4d and 3d scans - baby ultrasound.co.uk
The method know as 3d ultrasound scanning is used in early pregnancy, it provides 3d images of the unborn child. Most of the time the ultrasound pictures are collected and joined together and made into a movie to produce a 4d ultrasound scan.
Three dimensional scanning works similarly to the traditional ultrasound except that the ultrasound waves are directed from multiple directions. The ultrasound pulses are reflected back and captured and provide information 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 worldwide always pictured three-dimensional images of the body in their minds whilst doing 2d scans. However, until recently it was impossible to do this type of reconstruction on on information using ultasound scanning. With the advent of baby 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/4d ultrasound 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 essential situations needs to be undertaken with an understanding of the risks that may exist.
