A STUDY ON FETAL TRANSCEREBELLAR DIAMETER TO ABDOMINAL CIRCUMFERENCE (TCD/AC) AND TO FEMUR LENGTH RATIO (TCD/FL) IN THE ASSESSMENT OF NORMAL FETAL GROWTH

Intrauterine growth retardation (IUGR) is a major risk factor for perinatal mortality and morbidity. Trans-cerebellar diameter to abdominal circumference ratio (TCD/AC) is a gestational age dependent parameter. IUGR due to uteroplacental insufficiency can present as isolated femur length reduction. So, trans-cerebellar diameter to femur length ratio (TCD/FL) can be useful in early detection of IUGR. In this prospective study, 171 patients presenting for routine antenatal check up with cumulative ultrasound age (CUA) between 14-40 weeks were included. TCD/AC and TCD/FLwere studied for individual subgroups formed according to CUA.