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. The second edition of this book is
a step by step guide to 3D and 4D ultrasound in obstetrics, gynaecology and
infertility. Divided into seven sections, it begins with discussion on
instruments and scanning techniques, and normal pelvic anatomy by ultrasound.
The following chapters examine uterine lesions and the use of ultrasound for
infertility evaluation. The final sections discuss 3D/4D ultrasound in early
pregnancy