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Author: John Damilakis
Publisher: Iop Expanding Physics
ISBN: 9780750313186
Category : Science
Languages : en
Pages : 0
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Book Description
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: John Damilakis
Publisher: Iop Expanding Physics
ISBN: 9780750313186
Category : Science
Languages : en
Pages : 0
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Book Description
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: Denis Tack
Publisher: Springer Science & Business Media
ISBN: 3642245358
Category : Medical
Languages : en
Pages : 642
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Book Description
Computed tomography (CT) is a powerful technique providing precise and confident diagnoses. The burgeoning use of CT has resulted in an exponential increase in collective radiation dose to the population. Despite investigations supporting the use of lower radiation doses, surveys highlight the lack of proper understanding of CT parameters that affect radiation dose. Dynamic advances in CT technology also make it important to explain the latest dose-saving strategies in an easy-to-comprehend manner. This book aims to review all aspects of the radiation dose from CT and to provide simple rules and tricks for radiologists and radiographers that will assist in the appropriate use of CT technique. The second edition includes a number of new chapters on the most up-to-date strategies and technologies for radiation dose reduction while updating the outstanding contents of the first edition. Vendor perspectives are included, and an online image gallery will also be available to readers.
Author:
Publisher: National Council on Radiation
ISBN: 9780982384367
Category : Medical
Languages : en
Pages : 325
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Book Description
This Report is focused on the use of fluoroscopic systems as a tool for guiding diagnostic and therapeutic procedures because higher radiation doses (compared to conventional radiography and fluoroscopy) are received regularly from some types of FGI procedures and occasionally from many other types of FGI procedures. Other medical applications of fluoroscopy (e.g., examination of the gastrointestinal system, guiding open surgical procedures) are outside the scope of this Report. Computed- tomography-guided interventional (CTGI) procedures are not discussed in detail due to continuing changes in the technology driven by the evolution of multi-slice computed tomography (CT) detectors. However, the principles presented in this Report are generally applicable to these domains. Most of the recommendations contained in this Report should be applied in all settings where fluoroscopic guidance is used. Within the context of radiation dose management, the goal of this Report is to supply information that helps optimize patient outcomes without compromising worker safety. However, radiation is not the only risk to which patients and workers are exposed. In many cases, radiation is a minor component of overall risk. In these situations, too great a focus on radiation safety (e.g., the use of unnecessarily thick lead aprons) may reduce the overall safety of patients or workers. Some beneficial, clinically-justified FGI procedures, even when optimized for radiation protection, deliver substantial doses of radiation to patients. This puts the patient at risk for radiogenic stochastic effects and occasionally induces radiogenic deterministic effects. However, a complete risk analysis usually identifies many other procedural hazards and will often conclude that radiation is one of the lesser hazards from FGI procedures. While the decision to conduct an FGI procedure assumes that the use of ionizing radiation is warranted by the disease state for which
Author:
Publisher: National Council of Teachers of English
ISBN: 9781441686947
Category : Fluoroscopy
Languages : en
Pages : 339
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Book Description
This Report is focused on the use of fluoroscopic systems as a tool for guiding diagnostic and therapeutic procedures because higher radiation doses (compared to conventional radiography and fluoroscopy) are received regularly from some types of FGI procedures and occasionally from many other types of FGI procedures. Other medical applications of fluoroscopy (e.g., examination of the gastrointestinal system, guiding open surgical procedures) are outside the scope of this Report. Computed- tomography-guided interventional (CTGI) procedures are not discussed in detail due to continuing changes in the technology driven by the evolution of multi-slice computed tomography (CT) detectors. However, the principles presented in this Report are generally applicable to these domains. Most of the recommendations contained in this Report should be applied in all settings where fluoroscopic guidance is used. Within the context of radiation dose management, the goal of this Report is to supply information that helps optimize patient outcomes without compromising worker safety. However, radiation is not the only risk to which patients