Articles with "dynamic collimator" as a keyword



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Overranging and overbeaming measurement in area detector computed tomography: A method for simultaneous measurement in volume helical acquisition

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Published in 2019 at "Journal of Applied Clinical Medical Physics"

DOI: 10.1002/acm2.12650

Abstract: Abstract Purpose We propose a novel method to assess overbeaming and overranging, as well as the effect of reducing longitudinal exposure range, by using a dynamic zā€collimator in area detector computed tomography. Methods and materials… read more here.

Keywords: area detector; dynamic collimator; computed tomography; collimation ... See more keywords
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Technical note: Improving VMAT delivery efficiency by optimizing the dynamic collimator trajectory.

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Published in 2019 at "Medical physics"

DOI: 10.1002/mp.13671

Abstract: PURPOSE To provide a method for optimizing the multi-leaf collimator angle trajectory in volumetric modulated arc therapy (VMAT) in order to make VMAT delivery and planning more efficient. METHODS Static uence maps are optimized at… read more here.

Keywords: dynamic collimator; vmat delivery; collimator; delivery ... See more keywords
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Efficacy of a dynamic collimator for overranging dose reduction in a second- and third-generation dual source CT scanner

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Published in 2017 at "European Radiology"

DOI: 10.1007/s00330-017-4745-8

Abstract: AbstractObjectivesThe purpose of this study was to assess the efficacy of the renewed dynamic collimator in a third-generation dual source CT (DSCT) scanner and to determine the improvements over the second-generation scanner.MethodsCollimator efficacy is defined… read more here.

Keywords: dynamic collimator; collimator; scanner; efficacy ... See more keywords