Radiographic Techniques and Image Evaluation


Book Description

I welcome this book on behalf of radiographic practitioners every where. It arrives at a time of rapid change within the world of medical imaging where advancing technology and changes in employment conditions are having a major effect on the everyday working practices of those who physically and clinically direct radiation. The development of radiography as a graduate profession within the United Kingdom provides the opportunity for role extension and role fulfilment for radiographers. Moves toward standardized quality assurance and quality control programmes in radiography and radi ology include not only the audit of equipment but also working practices. The science and art of image production form the corner stone for these working practices where radiographic skills and image quality lead to the provision of a caring, quality service. This book will help the development and continuation of this programme by affording detailed information on a wide range of imaging procedures for radiographers, including positioning and procedural protocols, as well as image acceptance criteria. A major feature of this book is the systematic chronological presentation of its content which makes it a boon to both the new and experienced practitioner as well as those studying for a radiography degree or involved in the first year of the FRCR examination. Elizabeth Unett and Amanda Royle are experienced radiographers and educationists in imaging sciences. They have both played a major role in the development of clinical education programmes for diploma and undergraduate radiography students.




Small Animal Radiographic Techniques and Positioning


Book Description

Small Animal Radiographic Techniques and Positioning is a practical, clinically applicable manual designed to aid veterinary technicians and nurses in correcting common artifacts in both film and digital radiography and in positioning the small animal patient for clear and consistent radiographs. Detailed positioning techniques are provided for each commonly radiographed body segment, including positioning aids, alternative restraint methods, and examples of the corresponding correct or incorrect radiographs. Species covered include dogs, cats, birds, and common exotics. The book begins with an overview of radiographic technique, darkroom maintenance, digital and film-screen imaging, then offers a section on small animal positioning, including some exotic species positioning techniques, with the final section presenting information on contrast media and special contrast enhanced procedures. A companion website provides the images from the book in PowerPoint and study questions and answers at www.wiley.com/go/ayers. Highly illustrated, Small Animal Radiographic Techniques and Positioning is a complete resource for any veterinary technician or student to quickly find imaging information and improve the clarity of small animal radiographs.




Bontrager. Manual de Posiciones Y Técnicas Radiológicas


Book Description

Este manual que presenta 217 proyecciones o posiciones, ayuda al técnico a reforzar sus habilidades básicas en radiología y ofrece listas de instrucciones, junto con fotografías que muestran la correcta colocación de los pacientes, para ayudar a posicionarlos de manera segura y fiable durante los estudios radiográficos más frecuentes. Incorpora nuevas gráficas de técnicas actualizadas que recogen las más recientes recomendaciones para radiografía computarizada y digital. Asimismo, incluye nuevas imágenes radiográficas basadas en los estándares de posicionamiento en las que se describen cada una de las posiciones, acompañadas de un breve resumen de los factores de calidad que se pueden utilizar como matriz para la evaluación de una imagen. Además, añade una nueva posición a la AP axial apical, con información y fotografías. Manual que ayuda al técnico a reforzar sus habilidades básicas en radiología. Presenta 217 proyecciones o posiciones junto a listas de instrucciones y fotografías que muestran un posicionamiento más seguro y fiable de los pacientes durante los estudios rafiográficos. Incorpora gráficas de técnicas actualizadas que recogen recomendaciones recientes para radiografía computarizada y digital. Incluye nuevas imágenes radiográficas, basadas en los estándares de posicionamiento que describen cada una de las posiciones y añade una nueva posición a la AP axial apical, con información y fotografías.




The WHO Manual of Diagnostic Imaging


Book Description

This manual is part of a WHO series on diagnostic imaging and focuses on practical assistance and guidelines for exposures, projections and positioning of a patient in common radiographic examinations. It offers basic generic information, which can easily be modified according to local needs, and focuses on the needs of small and medium-sized hospitals.




Radiographic Technique


Book Description




Medical X-Ray Techniques in Diagnostic Radiology


Book Description

by Professor J. H. Middlemiss, Department of Radiodiagnosis, The Medical School, University of Bristol This book, for so long and so deservedly, has been a favourite and reliable guide for any person undergoing training in diagnostic radiology whether that person be doctor or technician. This new, largely re-written edition is even more comprehen sive. And yet throughout the book simplicity of presentation is maintained. Professor G. J. van der Plaats has been well known to radiologists in the English speaking world for more than three decades. He has been, and still is, respected by them for his vision, his thoroughness, determination and meticulous attention to detail and for his unremitting enthusiasm. The standard of radiography in the Netherlands throughout this period has been recognised as being of the highest quality, and this has, in no small measure, been due to the pattern set by Professor van der Plaats and his colleagues.




