Scientific basis for standardization of fetal head measurements by ultrasound: a reproducibility study.
Scientific basis for standardization of fetal head measurements by ultrasound: a reproducibility study.
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DOI：
10.1002/uog.15956
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发表时间：
2016-07
影响因子：
7.1
通讯作者：
Papageorghiou, A. T.
中科院分区：
文献类型：
--
作者：
Napolitano, R.;Donadono, V.;Ohuma, E. O.;Knight, C. L.;Wanyonyi, S. Z.;Kemp, B.;Norris, T.;Papageorghiou, A. T.
关键词：
比较超声测量胎儿头围（HC）和双顶径（BPD）的标准方法（外到外（BPDoo）与外到内（BPDoi）卡尺放置），并比较经丘脑（TT）与经心室（TV）平面中这些测量值的采集。本研究使用了从参与INTERGROWTH-21项目牛津组的女性中获得的超声图像。在研究的第一阶段，在存储的图像上测量BPDoo和BPDoi。在第二阶段，由成对的超声医师在TT和TV平面获得BPD、枕额径（OFD）和HC的真实的实时测量值。使用Bland-Altman图评估由相同（观察者内）和不同（观察者间）超声医师进行的测量的再现性，以及卡尺放置和在不同平面获得的测量的再现性。在第一阶段，我们分析了108个单胎胎儿的超声图像。BPDoo和BPDoi的平均观察者内和观察者间差异< 2%（1.34 mm），95%一致性限值< 5%（3 mm）。用于测量BPD的两种方法均未显示出一致的更好的再现性。在第二阶段，我们分析了100个不同的单胎胎儿的超声图像。在TV和TT平面上获得的所有胎头测量值的平均观察者内和观察者间差异< 1%（2.26 mm），95%一致性界限< 8%（14.45 mm）。两种测量胎头的平面均未显示出更好的可重复性。使用椭圆装置测量HC与根据BPD和OFD计算的HC具有相同的重现性。OFD本身是所有胎头测量结果中重复性最差的。BPDoi和BPDoo的测量具有相同的重现性;然而，我们认为BPDoo应用于临床实践，因为它允许测量胎儿HC并与新生儿HC进行比较。对于所有的头部测量，TV和TT平面在任何胎龄提供同样可重复的值，HC值在两个平面中相似。TT平面中的胎头测量是优选的，因为该平面中的国际标准是可用的;然而，TV平面中的测量可以在相同的标准上绘制。Copyright © 2016 ISUOG.发布者：John Wiley & Sons Ltd.链接评论：妇产科超声2016; 48：26-26
To compare the standard methods for ultrasound measurement of fetal head circumference (HC) and biparietal diameter (BPD) (outer‐to‐outer (BPDoo) vs outer‐to‐inner (BPDoi) caliper placement), and compare acquisition of these measurements in transthalamic (TT) vs transventricular (TV) planes. This study utilized ultrasound images acquired from women participating in the Oxford arm of the INTERGROWTH‐21st Project. In the first phase of the study, BPDoo and BPDoi were measured on stored images. In the second phase, real‐time measurements of BPD, occipitofrontal diameter (OFD) and HC in TT and TV planes were obtained by pairs of sonographers. Reproducibility of measurements made by the same (intraobserver) and by different (interobserver) sonographers, as well as the reproducibility of caliper placement and measurements obtained in different planes, was assessed using Bland–Altman plots. In Phase I, we analyzed ultrasound images of 108 singleton fetuses. The mean intraobserver and interobserver differences were < 2% (1.34 mm) and the 95% limits of agreement were < 5% (3 mm) for both BPDoo and BPDoi. Neither method for measuring BPD showed consistently better reproducibility. In Phase II, we analyzed ultrasound images of 100 different singleton fetuses. The mean intraobserver and interobserver differences were < 1% (2.26 mm) and the 95% limits of agreement were < 8% (14.45 mm) for all fetal head measurements obtained in TV and TT planes. Neither plane for measuring fetal head showed consistently better reproducibility. Measurement of HC using the ellipse facility was as reproducible as HC calculated from BPD and OFD. OFD by itself was the least reproducible of all fetal head measurements. Measurements of BPDoi and BPDoo are equally reproducible; however, we believe BPDoo should be used in clinical practice as it allows fetal HC to be measured and compared with neonatal HC. For all head measurements, TV and TT planes provide equally reproducible values at any gestational age, and HC values are similar in both planes. Fetal head measurement in the TT plane is preferable as international standards in this plane are available; however, measurements in the TV plane can be plotted on the same standards. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd. Linked Comment: Ultrasound Obstet Gynecol 2016; 48: 26–26
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DOI：
10.1111/1471-0528.12313
发表时间：
2013-09-01
影响因子：
5.8
作者：
Papageorghiou, A. T.;Sarris, I.;Salomon, L. J.
通讯作者：
Salomon, L. J.
影响因子：
7.1
作者：
Chan, L. W.;Fung, T. Y.;Lau, T. K.
通讯作者：
Lau, T. K.
影响因子：
0.9
作者：
DETER, RL;HARRIST, RB;CARPENTER, RJ
通讯作者：
CARPENTER, RJ
影响因子：
5.8
作者：
Ioannou, C.;Javaid, M. K.;Papageorghiou, A. T.
通讯作者：
Papageorghiou, A. T.
影响因子：
7.1
作者：
Gull, I;Fait, G;Wolman, I
通讯作者：
Wolman, I