The method know as three dimensional ultrasound scanning is that can be used during early pregnancy, it provides 3d images of the unborn child. Most of the time these images are rapidly captured and combined to produce a “4d ultrasound scan”.

Three dimensional scanning works in a similar way to the normal ultrasound scanning methods except that the ultrasound pulses are directed from multiple directions. The waves are redirected back then captured to provide info to construct a 3-dimensional image in in a similar manner to 3d pictures. 3d ultasound scanning was devised by stephen smith and olaf von ramm.

It is important to understand that sonologists worldwide have always conjured 3d images of anatomy or pathology in their minds while doing 2d scans. However, until recently it was almost impossibel to do this kind of reconstruction on on info using ultrasound. The advent of 4d scans for the first time allowed us a peek into the brain of a sonologist and so allowing us see the images on the ultrasound machine.

3d/4d imaging should utilize ultrasound energy following the same limits as conventional 2d ultrasound to create the 3d images. There is no data to suggest harm due to 3d ultasound scanning, its use in none medical situations should be undertaken with an understanding of the risks involved.