Dose Optimization In Digital Radiography And Computed Tomography
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Dose Optimization In Digital Radiography And Computed Tomography
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Author : Euclid Seeram
language : en
Publisher: Springer Nature
Release Date : 2023-02-21
Dose Optimization In Digital Radiography And Computed Tomography written by Euclid Seeram and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-02-21 with Science categories.
This book addresses radiation protection of patients having digital radiography and computed tomography (CT) examinations. The literature on radiation doses to patients from these two modalities have reported that the doses to patients are high. As a result, the radiology community has focused on methods and procedures to keep these doses as low as reasonably achievable (ALARA) without compromising the diagnostic image quality. This book outlines the motivation for dose optimization in radiology, identifies and describes the ICRP principle of optimization, outlines the factors affecting the dose in digital radiography and in CT, and identifies and describes strategies used in digital radiography and in CT for dose optimization. This book is intended for all those working in digital radiography and CT environments including radiological technologists, and radiographers, radiologists, biomedical engineering technologists, and student medical physicists. It is best used as a supplement to radiologic science textbooks, and in particular, radiation protection textbooks. Furthermore, this book lays the foundations for students and practitioners engaged in research on dose reduction and dose optimization in radiology. · Provides practical and useful methods for optimization of doses from digital radiography and CT · Describes the International Commission on Radiological Protection (ICRP) principle of optimization · Outlines the factors affecting the dose in digital radiography and in computed tomography
Digital Radiography
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Author : Euclid Seeram
language : en
Publisher: Springer
Release Date : 2019-01-23
Digital Radiography written by Euclid Seeram and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-01-23 with Medical categories.
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.
Digital Imaging Systems For Plain Radiography
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Author : Luis Lanca
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-10-25
Digital Imaging Systems For Plain Radiography written by Luis Lanca and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-10-25 with Medical categories.
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.
Optimizing Of Dose And Imaging Quality For Computer And Digital Radhiography Iium Press
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Author : Zubir Ahmad Shazli
language : en
Publisher: IIUM PRESS
Release Date : 2021-04-01
Optimizing Of Dose And Imaging Quality For Computer And Digital Radhiography Iium Press written by Zubir Ahmad Shazli and has been published by IIUM PRESS this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-04-01 with Medical categories.
Optimization of dose in radiographic examinations is essential since the utilization of x-radiation is related to increased cancer risk. The study’s objective was to guide radiographers in ensuring best practices for common radiographic examinations of acceptable image quality in digital radiography while minimizing radiation doses that could result in harmful effects. The study comprised of three phases. The first phase involved 90 respondents between 20 to 60 years of age and weighing between 60-80 kilograms for the following examinations: anterior-posterior (AP) abdomen, AP or lateral lumbar sacral spine and posterior-anterior (PA) chest examinations. During this phase, the radiographic examination’s technical parameters for 30 radiographs for each examination were at the radiographers’ discretion. Kerma X_plus, DAP (dose area product) meter was utilized to evaluate the entrance surface dose (ESD), while CALDose_X 5.0 Monte Carlo was used to estimate the effective dose. The experimental study utilized an anthropomorphic phantom (PBU-50) and Leeds test object to compare the image quality. The best parameters were adapted to the patient’s AP thickness for the optimization study from the different technical parameters used in the experimental phase.
Mdct Physics The Basics
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Author : Mahadevappa Mahesh
language : en
Publisher: Lippincott Williams & Wilkins
Release Date : 2012-03-28
Mdct Physics The Basics written by Mahadevappa Mahesh and has been published by Lippincott Williams & Wilkins this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-03-28 with Medical categories.
Written by the chief physicist at Johns Hopkins University Hospital, this easy-to-read short textbook explains the physics behind multi-detector CT technology, particularly newer, more complex technology. The focus is on principles of physics, effects of scan parameters on image quality, and optimum radiation dosage. The book includes numerous key points summaries and questions to assist in exam preparation.
