This study aims to evaluate the patterns of aortic isthmus Doppler in fetuses diagnosed with early fetal growth restriction (FGR) and to correlate these findings with the severity of FGR and other Doppler parameters.
A cross-sectional comparative observational study will be conducted on singleton pregnant women attending the fetal medicine unit at Assiut University Hospital. Participants will be divided into two groups: fetuses with FGR and normal controls.
Doppler measurements including aortic isthmus indices, uterine artery, umbilical artery, middle cerebral artery, cerebroplacental ratio, and ductus venosus will be assessed at a single time point. The study will help to clarify the clinical value of aortic isthmus Doppler in early detection and assessment of fetal compromise in FGR cases.