NCRP Report No. 116 is the latest in the long series of reports on basic radiation protection criteria that began in 1934. It supersedes the predecessor in the series, NCRP Report No. 91, which was published in 1987. The current Report takes advantage of new information, evaluations and thinking that have developed since 1987, particularly the risk estimate formulations set out in NCRP Report No. 115. While the recommendations set out in this Report do not constitute a radical revision of the basic criteria, they do represent a refinement of the system enunciated in Report No. 91. Important changes include the utilization of revised tissue/organ weighting factors and the introduction of radiation weighting factors. Also noteworthy is the introduction of an allowable reference level of intake. Noteworthy too is the recommendation of an age-based lifetime limit for control of occupational exposures and a major simplification of limits aimed at controlling the exposure of the embryo and fetus. This Report, after outlining the goals and philosophy of radiation protection and the basis for exposure limits, goes on to review, in some detail, absorbed dose, equivalent dose, radiation weighting factors, and effective dose. Committed equivalent dose and committed effective dose are also introduced. Risk estimates for radiation exposure are presented and then the dose limits are enunciated. The Report also covers exposure in excess of the limits, limits for unusual occupational situations, guidance for emergency occupational exposure, and remedial action levels for naturally occurring radiation.
Neurointerventional radiology is evolving into a rarified and complex field, with more people today training to become neurointerventionalists than ever before. With these developments comes a need for a unified handbook of techniques and essential literature. In Handbook of Cerebrovascular Disease and Neurointerventional Technique, Mark Harrigan and John Deveikis present the first practical guide to endovascular methods and provide a viable reference work for neurovascular anatomy and cerebrovascular disease from a neurointerventionalist’s perspective. This new gold-standard reference covers the fundamental techniques and core philosophies of Neurointerventional radiology, while creating a manual that offers structure and standardization to the field. Authoritative and concise, Handbook of Cerebrovascular Disease and Neurointerventional Technique is the must-have work for today’s neurosurgeons, neuroradiologists, and interventional radiologists.
The updated Sixth Edition of this popular text will remain the first choice for those who need current, clinically relevant information on how radiation affects the human body. Written by practicing, active radiobiologists, the book brings together basic laboratory research and practical, clinical applications. The easy-to-read text and informative illustrations ensure comprehension, and summaries at the end of each chapter facilitate quick review. The first section covers topics applicable to diagnostic radiology, nuclear medicine, and radiation oncology; the second section offers material specifically for radiation oncologists. This edition includes new material about doses and risks in interventional radiology and cardiology.
Report No. 147 (2004) presents recommendations and technical information related to the design and installation of structural shielding for facilities that use x rays for medical imaging. The purpose of structural shielding is to limit radiation exposure to employees and members of the public. The information supersedes the recommendations that address such facilities in NCRP Report No. 49, Structural Shielding Design and Evaluation for Medical Use of X Rays and Gamma Rays of Energies Up to 10 MeV, which was issued in September 1976. NCRP Report No. 147 includes a discussion of the various factors to be considered in the selection of appropriate shielding materials and in the calculation of barrier thicknesses. The Report presents the fundamentals of radiation shielding, discusses shielding design goals for controlled and uncontrolled areas in or near x-ray imaging facilities and defines the relationship of these goals to the NCRP effective dose limits for radiation workers and members of the public. The Report includes a detailed discussion of the recommended shielding design methodology for x-ray imaging facilities and provides an extensive collection of shielding data and sample shielding calculations for various types of x-ray imaging facilities. The Report is mainly intended for those individuals who specialize in radiation protection. However, it will also be of interest to architects, hospital administrators and related professionals concerned with the planning of new facilities that use x rays for medical imaging.
Compact, hand-carried ultrasound devices are revolutionizing how healthcare providers practice medicine in nearly every specialty. The 2nd Edition of this BMA-award-winning text features all-new chapters, a greatly expanded video library, and new review questions to keep you fully up to date with the latest technology and its applications. - Helps you interpret findings with a peer-reviewed, online video library with more than 1,000 ultrasound videos of normal and pathologic findings. These videos are complemented by anatomical illustrations and text descriptions to maximize learning. - Offers new online resources, including over 60 clinical cases and review questions in every chapter. - Features fully updated content throughout, plus all-new chapters on hemodynamics, transesophageal echocardiography, transcranial Doppler ultrasound, pediatrics, neonatology, and 2nd/3rd trimester pregnancy. - Shares the knowledge and expertise of expert contributors who are internationally recognized faculty from more than 60 institutions. - Recipient of British Medical Association's President's Choice Award and Highly Commended in Internal Medicine at the BMA Medical Book Awards 2015 (first edition).
Peripheral vascular disease is a common, disabling malady, and patients seeking treatment may turn to their cardiologist for advice and treatment. Conventional treatment has always been medical management and, inevitably, surgical bypass, even amputation. Stents have had a significantly high impact on endoluminal treatment outcomes by preventing injury to the lumen, reducing the potential for hyperplasia and restenosis, as well as the likelihood of plaque disruption and embolization. This second edition brings together a combination of all the current evidence-based information with personal experience and is presented by a team of distinguished operators. Short Contents