Computed Tomography E Book
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Author : Euclid Seeram
language : en
Publisher: Elsevier Health Sciences
Release Date : 2008-11-10
Computed Tomography E Book written by Euclid Seeram and has been published by Elsevier Health Sciences this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-11-10 with Medical categories.
Radiologic technologists play an important role in the care and management of patients undergoing advanced imaging procedures. This new edition provides the up-to-date information and thorough coverage you need to understand the physical principles of computed tomography (CT) and safely produce high-quality images. You’ll gain valuable knowledge about the practice of CT scanning, effective communication with other medical personnel, and sectional anatomic images as they relate to CT. Comprehensively covers CT at just the right depth for technologists – going beyond superficial treatment to accommodate all the major advances in CT. One complete CT resource covers what you need to know! Brings you up to date with the latest in multi-slice spiral CT and its applications – the only text to include full coverage of this important topic. Features a chapter devoted to quality control testing of CT scanners (both spiral CT and conventional scan-and-stop), helping you achieve and maintain high quality control standards. Provides the latest information on: advances in volume CT scanning; CT fluoroscopy; multi-slice spiral/helical CT; and multi-slice applications such as 3-D imaging, CT angiography, and virtual reality imaging (endoscopy) – all with excellent coverage of state-of-the-art principles, instrumentation, clinical applications and quality control. Two new chapters cover recent developments and important principles of multislice CT and PET/CT, giving you in-depth coverage of these quickly emerging aspects of CT. Nearly 100 new line drawings and images illustrate difficult concepts, helping you learn and retain information. All-new material updates you on today’s CT scanners, CT and PACS, image quality and quality control for multislice CT scanners, and clinical applications.
Medical Imaging
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Author : Anthony B. Wolbarst
language : en
Publisher: John Wiley & Sons
Release Date : 2013-04-02
Medical Imaging written by Anthony B. Wolbarst and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-02 with Medical categories.
"An excellent primer on medical imaging for all members of the medical profession . . . including non-radiological specialists. It is technically solid and filled with diagrams and clinical images illustrating important points, but it is also easily readable . . . So many outstanding chapters . . . The book uses little mathematics beyond simple algebra [and] presents complex ideas in very understandable terms." —Melvin E. Clouse, MD, Vice Chairman Emeritus, Department of Radiology, Beth Israel Deaconess Medical Center and Deaconess Professor of Radiology, Harvard Medical School A well-known medical physicist and author, an interventional radiologist, and an emergency room physician with no special training in radiology have collaborated to write, in the language familiar to physicians, an introduction to the technology and clinical applications of medical imaging. It is intentionally brief and not overly detailed, intended to help clinicians with very little free time rapidly gain enough command of the critically important imaging tools of their trade to be able to discuss them confidently with medical and technical colleagues; to explain the general ideas accurately to students, nurses, and technologists; and to describe them effectively to concerned patients and loved ones. Chapter coverage includes: Introduction: Dr. Doe's Headaches Sketches of the Standard Imaging Modalities Image Quality and Dose Creating Subject Contrast in the Primary X-Ray Image Twentieth-Century (Analog) Radiography and Fluoroscopy Radiation Dose and Radiogenic Cancer Risk Twenty-First-Century (Digital) Imaging Digital Planar Imaging Computed Tomography Nuclear Medicine (Including SPECT and PET) Diagnostic Ultrasound (Including Doppler) MRI in One Dimension and with No Relaxation Mapping T1 and T2 Proton Spin Relaxation in 3D Evolving and Experimental Modalities
Rad Tech S Guide To Radiation Protection
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Author : Euclid Seeram
language : en
Publisher: John Wiley & Sons
Release Date : 2019-09-30
Rad Tech S Guide To Radiation Protection written by Euclid Seeram and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-09-30 with Medical categories.
Radiation protection is a core element of radiologic technology programmes and daily practice alike. Rad Tech's Guide to Radiation Protection is a comprehensive yet compact guide designed to illuminate the extensive field of radiation protection for technologists, trainees, and radiology students. Organised into ten digestible chapters, the second edition of this popular book provides new discussions of dose factors in computed tomography, the debate concerning the use of the LNT model, Diagnostic Reference Levels (DRLs), dose optimization, and more. Written by a recognised expert in medical radiation sciences, this valuable guide: Helps students and technologists acquire the skills required to protect patients, personnel, and members of the public in the radiology department Reflects the most current standards for radiation protection, with references to relevant organisations and resources Covers basic radiobiology, sources of radiation exposure, dose management regulations and optimization, and more Presents essential information in a bulleted, easy-to-reference format Rad Tech's Guide to Radiation Protection is a must-have resource for student radiographers and radiology technologists, particularly those preparing for the American Registry of Radiation Technologist (ARRT) exams.
A Comprehensive Guide To Radiographic Sciences And Technology
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Author : Euclid Seeram
language : en
Publisher: John Wiley & Sons
Release Date : 2021-04-23
A Comprehensive Guide To Radiographic Sciences And Technology written by Euclid Seeram and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-04-23 with Medical categories.
A Comprehensive Guide to Radiographic Sciences and Technology is a concise review of radiographic physics and imaging, perfect for students preparing for certification examinations such as the American Registry for Radiologic Technologists (ARRT). Aligned with the core radiographic science components of the current American Society of Radiologic Technologists (ASRT) curriculum, this up-to-date resource covers topics including radiation production and characteristics, imaging equipment, digital image acquisition and display, radiation protection, basic principles of computed tomography, and quality control. The guide begins with an overview of the radiographic sciences and technology, followed by detailed descriptions of the major components of digital radiographic imaging systems. Subsequent sections discuss the essential aspects of diagnostic radiography and computed tomography, including basic physics, imaging modalities, digital image processing, quality control, imaging informatics, and basic concepts of radiobiology and radiation protection. Throughout the book, concise chapters summarise the critical knowledge required for effective and efficient imaging of the patient while emphasising the important, yet commonly misunderstood, relationship between radiation dose and image quality. Written by an internationally recognised expert in the field, this invaluable reference and guide: Provides easy access to basic physics, techniques, equipment, and safety guidelines for radiographic imaging Reflects the educational requirements of the American Society of Radiologic Technologists (ASRT), the Canadian Association of Medical Radiation Technologists (CAMRT), the College of Radiographers (CoR), and other radiography societies and associations worldwide Offers a range of pedagogical tools such as chapter outlines, key term definitions, bulleted lists, practical examples, and links to current references and additional resources Includes charts, diagrams, photographs, and x-ray images A Comprehensive Guide to Radiographic Sciences and Technology is required reading for students in programs using ionizing radiation, those preparing for the ARRT and other global radiography certification exams, and practising technologists wanting to refresh their knowledge.
Digital Radiography
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Author : Euclid Seeram
language : en
Publisher: Springer Nature
Release Date : 2020-09-19
Digital Radiography written by Euclid Seeram and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-09-19 with Medical categories.
This book serves as a supplement to the book ‘Digital Radiography: Physical Principles and Quality Control, 2nd Edition (ISBN 978-981-13-3243-2)’ published by Springer Nature in 2019. This book includes review questions of multiple choices, true/false and short answer formats based on the chapters of the already published book along with their answers. It includes questions that mimic the nature of the questions in certification examinations of professional radiologic technologist organizations, such as the American Association of Radiological Technologists (ASRT) and the Canadian Association of Medical Radiation Technologists (CAMRT) and other certification organizations in the United Kingdom and Australia. The book includes 10-15 review questions on each of the essential topics covering the scope of digital radiography (DR), such as definition of DR, limitations of film-screen radiography, digital image processing concepts, physics and technology of computed radiography (CR), flat-panel digital radiography (FPDR), image quality descriptors including artifacts for CR and FPDR, the standardized exposure indicator, the technical aspects of digital fluoroscopy, digital mammography, digital tomosynthesis, picture archiving and communication systems (PACS), imaging informatics, quality control for DR, and radiation dose optimization in DR. The book is relevant for diagnostic radiography students, diagnostic radiology residents (MDs), radiology practitioners and biomedical engineering technologists all over the world.