* The introduction of three-dimensional (3D) ultrasound techniques, with the option of calculating placental volume and measuring vascular indices, has created an excellent opportunity to study early changes in the uteroplacental circulation space, which includes the maternal spiral arteries and the intervillous space. This technology may allow a more direct evaluation of the abnormal placentation process thought to herald the development of preeclampsia.
* The aim of this study was to assess the usefulness of placental volume and 3D vascular indices as reliable predictors of early preeclampsia in comparison to uterine artery Doppler
