3 D UltraSound

The principles of 3D ultrasound are the same as conventional ultrasound imaging except that an oscillating transducer allows sound echoes to be translated into a three-dimensional surface image. Although some vascular, soft tissue and cardiac applications exist, it is in the field of obstetrics where this technology has established itself. The technique is mainly aimed at antenatal facial and body imaging for the reassurance of expectant mothers.
A 3D ultrasound study in no way replaces diagnostic anatomical studies for confirmation of a normal pregnancy!
Conventional two-dimensional "slice" techniques remain the mainstay of obstetric and general diagnostic ultrasound