Patient Dose Optimization In Fluoroscopically Guided Interventional Procedures
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| Author | : International Atomic Energy Agency |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2010 |
| Genre | : Psychology |
| ISBN | : 9789201005106 |
Reports the results of an IAEA coordinated research project on patient dose optimization in fluoroscopically guided interventional procedures. The summary presents information on the assessment of high skin doses, analyses the factors causing radiation skin injury and makes recommendations on how to reduce the likelihood of such complications.
| Author | : John Damilakis |
| Publisher | : Iop Expanding Physics |
| Total Pages | : 0 |
| Release | : 2019-12-06 |
| Genre | : Science |
| ISBN | : 9780750313186 |
Whenever a diagnostic or interventional X-ray examination of a pregnant patient is considered to be necessary, conceptus dose estimation is an essential step in assessing the radiogenic risks to the unborn child. Accurate estimation of embryo/fetus radiation dose is also needed after accidental exposure of a pregnant patient from an X-ray procedure. The exposure of pregnant patients to medical X-rays is often a complex case and involves emotionally sensitive issues for both prospective parents and physicians. Conceptus dose assessment is not always easy. Medical physicists should be able to assess conceptus doses and risks from diagnostic and interventional procedures and also to place the risk in a perspective from which an informed decision can be made. Pregnant medical professionals working with radiation have many misconceptions about the risks of ionizing radiation on the unborn child. Medical radiation workers of childbearing age should be aware that careful planning and dose optimization of examinations can address their concerns and permit, in the vast majority of cases, safe performance of procedures. Pediatric patients requiring diagnostic and interventional procedures are exposed to diagnostic and interventional X-rays. Pediatric patients are more sensitive to radiation than adults and, for this reason, accurate assessment of doses and risks is needed in these cases. Medical physicists should be able to assess paediatric doses and risks from diagnostic and interventional procedures. Several techniques and tools have been developed for dose optimization of radiographic, fluoroscopic, computed tomography and fluoroscopically-guided interventional pediatric procedures. The scan parameters should be adjusted for patient size and body region. Part of Series in Physics and Engineering in Medicine and Biology.
| Author | : Ehsan Samei |
| Publisher | : John Wiley & Sons |
| Total Pages | : 458 |
| Release | : 2020-06-30 |
| Genre | : Medical |
| ISBN | : 1118753453 |
Clinical Medical Imaging Physics: Current and Emerging Practice is the first text of its kind—a comprehensive reference work covering all imaging modalities in use in clinical medicine today. Destined to become a classic in the field, this book provides state-of-practice descriptions for each imaging modality, followed by special sections on new and emerging applications, technologies, and practices. Authored by luminaries in the field of medical physics, this resource is a sophisticated, one-volume handbook to a fast-advancing field that is becoming ever more central to contemporary clinical medicine. Summarizes the current state of clinical medical imaging physics in one volume, with a focus on emerging technologies and applications Provides comprehensive coverage of all key clinical imaging modalities, taking into account the new realities in healthcare practice Features a strong focus on clinical application of principles and technology, now and in the future Contains authoritative text compiled by world-renowned editors and contributors responsible for guiding the development of the field Practicing radiologists and medical physicists will appreciate Clinical Medical Imaging Physics as a peerless everyday reference work. Additionally, graduate students and residents in medical physics and radiology will find this book essential as they study for their board exams.
| Author | : ICRP, |
| Publisher | : SAGE Publications Limited |
| Total Pages | : 144 |
| Release | : 2017-10-29 |
| Genre | : Science |
| ISBN | : 9781526434982 |
| Author | : Hugh J. Robertson |
| Publisher | : Oxford University Press |
| Total Pages | : 330 |
| Release | : 2012-07-12 |
| Genre | : Computers |
| ISBN | : 019976462X |
Edited and contributed to by leaders of radiology simulation-based training, this book is the first of its kind to thoroughly cover such training and education.
| Author | : ICRP, |
| Publisher | : SAGE Publications Limited |
| Total Pages | : 66 |
| Release | : 2001-07-31 |
| Genre | : Science |
| ISBN | : 9780080439754 |
Interventional radiology (fluoroscopically-guided) techniques are being used by an increasing number of clinicians not adequately trained in radiation safety or radiobiology. Many of these interventionists are not aware of the potential for injury from these procedures or the simple methods for decreasing their incidence. Many patients are not being counselled on the radiation risks, nor followed up when radiation doses from difficult procedures may lead to injury. Some patients are suffering radiation-induced skin injuries and younger patients may face an increased risk of future cancer. Interventionists are having their practice limited or suffering injury, and are exposing their staff to high doses. In some interventional procedures, skin doses to patients approach those experienced in some cancer radiotherapy fractions. Radiation-induced skin injuries are occurring in patients due to the use of inappropriate equipment and, more often, poor operational technique. Injuries to physicians and staff performing interventional procedures have also been observed. Acute radiation doses (to patients) may cause erythema at 2 Gy, cataract at 2 Gy, permanent epilation at 7 Gy, and delayed skin necrosis at 12 Gy. Protracted (occupational) exposures to the eye may cause cataract at 4 Gy if the dose is received in less than 3 months, at 5.5 Gy if received over a period exceeding 3 months.
