The thoroughly revised, updated Fourth Edition of this highly acclaimed classic remains the premier reference on the radiologic assessment of all acute illnesses and injuries. Written by experienced radiologists, the book provides up-to-date, authoritative, unambiguous guidelines on the use and interpretation of all relevant imaging studies--from conventional radiography to CT, MRI, and ultrasound. This edition features more CT, ultrasound, and MR images, providing a crystal-clear view of structures affected in emergency situations. The book details state-of-the-art applications of ultrasound for scrotal, gynecologic, and obstetrical emergencies and contemporary uses of CT for blunt abdominal and thoracic trauma, pulmonary embolism, acute aortic injury, and aortic dissection. Coverage of conventional radiography has been extensively revised and includes many new concepts on cervical spine, mid-face, and other injuries. Chapters on acute non-traumatic abdominal emergencies, abdominal trauma, and obstetric, gynecologic, and scrotal emergencies have been completely rewritten by experts on those specific topics. A Brandon-Hill recommended title.