Ultrasound is an invaluable tool for the acute care surgeon since the information that it provides frequently plays a pivotal role in decision making. Nevertheless, surgeons still seem hesitant in employing the technique to its full potential. This series is therefore intended to provide acute care and also general surgeons with wide-ranging, practical information on point of care “surgically-oriented” clinical ultrasound. Each volume focuses on a key topic and explains the importance of ultrasound for decision making in emergency medicine and the management of critically ill patients. Clear guidance is offered in the interpretation of images and the integration of ultrasound into the diagnostic and treatment algorithm, to the benefit of patients.