| Author | : Gianfranco Butera |
| Publisher | : Springer Nature |
| Total Pages | : 1102 |
| Release | : 2021-07-22 |
| Genre | : Medical |
| ISBN | : 3030698564 |
The second edition of this handbook is an up-to-date guide to the application of catheter-based interventions across the entire age range of congenital heart disease patients, from fetal life through to adulthood. It considers the changes and improvements that have occurred during the last few years in terms of new procedures, new tools and devices (in particular in the field of valves), new imaging and pre-procedural strategies, such as 3D-printing, 3D- rotational angiography and fusion imaging. It provides readers with clear instructions on techniques for vascular access, valve dilatation, angioplasty, stent implantation, defect closure, defect creation, pulmonary valve implantation and on the hybrid approach, as well as on various other procedures. As in the first edition, topics are approached using a step-by-step format, ensuring that readers can immediately access the information relevant to their daily practice. Numerous explanatory figures and drawings are included in each chapter in order to further clarify how to plan, perform and evaluate diagnostic and interventional procedures in the field of congenital heart disease. It also highlights important tips and tricks that will assist health operators in achieving optimal outcomes, and includes an appendix with additional general equations and BSA, and oxygen consumption charts. This practical guide will be a valuable resource for surgeons and cardiologists in their daily clinical practice.
| Author | : Committee to Assess Health Risks from Exposure to Low Levels of Ionizing Radiation |
| Publisher | : National Academies Press |
| Total Pages | : 422 |
| Release | : 2006-03-23 |
| Genre | : Science |
| ISBN | : 0309133343 |
This book is the seventh in a series of titles from the National Research Council that addresses the effects of exposure to low dose LET (Linear Energy Transfer) ionizing radiation and human health. Updating information previously presented in the 1990 publication, Health Effects of Exposure to Low Levels of Ionizing Radiation: BEIR V, this book draws upon new data in both epidemiologic and experimental research. Ionizing radiation arises from both natural and man-made sources and at very high doses can produce damaging effects in human tissue that can be evident within days after exposure. However, it is the low-dose exposures that are the focus of this book. So-called “late” effects, such as cancer, are produced many years after the initial exposure. This book is among the first of its kind to include detailed risk estimates for cancer incidence in addition to cancer mortality. BEIR VII offers a full review of the available biological, biophysical, and epidemiological literature since the last BEIR report on the subject and develops the most up-to-date and comprehensive risk estimates for cancer and other health effects from exposure to low-level ionizing radiation.
| Author | : National Council on Radiation Protection and Measurements. Scientific Committee 4-3 on Diagnostic Reference Levels and Achievable Doses, and Reference Levels in Medical Imaging: Recommendations for Applications in the United States |
| Publisher | : National Council of Teachers of English |
| Total Pages | : 133 |
| Release | : 2012 |
| Genre | : Medical |
| ISBN | : 9780983545026 |
Diagnostic reference levels (DRLs) are used in medical imaging to indicate whether the patient radiation dose or amount of administered activity from a specific procedure are unusually high or low for that procedure. DRLs are the first step in the optimization process to manage patient dose commensurate with the medical purpose of the procedure. Achievable dose is an optimization goal, based on survey data, and typically defined as the median value (50th percentile) of the dose distribution of standard techniques and technologies in widespread use. The overarching goal is to obtain image quality consistent with the clinical objective, while avoiding unnecessary radiation. Too low an exposure, however, is also to be avoided if it results in an inadequate image. This Report represents an important continuation of NCRP reports on radiation safety and health protection in medicine and lays the foundation for the development and application of DRLs and achievable doses for diagnostic x-ray examinations. The concept of DRLs is extended to procedures other than diagnostic x-ray examinations (e.g., for interventional radiology) by the use of reference levels (RLs), which represent radiation dose levels that if exceeded prompt an evaluation of the reasons why. This Report discusses the establishment and use of RLs for fluoroscopically-guided interventional (FGI) procedures and describes why a different approach from DRLs is required to account for the greater complexity of interventional radiology compared with standard medical imaging procedures. Phantoms are models of the human body used in radiation dosimetry studies to estimate exposures to patients. The use of phantom survey data in the United States is contrasted with the use of patient-based dose data in Europe for establishing DRLs, achievable doses, and RLs. The use of phantom survey data is reviewed for determining DRLs for imaging modalities such as projection radiography, fluoro
| Author | : Thomas H. Newton |
| Publisher | : |
| Total Pages | : 376 |
| Release | : 1983 |
| Genre | : Medical |
| ISBN | : |
