How to make it happen? I searched for similar cases online, but couldn't ﬁnd any. All I could ﬁnd was some examples of using ultrasound images for a 3D print of your unborn baby. So this was the ﬁrst time in the world someone was doing this. Luckily I got people at the Aava Medical Centre excited about the idea, and they helped me forward. I also contacted GE, a manufacturer of 4D ultrasound systems, and they advised me how to extract the right kind of ﬁles from the ultrasound machine.