Source:http://linkedlifedata.com/resource/pubmed/id/20175488
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
2010-2-23
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pubmed:abstractText |
Megavoltage computed tomography (MVCT) and megavoltage cone beam computed tomography (MVCBCT) can be used for visualizing anatomical structures prior to radiation therapy treatments to assist in patient setup and target localization. These systems are less susceptible to metal artifacts and provide better CT number linearity than conventional CT scanners. However, their contrast is limited by the properties of the megavoltage photons and the low detective quantum efficiency (DQE) of flat panel detector systems currently available. By using higher DQE, thick, segmented cadmium tungstate detectors, the authors can improve the low contrast detectability of a MVCT system. This in turn would permit greater soft tissue visualization for a given radiation dose, allowing MVCT to be used in more clinical situations.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0094-2405
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
37
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
249-57
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pubmed:meshHeading |
pubmed-meshheading:20175488-Cadmium Compounds,
pubmed-meshheading:20175488-Computer-Aided Design,
pubmed-meshheading:20175488-Equipment Design,
pubmed-meshheading:20175488-Equipment Failure Analysis,
pubmed-meshheading:20175488-Pilot Projects,
pubmed-meshheading:20175488-Radiographic Image Enhancement,
pubmed-meshheading:20175488-Reproducibility of Results,
pubmed-meshheading:20175488-Semiconductors,
pubmed-meshheading:20175488-Sensitivity and Specificity,
pubmed-meshheading:20175488-Tomography, X-Ray Computed,
pubmed-meshheading:20175488-Transducers,
pubmed-meshheading:20175488-Tungsten Compounds
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pubmed:year |
2010
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pubmed:articleTitle |
Performance characterization of a MVCT scanner using multislice thick, segmented cadmium tungstate-photodiode detectors.
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pubmed:affiliation |
Department of Physics, University of Alberta, Edmonton, Alberta T6E 2E1, Canada. pkirvan@ualberta.ca
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't,
Evaluation Studies
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