This publication provides an up to date educational resource which will enable clinicians practising or training in intensive care, emergency medicine or anaesthesia to interpret patients' imaging investigations. The book is based on a series of problems about critically ill patients. The problems, which are of varying degree of difficulty, begin with a brief clinical history and an image or series of images; questions are asked about the images and answers are provided on the facing page. The book will also be useful for doctors from a broad range of specialities whose patients come to the ICU, including surgeons and physicians, as well as radiology trainees.