The method know as three dimensional ultrasound is used in early pregnancy, it can provide 3d pictures of the fetus. Most times these pictures are rapidly captured and combined and animated to make a 4d scan.

Three dimensional scans works in the same manner to the usual ultrasound methods except that the ultrasound scanning pulses can be sent from multiple directions. The ultrasound pulses are redirected back then captured to provide information to construct a 3d picture in much the same way as 3d pictures. 3d ultrasound was devised by olaf ramm and stephen smith.

It’s important to understand that sonologists around the world always conjured 3d pictures of anatomy or pathology in their minds while doing their 2d scans. However, until recently it was very difficult to do this kind of reconstruction on on patient information using ultrasound. With the introduction of ultrasound baby scans for the first time allowed us a peek into the mechanics of thinking of a sonologist and allowing us to reconstruct the images on the ultrasound machine.

3d imaging should utilize ultrasound energy following the same limits as conventional 2d ultrasound to create the 3d images. While there is no information of harm due to 3d ultasound scanning, its use in none medical situations needs to be undertaken with an understanding of the risks that exist.