The aim of this book is to inform interested readers about the advantages of colour Doppler and three-dimensional ultrasound in gynaecology, infertility and obstetrics. With extensive use of possible applications and illustrative figures of both normal and abnormal cases sonographers can enrich their knowledge of ultrasound scanning of female patients. Detailed explanation of colour and pulsed Doppler measurements and advances made by three-dimensional ultrasound are clearly stated for each diagnosis and clinical condition. This makes this book unique and useful for those who are deeply involved in ultrasound diagnosis but also for the beginners entering this dynamic field.