ABSTRACT
This chapter focuses on clinical applications of Three-dimensional (3D) ultrasound in obstetrics. A novel application for volume sonography, which has been studied by Lee et al., is the use of fetal arm and leg volumes to assist in the accurate estimation of fetal weight. The role of volume sonography for the evaluation of the fetal surface, specifically for the visualization of facial grimaces and detailed limb movements, has been evaluated by Kurjak et al. to assess fetal neurobehavior, attempting to identify fetuses with abnormal in utero neurologic function. The major limitation to utilizing these various applications of 3D ultrasound in obstetrics remains the steep learning curve, in addition to added cost of some of the software mentioned. Volume sonography can be an added benefit in several areas, including evaluation of placental masses, placental localization for suspected placenta previa, and whenever there may be retained products of conception.
