In 3D(short for three-dimensional) fetal scanning, the sound waves are sent at different angles. The returning echoes are processed by a sophisticated computer program resulting in a reconstructed three dimensional volume image.
3D multiplanar surface-rendered views may yield important information to assist in the diagnosis or exclusion of congenital uterine anomalies.
3D is rapidly acquired and can be saved. This can be later reviewed after the completion of scan.
3D volume can be studied in any desired plane when required.
When combined with techniques like saline infusion sonography or gel infusion sonography, it may be possible to visualise endometrial cavity and the lower genital tract in great detail.