The benefit in using Contrast-Enhanced Ultrasound (CEUS) has been proven over many years, not only for liver disease but also for a range of extra-hepatic indications. Liver guidelines have now also been updated on a larger international scale by a team from Europe as well as by experts from Asia and the USA. This book should help not just towards a start into a new and exciting imaging world, but also to support those who already perform CEUS on a daily basis.