Practical Radiographic Imaging


Book Description

This eighth edition is a major revision and update of Fuch 's Radiographic Exposure and Quality Control including a title change. The book is a most expansive and comprehensive text on radiographic exposure and imaging, encompassing the vast and intricate changes that have taken place in the field. As with previous editions, the book is intended to complement radiographic physics texts rather than duplicate them, and all chapters on conventional radiography have been fully revised to reflect state-of-the-art imaging technology. Part I, Producing the Radiographic Image, presents chapters on x-rays and radiographic variables, recording the permanent image, qualities of the image, and interactions of x-rays within the patient. Part II, Visibility Factors, includes chapters on milliampere-seconds, kilovoltage-peak, machine phase and rectification, beamfiltration, field size limitation, patient status and contrast agents, pathology and casts, scattered radiation and image fog, grids, intensifying screens, and image receptor systems. Part III, Geometrical factors, discusses focal spot size, the anode bevel, source-image receptor distance, object-image receptor distance, distance ratios, beam-part-film-alignment, geometric functions of positioning, and motion. Part IV, Comprehensive Technique, presents chapters on analyzing the radiographic image, simplifying and standardizing technique, technique by proportional anatomy, technique charts, exposure controls, patient dose, quality control, and solving multiple technique problems. Part V, Special Imaging Methods, includes a concise overview of computers, the nature of digital images and the fundamental processes common to all digital imaging systems. Specific applications follow, including digital conversion of film images, DR, DF, CR, and image reconstruction in CT and MRI. The methods of Three-Dimensional Imaging are then introduced with beautiful illustration. The application of lasers in digitizing images and printing hard copies is reviewed, ending with a balanced discussion of PACS and digital teleradiology. CR and DR provides thorough coverage of the image matrix, pixel size, and fields of view, gray scale enhancement and spatial resolution, followed by an excellent discussion of CRT image qualities including horizontal and vertical resolution, contrast, dynamic range, and signal-to-noise ratio. Exposure and reading of the photostimulable phosphor plate is nicely illustrated. Clear presentations on windowing concepts, smoothing, edge enhancement, equalization, the digital workstation and display station are given. Part VI, Processing the Radiograph, completes the text with chapters on digital processing applications, practical applications for CR, automatic processors, film handling and duplication procedures, and sensitometry and darkroom quality control. Each chapter concludes with an examination that will help the student review materials and put them into perspective. Multiple choice, fill-in-the-blank, and identification/explanation questions are all included. This book is by far the best available for schools that are focused on the practical application of radiographic technique.




Dental Radiography - E-Book


Book Description

Providing essential coverage of dental radiography principles and complete technical instruction, Dental Radiography: Principles and Techniques, 4th Edition, is your key to the safe, effective use of radiation in the dental office. The first ever full-color dental radiography resource, this combination of a textbook and a training manual guides you step-by-step through common procedures, with accompanying illustrations, case studies, and interactive exercises to help you apply what you've learned to practice. A concise, straightforward writing style makes complex concepts more accessible and helps you easily identify the most important information. Step-by-step procedures combine clear instructions with anatomical drawings, positioning photos, and corresponding radiographs to help you confidently and accurately perform specific techniques, thus minimizing radiation exposure to the patient. Helpful Hints detail common problems you may encounter in practice and provide a checklist to guide you through the do's and don'ts of imaging procedures. Quiz Questions at the end of each chapter assess your understanding of important content. Key terms, learning objectives, and chapter summaries highlight essential information to help you study more efficiently. Interactive exercises, terminology games, and case studies modeled on the National Board Dental Hygiene Examination (NBDHE) on Evolve reinforce your understanding and help you prepare for examinations. New chapter on cone beam computed tomography (CBCT) familiarizes you with emerging practices in dental radiography. Updated chapter discussions and new radiographs keep you up to date on the latest information in digital imaging. UNIQUE! Full-color design and new illustrations and photographs clarify difficult concepts and help you master proper positioning techniques. UNIQUE! A comprehensive appendix provides quick, easy access to all mathematical formulas used in dental radiography.