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- W1572185781 endingPage "4813" @default.
- W1572185781 startingPage "4796" @default.
- W1572185781 abstract "In single photon emission computed tomography, the choice of the collimator has a major impact on the sensitivity and resolution of the system. Traditional parallel-hole and fan-beam collimators used in clinical practice, for example, have a relatively poor sensitivity and subcentimeter spatial resolution, while in small-animal imaging, pinhole collimators are used to obtain submillimeter resolution and multiple pinholes are often combined to increase sensitivity. This paper reviews methods for production, sensitivity maximization, and task-based optimization of collimation for both clinical and preclinical imaging applications. New opportunities for improved collimation are now arising primarily because of (i) new collimator-production techniques and (ii) detectors with improved intrinsic spatial resolution that have recently become available. These new technologies are expected to impact the design of collimators in the future. The authors also discuss concepts like septal penetration, high-resolution applications, multiplexing, sampling completeness, and adaptive systems, and the authors conclude with an example of an optimization study for a parallel-hole, fan-beam, cone-beam, and multiple-pinhole collimator for different applications." @default.
- W1572185781 created "2016-06-24" @default.
- W1572185781 creator A5010056524 @default.
- W1572185781 creator A5014411962 @default.
- W1572185781 creator A5047464806 @default.
- W1572185781 creator A5061866349 @default.
- W1572185781 creator A5083835629 @default.
- W1572185781 creator A5091281907 @default.
- W1572185781 date "2015-07-24" @default.
- W1572185781 modified "2023-10-14" @default.
- W1572185781 title "Review of SPECT collimator selection, optimization, and fabrication for clinical and preclinical imaging" @default.
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