Book excerpt: With more than 400 projections presented, Merrill's Atlas of Radiographic Positioning and Procedures remains the gold standard of radiographic positioning texts. Authors Eugene Frank, Bruce Long, and Barbara Smith have designed this comprehensive resource to be both an excellent textbook and also a superb clinical reference for practicing radiographers and physicians. You'll learn how to properly position the patient so that the resulting radiograph provides the information needed to reach an accurate diagnosis. Complete information is included for the most common projections, as well as for those less commonly requested. UNIQUE! Collimation sizes and other key information are provided for each relevant projection. Comprehensive, full-color coverage of anatomy and positioning makes Merrill's Atlas the most in-depth text and reference available for radiography students and practitioners. Coverage of common and unique positioning procedures includes special chapters on trauma, surgical radiography, geriatrics/pediatrics, and bone densitometry, to help prepare you for the full scope of situations you will encounter. Numerous CT and MRI images enhance your comprehension of cross-sectional anatomy and help you prepare for the Registry examination. Bulleted lists provide clear instructions on how to correctly position the patient and body part when performing procedures. Summary tables provide quick access to projection overviews, guides to anatomy, pathology tables for bone groups and body systems, and exposure technique charts. Frequently performed projections are identified with a special icon to help you focus on what you need to know as an entry-level radiographer. Includes a unique new section on working with and positioning obese patients. Offers coverage of one new compensating filter. Provides collimation sizes and other key information for each relevant projection. Features more CT and MRI images to enhance your understanding of cross-sectional anatomy and prepare you for the Registry exam. Offers additional digital images in each chapter, including "stitching" for long-length images of the spine and lower limb. Standardized image receptor sizes use English measurements with metric in parentheses. Depicts the newest equipment with updated photographs and images.