Uterine venous blood flow in normal and complicated pregnancies: a methodological study.
OBJECTIVE.: Finding of venous congestion at histopathological examination of placenta indicates the importance of abnormal placenta-maternal venous return. The present descriptive study investigates the possibility of recording Doppler flow signals from maternal uterine veins. MATERIAL AND METHODS.: Transabdominal Doppler ultrasound examinations of uterine veins on both sides of uterus were perfor