用于增长评估的胎儿超声波多普勒参数的可复制性
Raghda Zidan Sweid1, Vera Donadono1, Davide Casagrandi1,2
1Fetal Medicine Unit, Elizabeth Garrett Anderson Wing, University College London Hospitals NHS Foundation Trust, 250 Euston Road, London, NW1 2BU, UK.
Archives of gynecology and obstetrics
|January 17, 2025
概括
胎儿超声波多普勒测量用于评估胎儿生长的可重复性是可变的. 脑比率 (UCR) 和动脉脉动指数 (UA PI) 显示出临床使用的最佳可重现性.
科学领域:
- 围产儿医学 围产儿医学
- 胎儿生理学 胎儿生理学
- 诊断性的超声波检查
背景情况:
- 胎儿超声波多普勒测量对于评估胎儿生长和福祉至关重要.
- 为了质量控制和准确解释这些测量,需要标准化的参考范围.
研究的目的:
- 建立胎儿超声波多普勒测量的可重现性参考标准.
- 评估常用的多普勒指数和比率的观察者内部和观察者间的变化.
主要方法:
- 有望招募110名正常单子妊娠的女性.
- 双重测量动脉 (UA) 和中脑动脉 (MCA) 多普勒指数 (PI,RI) 和比率 (CPR,UCR) 由两个盲人超声波仪.
- 分析使用布兰德-阿尔特曼图表来确定绝对值和z-score的协议极限 (LOA).
主要成果:
- 绝对值的总体可重现性是可变的,z-score的高度可变.
- 绝对值的最广泛的95% LOA:0.3 (UA PI),0.7 (MCA PI),0.9 (CPR),0.3 (UCR). 在绝对值中,最广泛的95% LOA为:0.3 (UA PI),0.7 (MCA PI),0.9 (CPR),0.3 (UCR). 在绝对值中,最广泛的95% LOA为:0.3 (UA PI),0.7 (MCA PI),0.9 (CPR),0.3 (UCR).
- 最广泛的95%的z-score LOA: 1.9 (UA PI),2.1 (CPR),1 (UCR);观察者内部的可复制性略高于观察者之间的可复制性.
结论:
- 建立了胎儿多普勒参数可重现性的参考标准.
- 在不同的容器,指数和观察者之间,可重现性是可变的.
- 脑比率 (UCR) 和动脉脉动指数 (UA PI) 显示出最佳的可重现性,并被推用于临床使用和研究.
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