Patterson R M
Obstet Gynecol. 1985 Mar;65(3):330-2.
Fetal weight was estimated clinically and by two ultrasonographic methods in 62 patients in labor at term. Maternal obesity precluded clinical estimation of fetal weight in eight patients (12.9%) and a combination of maternal obesity, anterior placentation, and oligohydramnios prevented ultrasonographic fetal measurement in four patients (6.5%). In 43 patients, in whom all three methods of estimate were obtainable, a regression equation using ultrasonically measured fetal abdominal circumference provided the greatest accuracy. However, significant interpatient variability affecting the accuracy of all three methods of estimating fetal weight may limit the clinical application of these measurement techniques.
对62例足月分娩的患者采用临床评估及两种超声检查方法估计胎儿体重。8例患者（12.9%）因母体肥胖无法进行胎儿体重的临床评估，4例患者（6.5%）因母体肥胖、前置胎盘及羊水过少而无法进行超声胎儿测量。在可采用所有三种估计方法的43例患者中，使用超声测量的胎儿腹围的回归方程准确性最高。然而，影响所有三种胎儿体重估计方法准确性的患者间显著差异可能会限制这些测量技术的临床应用。
