Sonographic fetal weight estimation in prolonged pregnancy: comparative study of two- and three-dimensional methods.
OBJECTIVES: To compare two-dimensional (2D) and three-dimensional (3D) ultrasound techniques, including volumetry of fetal thigh, for fetal weight (FW) estimation in prolonged pregnancy, and to develop a new FW estimation formula. METHODS: This prospective comparative study initially included 176 pregnant women. FW estimation was performed at >/= 287 days of gestation within = 4 days of delivery
