ABSTRACT
Objective: To create a reference centile chart for transverse cerebellar diameter in Thai fetuses throughout gestation. Methods: A total of 780 pregnant women between 13-40 weeks gestation, who attended at the antenatal clinic at Siriraj Hospital, Mahidol University, Bangkok, were recruited. Each fetus was measured only once for the purpose of this study. The mean and fitted centiles were estimated at each week of gestation using linear regression modeling. Results: A total of 752 fetuses were measured for fetal transverse cerebellar diameter. Linear regression models were fitted to estimate the meant 95% confidence interval for transverse cerebellar diameter at each gestational age. The centile chart of this parameter was also presented. Conclusion: Reference centile chart for fetal transverse cerebellar diameter of Thai fetuses was created.