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Task-based measures of image quality and their relation to radiation dose and patient risk.
Phys. Med. Biol. 60, R1-R75 (2015)
Verlagsversion
DOI
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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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
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
ISSN (print) / ISBN
0031-9155
e-ISSN
1361-6560
Zeitschrift
Physics in Medicine and Biology
Quellenangaben
Band: 60,
Heft: 2,
Seiten: R1-R75
Verlag
Institute of Physics Publishing (IOP)
Verlagsort
Bristol
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed