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"This book is intended to provide medical radiography programs with an economical textbook that focuses on the practical aspects of digital radiography. Its scope is limited to information that will be pertinent to each graduating student as he or she enters into clinical practice. Nearly all textbooks to date claiming the title "digital radiography" have dealt primarily with the managerial aspects of the topic at the expense of any practical information on how digital imaging actually works and its clinical implications for the daily practice of radiography. In this textbook the focus is on digital topics and the facts stated with such brief explanatory material as each topic will allow. The goal of the author is to provide an accurate and adequate description of all the aspects of digital images and digital equipment, and their implications for radiographic technique and clinical application, but to do so in the most student-friendly way possible by providing crisp, clear illustrations along with readable text. Many digital topics are intimidating, and every attempt is made to reduce these topics to a descriptive, non-mathematical level that can be intuitively understood by the average student"--
With chapters from globally recognized academics, General Radiography shows the multifaceted approach to general radiography and how it enhances healthcare delivery. Potentially influential to how healthcare delivery is offered, it begins with the pertinent chapters examining image acquisition and dose optimization in diagnostic radiography. Next, chapters reflect and critically discuss aspects central to patient care, and imaging within trauma, critical care and pediatric situations. The final section of this book then explores the learning, teaching and education in the field of diagnostic radiography, with novel strategies illustrated.
This book is intended to provide medical radiography programs with an economical textbook that focuses on the practical aspects of digital radiography. In this new second edition by esteemed author Quinn B. Carroll and with content developed in close collaboration with the medical physics community and several reviewers, this is the most accurate information on digital imaging available. Terminology has been updated throughout the textbook to conform with the most recent revisions of the ASRT Radiography Curriculum Guide and the ARRT Radiography Content Specifications. Several new illustrations and helpful tables have been developed to clarify digital concepts. A new table, Operator Adjustments to Digital Image Qualities and Their Primary Controls, beautifully summarizes the effects of leveling, windowing, equalization, edge enhancement, smoothing and noise reduction, while related text reduces dozens of different manufacturers' terms to these basic operations in the table. Material on medical digital fluoroscopy and imaging informatics has been updated, with a continued emphasis on practical application and clinically useful information. Extensive support materials, including slides correlated to a student workbook, labs, comprehensive question banks and answer keys, have all been updated and improved.
This is the second edition of a well-received book that enriches the understanding of radiographers and radiologic technologists across the globe, and is designed to meet the needs of courses (units) on radiographic imaging equipment, procedures, production, and exposure. The book also serves as a supplement for courses that address digital imaging techniques, such as radiologic physics, radiographic equipment and quality control. In a broader sense, the purpose of the book is to meet readers’ needs in connection with the change from film-based imaging to film-less or digital imaging; today, all radiographic imaging worldwide is based on digital imaging technologies. The book covers a wide range of topics to address the needs of members of various professional radiologic technology associations, such as the American Society of Radiologic Technologists, the Canadian Association of Medical Radiation Technologists, the College of Radiographers in the UK, and the Australian and New Zealand Societies for Radiographers.
This new edition of the Student Workbook is designed for in-classroom use and organized in a “fill-in-the-blank” format. The wording of each question corresponds with the lecture slide series Digital Radiography in Practice: Instructor PowerPoint Slides, 2nd Ed. and closely matches the progression of concepts in the textbook. The guiding philosophy is to provide immediate or short-term reinforcement of lecture and reading material by focusing on keywords. Thus, the Workbook should be used on a daily basis, not as a self-test or review after whole units have been covered. “In-class use” is the most recommended method for use with the Digital Radiography in Practice Instructor PowerPoint Slides, 2nd Ed. The Workbook and slides are designed to work in tandem with each other to actively engage the student in classroom learning. The instructor may elect to require this type of classroom and award points for completion of each unit. If the Workbook is used as a reinforcement tool for homework, it is strongly recommended that the student answer the corresponding questions after reading each major section of a chapter. If students wait until after completing an entire chapter, they may have trouble recalling the keywords elicited by each question and are more likely to confuse different concepts. Major unit subheadings are included in the Workbook to match the textbook. For the purposes of unit review, self-testing or preparation immediately prior to a test, “Chapter Review Questions” are provided at the end of each chapter in the textbook. Answer keys to these questions may be made available from your instructor. This Workbook is an invaluable teaching instrument that allows the student to concentrate on the lecture by doing minimal writing while still challenging the student to participate in classroom learning. An efficient “note-taking” tool, it is an important reinforcement tool for homework and individual study.
In general, image processing texts are intended for students of engineering and computer science, and there is little written at all on the specific requirements of medical image processing. Students of medical radiation science (Diagnostic radiography, Nuclear medicine, Radiation therapy) usually have minimal mathematical and computer science training and find the available texts incomprehensible. A text that explains the principles of image processing in minimally-mathematical language is needed for these students. Contrary to the claims of some textbook authors, the vast majority of technologists that process images do not need to understand the mathematics involved, but would nevertheless benefit from a thorough understanding of the general process.
This textbook reviews the technological developments associated with the transition of radiology departments to filmless environments. Each chapter addresses the key topics in current literature with regard to the generation, transfer, interpretation and distribution of images to the medical enterprise. As leaders in the field of computerized medical imaging, the editors and contributors will provide insight into emerging technologies for physicians, administrators, and other interested groups. As health care organizations throughout the world begin to generate filmless implementation strategies, this exhaustive review has proven to be a vital aid to leaders in the development of health care.
Advances in digital technology led to the development of digital x-ray detectors that are currently in wide use for projection radiography, including Computed Radiography (CR) and Digital Radiography (DR). Digital Imaging Systems for Plain Radiography addresses the current technological methods available to medical imaging professionals to ensure the optimization of the radiological process concerning image quality and reduction of patient exposure. Based on extensive research by the authors and reference to the current literature, the book addresses how exposure parameters influence the diagnostic quality in digital systems, what the current acceptable radiation doses are for useful diagnostic images, and at what level the dose could be reduced to maintain an accurate diagnosis. The book is a valuable resource for both students learning the field and for imaging professionals to apply to their own practice while performing radiological examinations with digital systems.
Industrial radiography is a well-established non-destructive testing (NDT) method in which the basic principles were established many years ago. However, during 1993-95 the European Standards Organisa tion (CEN) commenced drafting many new standards on NDT including radiographic methods, and when completed these will replace national standards in all the EC member countries. In some cases these standards vary significantly from those in use in the UK at present. These CEN standards are accepted by majority, not unanimous voting, so they will become mandatory even in countries which vote against them. As most are likely to be legal by the time this second edition is published, they are described in the appropriate places in the text. The most important new technical development is the greater use of computers in radiology. In the first edition, computerized tomography was only briefly mentioned at the end of Chapter 11, as it was then largely a medical method with only a few equipments having found a place in industrial use. The method depends on a complex computer program and a large data store. Industrial equipments are now being built, although their spread into industry has been slow. Computer data storage is also being used for radiographic data. Small computers can now store all the data produced by scanning a radiographic film with a small light-spot, and various programs can be applied to these data.
This volume describes concurrent engineering developments that affect or are expected to influence future development of digital diagnostic imaging. It also covers current developments in Picture Archiving and Communications System (PACS) technology, with particular emphasis on integration of emerging imaging technologies into the hospital environment.