Examples of 4D ultrasound
The harmful effects of smoking during pregnancy on unborn babies may be seen in tiny movements in their faces using 4D ultrasound scans, British research has found.
(Sydney Morning Herald - World, )
An amazing 4D ultrasound video reveals the secrets of life before birth, showing a baby in the womb dancing, touching its toes, yawning, scratching its eyes and nose and even waving its hands.
(Daily Mail - Femail, )
See also examples for ultrasound.