and workers are exposed. In many cases, radiation is a minor component of overall risk. In these situations, too great a focus on radiation safety (e.g., the use of unnecessarily thick lead aprons) may reduce the overall safety of patients or workers. Some beneficial, clinically-justified FGI procedures, even when optimized for radiation protection, deliver substantial doses of radiation to patients. This puts the patient at risk for radiogenic stochastic effects and occasionally induces radiogenic deterministic effects. However, a complete risk analysis usually identifies many other procedural hazards and will often conclude that radiation is one of the lesser hazards from FGI procedures. While the decision to conduct an FGI procedure assumes that the use of ionizing radiation is warranted by the disease state for which
Author: ICRP,
Publisher: SAGE Publications Limited
ISBN: 9781526434982
Category : Science
Languages : en
Pages : 144
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Book Description
Author: Institute of Medicine
Publisher: National Academies Press
ISBN: 0309058953
Category : Science
Languages : en
Pages : 78
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Book Description
Author: British Nuclear Energy Society
Publisher: Thomas Telford
ISBN: 0727720872
Category : Nuclear engineering
Languages : en
Pages : 264
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Book Description
The revised recommendations of the ICRP in its Publication 60 have led to significant changes in attitudes and to a new culture of radiological protection. Lower dose limits and the requirement to ensure that exposure is as low as reasonably achievable means that detailed attention must be given to radiological aspects from design, through commissioning, operation and maintenance, to eventual decommissioning. In this book the authors discuss the complex solutions to the problems of dose reduction, involving a scientific approach to the understanding of the sources of exposure, good engineering in the design and operation of facilities and efficient management of radiation protection. The context is a nuclear industry under pressure to reduce costs and increase efficiency. It is ever more important therefore to ensure that radiological factors do not unduly constrain the operation of plant.
Author: Colin John Martin
Publisher:
ISBN: 9780750321983
Category : MEDICAL
Languages : en
Pages :
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Book Description
Arrangements for personal monitoring have evolved as dose limits and practices using radiation have developed. Therefore, new approaches involving more personal dosimetry are required, and methods are needed that can be used to predict probable dose levels so that risk assessments can be prepared to determine the level of dose monitoring for individual staff members. The authors set out recommendations designed to help radiation protection practitioners and healthcare workers assess exposure levels for personnel and determine monitoring requirements based on established rules. This book is essential reading for medical physicists in radiation protection, diagnostic radiology and nuclear medicine, as well as radiographers and technologists due to changes in global dosimetry requirements. Additionally, it presents guidelines for medical physicists and others using radiation. Part of IPEM-IOP Series in Physics and Engineering in Medicine and Biology.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309255716
Category : Medical
Languages : en
Pages : 424
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Book Description
In the late 1980s, the National Cancer Institute initiated an investigation of cancer risks in populations near 52 commercial nuclear power plants and 10 Department of Energy nuclear facilities (including research and nuclear weapons production facilities and one reprocessing plant) in the United States. The results of the NCI investigation were used a primary resource for communicating with the public about the cancer risks near the nuclear facilities. However, this study is now over 20 years old. The U.S. Nuclear Regulatory Commission requested that the National Academy of Sciences provide an updated assessment of cancer risks in populations near USNRC-licensed nuclear facilities that utilize or process uranium for the production of electricity. Analysis of Cancer Risks in Populations near Nuclear Facilities: Phase 1 focuses on identifying scientifically sound approaches for carrying out an assessment of cancer risks associated with living near a nuclear facility, judgments about the strengths and weaknesses of various statistical power, ability to assess potential confounding factors, possible biases, and required effort. The results from this Phase 1 study will be used to inform the design of cancer risk assessment, which will be carried out in Phase 2. This report is beneficial for the general public, communities near nuclear facilities, stakeholders, healthcare providers, policy makers, state and local officials, community leaders, and the media.
Author: British Nuclear Energy Society
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
