DOI: 10.36347/sajb.2018.v06i09.003

Pages: 623-626

Many fetal biometric parameters are extensively utilized for the estimation of fetal gestational age. We sought to analyze the difference in the mean fetal Transcerebellar diameter in second trimester among the consanguineous and non-consanguineous marriages in Indian population in this retrospective cross sectional study. Study was carried out in the Department of Radiology, Sree Balaji Medical College and Hospital, Chennai, from June 2017 – June 2018. A total of 1067 patients in their second trimester (18 – 24 weeks of gestation) were included in this study (740 Non consanguineous and 327 consanguineous marriages). Transcerebellar diameter was measured on ultrasound as the maximum diameter between the cerebellar hemispheres on axial section. Mean TCD was 20.8 mm in consanguineous marriages and 21.0 mm in non consanguineous marriages. There is no significant difference in mean TCD in Consanguineous marriages and non consanguineous marriages.