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 of "all" relevant inaging studies--from conventional radiography to CT, MRI, and ultrasound. This edition features more CT, ultrasound, and MR images, state-of-the-art coverage of the expanded role of these modalities, and many new concepts on conventional radiography. 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.