The Pocket Guide has grown in use by students and radiographers since it was first published in 1989. Many new features have been added since that time. Recent additions have included digital radiography notations, digital collimation, charts for automatic exposure control (AEC) techniques, and compensating filter notations. The Pocket Guide can also be used to keep a record of student competencies. This edition is full-featured, with the inclusion of an optimal radiograph for each projection. We are encouraged that the Pocket Guide is the most widely used guide among students. Users are encouraged to send us suggestions for improvements. We sincerely hope you will find this edition of the Pocket Guide useful in your everyday work as a radiographer. Recognition of Previous Author The authors thank Philip W. Ballinger, PhD, RT(R), FAEIRS, FASRT, the second author of Merrill’s Atlas, for his work on the previous five editions of this Pocket Guide. Dr. Ballinger developed the concept of providing students with a pocket-sized “guide” containing the essential projections of the Atlas in 1987. Eugene D. Frank, MA, RT(R), FASRT, FAEIRS, the third author of the Atlas continued to improve the Pocket Guide during his years leading the author team. The Pocket Guide has proven to be a very popular and valuable resource for radiography students since its inception. Merrill’s Pocket Guide to Radiography concisely presents essential positioning information for the most frequently requested projections in a format designed for quick reference.
This edition offers step-by-step explanations of methods to position the patient and body part for more than 150 of the most commonly requested radiography projections, including mobile. Its format makes the Pocket Guide particularly easy to use, with each projection presented in a broadside, twopage spread. Each projection presentation includes the following information:
• Patient position
• Part position
• Central ray angulation
• Photograph of properly positioned patient
• Footnote that references information in the 14th edition of Merrill’s Atlas
• Exposure technique chart with space for writing manual and automatic exposure control (AEC) technical factors (a sample of this chart with instructions for completion may be found on the next page after the contents)
• Competency check-off for students—blank lines are present on each projection page for the instructor to sign and date after the student has demonstrated competency for that projection
• Specific collimation sizing for use with DR systems Features designed to enhance the utility of the Pocket Guide include section dividers with tabs, which make finding the beginning of each section easier, and abbreviations and external landmarks printed on the inside of the covers for quick reference.