The role of three-dimensional ultrasound in obstetrics

Three-dimensional ultrasound is a relatively new imaging modality with seve ral potential advantages over conventional two-dimensional sonography. Ther e is now increasing evidence that three-dimensional ultrasound can in many ways assist in the examination of the fetus. The enthusiasm generated by so me groups, however, is not universally shared. It is the aim of this review to summarize the contemporary role of three-dimensional ultrasound in obst etric sonography by giving a critical appraisal of the relevant literature published recently, with emphasis on first and second trimester anatomy and fetal organ and placenta volumetry. Curr Opin Obstet Gynecol 13:207-214. ( C) 2001 Lippincott Williams & Wilkins.