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

被引:101
作者
Barrett, Harrison H. [1 ,2 ]
Myers, Kyle J. [3 ]
Hoeschen, Christoph [4 ,5 ]
Kupinski, Matthew A. [1 ,2 ]
Little, Mark P. [6 ]
机构
[1] Univ Arizona, Coll Opt Sci, Tucson, AZ 85721 USA
[2] Univ Arizona, Dept Med Imaging, Ctr Gamma Ray Imaging, Tucson, AZ 85724 USA
[3] US FDA, Div Imaging Diagnost & Software Reliabil, Ctr Devices & Radiol Hlth, Off Sci & Engn Labs, Silver Spring, MD 20993 USA
[4] Otto Von Guericke Univ, Dept Elect Engn & Informat Technol, D-39106 Magdeburg, Germany
[5] Helmholtz Zentrum Munchen, Res Unit Med Radiat Phys & Diagnost, D-85764 Oberschleissheim, Germany
[6] NCI, Div Canc Epidemiol & Genet, Radiat Epidemiol Branch, Bethesda, MD 20892 USA
基金
美国国家卫生研究院;
关键词
radiation dose; image quality; patient risk; ionizing radiation; tomography; ATOMIC-BOMB SURVIVORS; ITERATIVE RECONSTRUCTION TECHNIQUES; ABDOMINAL COMPUTED-TOMOGRAPHY; IDEAL-OBSERVER PERFORMANCE; HOTELLING TRACE CRITERION; MONTE-CARLO CALCULATION; FRESNEL ZONE-PLATE; CONE-BEAM CT; OBJECTIVE ASSESSMENT; IONIZING-RADIATION;
D O I
10.1088/0031-9155/60/2/R1
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
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.
引用
收藏
页码:R1 / R75
页数:75
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