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Barrett, H.H.* ; Myers, K.J.* ; Hoeschen, C. ; Kupinski, M.A.* ; Little, M.P.*

Task-based measures of image quality and their relation to radiation dose and patient risk.

Phys. Med. Biol. 60, R1-R75 (2015)
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The theory of task-based assessment of image quality is reviewed in the context of imaging with ionizing radiation, and objective figures of merit (FOMs) for image quality are summarized. The variation of the FOMs with the task, the observer and especially with the mean number of photons recorded in the image is discussed. Then various standard methods for specifying radiation dose are reviewed and related to the mean number of photons in the image and hence to image quality. Current knowledge of the relation between local radiation dose and the risk of various adverse effects is summarized, and some graphical depictions of the tradeoffs between image quality and risk are introduced. Then various dose-reduction strategies are discussed in terms of their effect on task-based measures of image quality.
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Publication type Article: Journal article
Document type Scientific Article
Keywords radiation dose; image quality; patient risk; ionizing radiation; tomography; Atomic-bomb Survivors; Abdominal Computed-tomography; Digital Breast Tomosynthesis; Cone-beam Ct; Iterative Reconstruction Techniques; Observer Detection Performance; Positron-emission-tomography; Hotelling Trace Criterion; Monte-carlo Calculation; Visual Signal-detection
Language english
Publication Year 2015
HGF-reported in Year 2015
ISSN (print) / ISBN 0031-9155
e-ISSN 1361-6560
Journal Physics in Medicine and Biology
Quellenangaben Volume: 60, Issue: 2, Pages: R1-R75 Article Number: , Supplement: ,
Publisher Institute of Physics Publishing (IOP)
Publishing Place Bristol
Reviewing status Peer reviewed
Institute(s) Research Unit Medical Radiation Physics and Diagnostics (AMSD)
POF-Topic(s) 30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
Research field(s) Radiation Sciences
PSP Element(s) G-503600-002
DOI 10.1088/0031-9155/60/2/R1
WOS ID WOS:000347675100002
Scopus ID 84920761559
Erfassungsdatum 2015-01-12
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