Prediction of the extremes of birth weight from a single ultrasound examination at 34 weeks of gestation.
One hundred and forty patients were subjected to ultrasound examination at about 34 weeks of gestation. Using the product of the biparietal diameter measurement and either the fetal abdominal circumference or abdominal area measurement, it was possible to predict three-quarters of both large for dates infants (false positive rate, 21.3%) and small for dates infants (false positive rate, 15.7%). Using the presence of a head and/or abdomen measurement above the 90th percentile for gestation, it was possible to predict 62.5% of large for dates infants (false positive rate, 15.7%). Using the presence of any measurement below the 10th percentile, it was possible to predict 81.3% of small for dates infants (false positive rates, 21.3%).
D000886:Anthropometry / Q000379:methods*; D001724:Birth Weight; D005189:False Positive Reactions; D005260:Female; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D011336:Probability; D014463:Ultrasonography