Doppler ultrasound in the assessment of suspected intra-uterine growth restriction

Small fetuses constitute a large heterogenous group that includes healthy small fetuses, chromosomally abnormal fetuses and fetuses suffering from utero-placental insufficiency leading to restriction in fetal growth. This review outlines the diagnosis of intra-uterine growth restriction and describes how to differentiate this group from the group of healthy small fetuses. This is very crucial in the management of small fetuses in order to avoid unnecessary intervention in the healthy group, as well as avoid stillbirth and neonatal mortality and morbidity.