Sonographic determination of gestational age using multiple fetal growth parameters in third trimester

K.Kavitha; K.Sreelatha; P.Geeta Lakshmi M.D.; (OBG)

Volume : V, Issue : III, March - 2015

Sonographic determination of gestational age using multiple fetal growth parameters in third trimester

K. Kavitha, K. Sreelatha, P. Geeta Lakshmi M. D. , Obg

Abstract :

This study has been undertaken to precisely quantify the accuracy of prediction of gestational age by multiple fetal growth parameters obtained with single ultrasound examination in third trimester and to correlate it with actual gestational age derived from New Ballard neonatal scoring system. Methodology: 106 uncomplicated pregnant women, attending the antenatal clinic were selected.They were subjected to single ultrasonographic study to determine the gestational age by multiple fetal growth parameters.They were followed up till delivery and gestational age of neonate was evaluated by using New Bellard scoring system and this was taken as actual gestational age, which was compared with that obtained by ultrasound. Results: Using Multiple Fetal Growth Parameters, 90% cases had a difference within 2 weeks from the actual gestational age. In 37.73% , the mean gestational age coincided with actual gestational age.In 39.6%,there was a difference of 1 week and in 13.2%, there was a difference of 2 weeks. Conclusion : In order to improve the accuracy of prediction of gestational age by a single ultrasound examination at third trimester, one should utilize multiple fetal growth parameters and have their own standard values obtained from the population they are dealing with.