A new method for fetal weight estimation using real-time ultrasound.
A method for estimating fetal weight by calculating an approximate fetal volume from abdominal area, head area and femur length has been developed. Birthweights were calculated within 48 h before delivery for 434 patients, using this method and two other methods already in widespread use. Statistical analysis of the three sets of predictions gave standard deviations of 297 g for the new method, compared with 323 g and 342 g for the other methods. Further analysis of the data showed that estimates closest to the true birthweight were obtained in 41% of cases by using the new method, and in 33% and 26% of cases using the other methods.
D000005:Abdomen / Q000033:anatomy & histology / Q000196:embryology; D000886:Anthropometry; D001724:Birth Weight; D005260:Female; D005333:Fetus / Q000033:anatomy & histology*; D006801:Humans; D007231:Infant, Newborn; D010294:Parietal Bone / Q000033:anatomy & histology / Q000196:embryology; D011247:Pregnancy; D014463:Ultrasonography / Q000379:methods*