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Title: Digital radiography exposure indices: A review

Digital radiography (DR) technologies have the advantage of a wide dynamic range compared to their film-screen predecessors, however, this poses a potential for increased patient exposure if left unchecked. Manufacturers have developed the exposure index (EI) to counter this, which provides radiographers with feedback on the exposure reaching the detector. As these EIs were manufacturer-specific, a wide variety of EIs existed. To offset this, the international standardised EI has been developed by the International Electrotechnical Commission (IEC) and the American Association of Physicists in Medicine (AAPM). The purpose of this article is to explore the current literature relating to EIs, beginning with the historical development of the EI, the development of the standardised EI and an exploration of common themes and studies as evidenced in the research literature. It is anticipated that this review will provide radiographers with a useful guide to understanding EIs, their application in clinical practice, limitations and suggestions for further research.
Authors:
; ;  [1] ;  [2] ;  [1]
  1. Medical Imaging Optimisation and Perception Group (MIOPeG), Discipline of Medical Radiation Sciences, Faculty of Health Science, University of Sydney, Sydney, New South Wales (Australia)
  2. Department of Clinical Medicine, Trinity College, Dublin (Ireland)
Publication Date:
OSTI Identifier:
22402346
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Medical Radiation Sciences (Print); Journal Volume: 61; Journal Issue: 2; Other Information: PMCID: PMC4175837; PMID: 26229645; OAI: oai:pubmedcentral.nih.gov:4175837; Copyright (c) 2014 The Authors. Journal of Medical Radiation Sciences published by Wiley Publishing Asia Pty Ltd on behalf of Australian Institute of Radiography and New Zealand Institute of Medical Radiation Technology.; This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
Australia
Language:
English
Subject:
60 APPLIED LIFE SCIENCES; 62 RADIOLOGY AND NUCLEAR MEDICINE; DRUGS; FEEDBACK; FILMS; INDEXES; INTERNATIONAL ELECTROTECHNICAL COMMISSION; MANUFACTURERS; MEDICINE; PATIENTS; REVIEWS