3D ultrasound shows a still image of a foetus, far more detailed than the 2D flat grey scale imaging. 4D ultrasound is more advanced, showing a moving image, allowing obstetricians to evaluate foetal well-being. It is also used by gynaecologists to examine uterine anomalies. This book is a practical guide to the use of 3D and 4D ultrasound in obstetrics and gynaecology. Divided into three sections, the text begins with an introduction to ultrasound, its working and application, its function, software, and volume calculation tools. Section Two covers clinical applications...