For students and small animal veterinary practitioners, Kealy (veterinary surgery and companion animal medicine, U. College Dublin, Ireland) et al. offer a guide to the principles of diagnostic radiology and ultrasonography for use with dogs and cats. Chapters are organized by body system and describe and illustrate normal anatomy and radiologic signs of abnormalities, as well as the ultrasonographic appearance of many conditions. This edition has been updated with the latest digital imaging in CT, MRI, and nuclear medicine; developments like portosystemic shunts, color Doppler images, thyroid scintigraphy, computed tomography, and digital radiography; and how to avoid common errors in interpretation."