Abstract:
:The rapid proliferation of micro-computed tomography (micro-CT) scanners in preclinical small animal studies has created a need for a method on scanner performance evaluation and scan parameter optimisation. The purpose of this study was to investigate the performance of the scanner with a dedicated micro-CT phantom. The phantom was developed with different independent sections that allow for measurement of major scanner characteristics such as uniformity, linearity, contrast response, dosimetry and resolution. The results of a thorough investigation are discussed.
journal_name
Radiat Prot Dosimetryjournal_title
Radiation protection dosimetryauthors
Eloot L,Buls N,Covens P,Willekens I,Lahoutte T,de Mey Jdoi
10.1093/rpd/ncq088subject
Has Abstractpub_date
2010-04-01 00:00:00pages
463-7issue
1-3eissn
0144-8420issn
1742-3406pii
ncq088journal_volume
139pub_type
杂志文章abstract::The use of image quality parameters in digital mammography such as contrast-to-noise ratio (CNR), signal-to-noise ratio (SNR) and detective quantum efficiency (DQE) has been widespread, with the intention of detector evaluation and/or quantitative evaluation of the system performance. These parameters are useful in en...
journal_title:Radiation protection dosimetry
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journal_title:Radiation protection dosimetry
pub_type: 杂志文章,多中心研究
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journal_title:Radiation protection dosimetry
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journal_title:Radiation protection dosimetry
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journal_title:Radiation protection dosimetry
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journal_title:Radiation protection dosimetry
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journal_title:Radiation protection dosimetry
pub_type: 杂志文章
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journal_title:Radiation protection dosimetry
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journal_title:Radiation protection dosimetry
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journal_title:Radiation protection dosimetry
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journal_title:Radiation protection dosimetry
pub_type: 杂志文章
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更新日期:2014-07-01 00:00:00
abstract::The use of geometrical phantoms for computed tomography (CT) dosimetry can incur errors in the calculation of effective dose due to the anatomically incorrect organ shapes and distributions, and unrepresentative body dimensions. A Monte Carlo program that makes use of an anatomically correct voxel phantom has been dev...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
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journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncr252
更新日期:2012-04-01 00:00:00
abstract::High-energy neutrons (>10 MeV) contribute substantially to the dose fraction but result in only a small or negligible response in most conventional moderated-type neutron detectors. Neutron dosemeters used for radiation protection purpose are commonly calibrated with (252)Cf neutron sources and are used in various wor...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/rpd/ncu298
更新日期:2015-04-01 00:00:00
abstract::One source of background signals, which are non-radiation related, is the reader system and it includes dark current, external contaminants and electronic spikes. These factors can induce signals equivalent to several hundredths of mSv. Mostly, the effects are minimised by proper design of the TLD reader, but some eff...
journal_title:Radiation protection dosimetry
pub_type: 杂志文章
doi:10.1093/oxfordjournals.rpd.a006064
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journal_title:Radiation protection dosimetry
pub_type: 杂志文章
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journal_title:Radiation protection dosimetry
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更新日期:2016-09-01 00:00:00
abstract::A Japanese adult male voxel (volume pixel) phantom (hereinafter referred to as the JM phantom) was constructed on the basis of CT images of a healthy Japanese adult male volunteer. Body characteristics of the JM phantom were compared with those of a voxelised MIRD5 type phantom and a Japanese adult male voxel phantom ...
journal_title:Radiation protection dosimetry
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journal_title:Radiation protection dosimetry
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journal_title:Radiation protection dosimetry
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journal_title:Radiation protection dosimetry
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abstract::For more accurate assessments of the occupational exposure to radon for miners, the individual monitoring was conducted by using an improved passive integrating (222)Rn monitor. A total of 120 miners in 3 different kinds of mines were monitored throughout a year. The results showed that the individual exposure to rado...
journal_title:Radiation protection dosimetry
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abstract::We evaluated the performances of angiographic units equipped with a flat-panel (FP) detector and image intensifier (II) charge-coupled device (CCD) in the Interventional Cardiology (IC) Department. Entrance dose rate and dose per image, along with the dose at the II level were measured using 2 mm copper sheets to simu...
journal_title:Radiation protection dosimetry
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journal_title:Radiation protection dosimetry
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journal_title:Radiation protection dosimetry
pub_type: 杂志文章
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更新日期:2008-01-01 00:00:00
abstract::Digital breast tomosynthesis is a new three-dimensional (3D) breast-imaging modality that produces images of cross-sectional planes parallel to the detector plane from a limited number of X-ray projections over a limited angular range. Several technical and clinical parameters have not yet been completely optimised. S...
journal_title:Radiation protection dosimetry
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journal_title:Radiation protection dosimetry
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journal_title:Radiation protection dosimetry
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