Prediction of Transverse cerebellar diameter as a better indicator for estimation of gestational age in Second trimester

Raman Khare; Rajni Patel; Manu Gupta; Shalik R Adhikari; Hema Nagpal; Renu Mishra

Volume : IX, Issue : IV, April - 2019

Prediction of Transverse cerebellar diameter as a better indicator for estimation of gestational age in Second trimester

Raman Khare, Rajni Patel, Manu Gupta, Shalik R Adhikari, Hema Nagpal, Renu Mishra

Abstract :

INTRODUCTION: Gestational age determination is of utmost importance in the care and management of the pregnant women. Transverse cerebellar diameter (TCD) is a useful biometric parameter in estimating gestational age (GA) in the second trimester. TCD may be a more reliable predictor than biparietal diameter, since the posterior fossa is not affected by external pressure including fetal malposition, eech presentation or oligohydramnios, which may induce distortion of the fetal head. TCD can reliably be used in cases of femur achondroplasia where femur length is unreliable. AIMS AND OBJECTIVE: To predict gestational age using TCD and BPD measurement in second trimester and correlate the predictions of gestational age from second trimester by compå TCD and BPD. MATERIALS AND METHODS: Present study was done on 100 pregnant women in the Department of Radio diagnosis, SIMS, Hapur from the month of October 2016 to March 2017. Study group included antenatal women between 14 to 28 weeks of gestation by applying simple random technique. Ultrasonography (USG) were done between 14 to 28 weeks of POG, after filling PNDT form. RESULT: The Pearson’s correlation coefficient was found to be 0.958 for TCD and 0.877 for BPD. Although correlation was found to be statistically significant in both TCD and BPD groups but GA had better correlation with TCD than the BPD (p<0.001). CONCLUSION: The present study has revealed that both TCD and BPD have good correlation with the LMP for the prediction of gestational age in second trimester, however TCD has a better correlation with LMP than BPD for the gestational age estimation.