Book excerpt: Dr. Osborn's classic work, An Introduction to Cerebral Angiography, has now been completely revised, reorganized, and updated and expanded from an introductory book into a comprehensive, state-of-the-art reference on cerebral angiography. Coverage includes new information on vascular territories, film subtraction, and magnetic resonance angiography. The text is thoroughly illustrated with 1,200 radiographs and line drawings, all of them new to this volume. Boxed summaries are used throughout the text to highlight key points.