Our granddaughter had her prenatal 3D ultrasound scan yesterday. She said “Hey guys. I’m 205 days pregnant. That means, only 75 days left.” She emailed me a set of the images.
This is the face of our first great grandson as seen in his mother’s womb with the aid of advanced ultrasonographic techniques. I got curious about the technology, so I looked it up; there was a brief description on Wikipedia.
From Wikipedia:
3D ultrasound is a medical ultrasound technique, often used in obstetric ultrasonography (during pregnancy), providing three-dimensional images of the fetus.
There are several different scanning modes in medical and obstetric ultrasound. The standard common obstetric diagnostic mode is 2D scanning.[1] In 3D fetal scanning, however, instead of the sound waves being sent straight down and reflected back, they are sent at different angles. The returning echoes are processed by a sophisticated computer program resulting in a reconstructed three-dimensional volume image of the fetus’s surface or internal organs, in much the same way as a CT scan machine constructs a CT scan image from multiple x-rays.