An algorithmic approach to accurate ultrasonic fetal weight estimation.
A flexible model is proposed for estimation of fetal weight from biparietal, occipitofrontal, and average abdominal diameters and femoral shaft length. Individual formulas are selected by gestational age-independent decision rules that reflect fetal body proportions. The correlation coefficient for observed and predicted weight was .994 in a series of 96 fetuses studied within 36 hours of delivery, with 20% of cases having error less than 10 g/kg and 90% with error less than 80 g/kg.
D001724:Birth Weight; D001835:Body Weight; D005314:Embryonic and Fetal Development; D005260:Female; D005333:Fetus / Q000033:anatomy & histology; D006801:Humans; D007231:Infant, Newborn; D008954:Models, Biological; D011247:Pregnancy; D011336:Probability; D014463:Ultrasonography / Q000379:methods*