The method know as 3d ultrasound scanning is used when a woman is in early pregnancy, it provides 3d images of the unborn baby. Most times these images are collated and joined together and animated to make a 4d scan.

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

It’s important to understand that sonologists around the world have always conjured 3d pictures of anatomy or pathology in their minds whilst doing 2d scans. However, until recently it was impossible to do this type of reconstruction on on info using ultasound scanning. With the advent of 4d scans for the first time allowed us a view into the 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. There is no data to suggest harm due to 3d ultrasound, its use in none essential situations should be undertaken with an understanding of the risks that exist.