耻骨联合的下缘与胎儿头骨的最近点之间的距离）由两名操作员独立测量，以评估观察者之间和观察者之间的可重复性。使用回归分析评估了HSD，AoP和胎儿头部之间的相关性。使用3D断层扫描超声成像（TUI），在不同的矢状旁平面获得了HSD的测量值，以评估探头与骨盆中线不正确对准的影响.HSD的测量显示观察者内（类内相关系数（ICC）？ ≥0.995; 95％CI，0.991-0.997）和观察者间（ICC≥＝ 0.991; 95％CI，0.984-0.995）可靠性。此外，矢状HSD测量与矢状旁HSD测量之间存在高度相关性。 HSD与胎儿头位和AoP均呈显着负相关。胎儿HSD是评估分娩中胎儿头下降的一种简单可靠的方法。版权？ 2012年ISUOG。由John Wiley＆Sons，Ltd.出版

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