Image quality evaluation of chest for computed radiography

Detalhes bibliográficos
Autor(a) principal: Velo, A. F. [UNESP]
Data de Publicação: 2013
Outros Autores: Miranda, Diana Rodrigues de Pina [UNESP], Duarte, S. B., Alvarez, M. [UNESP], Oliveira, M. [UNESP], Ribeiro, Sergio Marrone [UNESP], Miranda, J. R. [UNESP]
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1007/978-3-642-29305-4_606
http://hdl.handle.net/11449/75124
Resumo: The daily-to-day of medical practice is marked by a constant search for an accurate diagnosis and therapeutic assessment. For this purpose the doctor serves up a wide variety of imaging techniques, however, the methods using ionizing radiation still the most widely used because it is considered cheaper and above all very efficient when used with control and quality. The optimization of the risk-benefit ratio is considered a major breakthrough in relation to conventional radiology, though this is not the reality of computing and digital radiology, where Brazil has not established standards and protocols for this purpose. This work aims to optimize computational chest radiographs (anterior-posterior projection-AP). To achieve this objective were used a homogeneous phantoms that simulate the characteristics of absorption and scattering of radiation close to the chest of a patient standard. Another factor studied was the subjective evaluation of image quality, carried out by visual grading assessment (VGA) by specialists in radiology, using an anthropomorphic phantom to identify the best image for a particular pathology (fracture or pneumonia). Quantifying the corresponding images indicated by the radiologist was performed from the quantification of physical parameters (Detective Quantum Efficiency - DQE, Modulation Transfer Function - MTF and Noise Power Spectrum - NPS) using the software MatLab®. © 2013 Springer-Verlag.
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spelling Image quality evaluation of chest for computed radiographyComputed RadiographyDetective Quantum EfficiencyModulation Transfer FunctionNoise Power SpectrumVisual Grading AssessmentsAbsorption and scatteringsAnthropomorphic phantomsComputed radiographyDetective quantum efficiencyImage quality evaluationNoise power spectrumSubjective evaluationsVisual gradingBiomedical engineeringImage qualityIonizing radiationMATLABModulationOptical transfer functionOptimizationPhysicsPower spectrumRadiographyRadiologyQuality controlThe daily-to-day of medical practice is marked by a constant search for an accurate diagnosis and therapeutic assessment. For this purpose the doctor serves up a wide variety of imaging techniques, however, the methods using ionizing radiation still the most widely used because it is considered cheaper and above all very efficient when used with control and quality. The optimization of the risk-benefit ratio is considered a major breakthrough in relation to conventional radiology, though this is not the reality of computing and digital radiology, where Brazil has not established standards and protocols for this purpose. This work aims to optimize computational chest radiographs (anterior-posterior projection-AP). To achieve this objective were used a homogeneous phantoms that simulate the characteristics of absorption and scattering of radiation close to the chest of a patient standard. Another factor studied was the subjective evaluation of image quality, carried out by visual grading assessment (VGA) by specialists in radiology, using an anthropomorphic phantom to identify the best image for a particular pathology (fracture or pneumonia). Quantifying the corresponding images indicated by the radiologist was performed from the quantification of physical parameters (Detective Quantum Efficiency - DQE, Modulation Transfer Function - MTF and Noise Power Spectrum - NPS) using the software MatLab®. © 2013 Springer-Verlag.Instituto de Biociências de Botucatu Departamento de Física e Biofísica UNESP, BotucatuFaculdade de Medicina de Botucatu Departamento de Doenças Tropicais e Diagnóstico Por Imagem UNESP, BotucatuCentro Brasileiro de Pesquisas Físicas CBPF, Rio de JaneiroInstituto de Biociências de Botucatu Departamento de Física e Biofísica UNESP, BotucatuFaculdade de Medicina de Botucatu Departamento de Doenças Tropicais e Diagnóstico Por Imagem UNESP, BotucatuUniversidade Estadual Paulista (Unesp)Centro Brasileiro de Pesquisas Físicas (CBPF)Velo, A. F. [UNESP]Miranda, Diana Rodrigues de Pina [UNESP]Duarte, S. B.Alvarez, M. [UNESP]Oliveira, M. [UNESP]Ribeiro, Sergio Marrone [UNESP]Miranda, J. R. [UNESP]2014-05-27T11:28:55Z2014-05-27T11:28:55Z2013-04-16info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject2308-2311http://dx.doi.org/10.1007/978-3-642-29305-4_606IFMBE Proceedings, v. 39 IFMBE, p. 2308-2311.1680-0737http://hdl.handle.net/11449/7512410.1007/978-3-642-29305-4_6062-s2.0-84876034038Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengIFMBE Proceedings0,143info:eu-repo/semantics/openAccess2024-08-15T15:23:39Zoai:repositorio.unesp.br:11449/75124Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-15T15:23:39Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Image quality evaluation of chest for computed radiography
title Image quality evaluation of chest for computed radiography
spellingShingle Image quality evaluation of chest for computed radiography
Velo, A. F. [UNESP]
Computed Radiography
Detective Quantum Efficiency
Modulation Transfer Function
Noise Power Spectrum
Visual Grading Assessments
Absorption and scatterings
Anthropomorphic phantoms
Computed radiography
Detective quantum efficiency
Image quality evaluation
Noise power spectrum
Subjective evaluations
Visual grading
Biomedical engineering
Image quality
Ionizing radiation
MATLAB
Modulation
Optical transfer function
Optimization
Physics
Power spectrum
Radiography
Radiology
Quality control
title_short Image quality evaluation of chest for computed radiography
title_full Image quality evaluation of chest for computed radiography
title_fullStr Image quality evaluation of chest for computed radiography
title_full_unstemmed Image quality evaluation of chest for computed radiography
title_sort Image quality evaluation of chest for computed radiography
author Velo, A. F. [UNESP]
author_facet Velo, A. F. [UNESP]
Miranda, Diana Rodrigues de Pina [UNESP]
Duarte, S. B.
Alvarez, M. [UNESP]
Oliveira, M. [UNESP]
Ribeiro, Sergio Marrone [UNESP]
Miranda, J. R. [UNESP]
author_role author
author2 Miranda, Diana Rodrigues de Pina [UNESP]
Duarte, S. B.
Alvarez, M. [UNESP]
Oliveira, M. [UNESP]
Ribeiro, Sergio Marrone [UNESP]
Miranda, J. R. [UNESP]
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Centro Brasileiro de Pesquisas Físicas (CBPF)
dc.contributor.author.fl_str_mv Velo, A. F. [UNESP]
Miranda, Diana Rodrigues de Pina [UNESP]
Duarte, S. B.
Alvarez, M. [UNESP]
Oliveira, M. [UNESP]
Ribeiro, Sergio Marrone [UNESP]
Miranda, J. R. [UNESP]
dc.subject.por.fl_str_mv Computed Radiography
Detective Quantum Efficiency
Modulation Transfer Function
Noise Power Spectrum
Visual Grading Assessments
Absorption and scatterings
Anthropomorphic phantoms
Computed radiography
Detective quantum efficiency
Image quality evaluation
Noise power spectrum
Subjective evaluations
Visual grading
Biomedical engineering
Image quality
Ionizing radiation
MATLAB
Modulation
Optical transfer function
Optimization
Physics
Power spectrum
Radiography
Radiology
Quality control
topic Computed Radiography
Detective Quantum Efficiency
Modulation Transfer Function
Noise Power Spectrum
Visual Grading Assessments
Absorption and scatterings
Anthropomorphic phantoms
Computed radiography
Detective quantum efficiency
Image quality evaluation
Noise power spectrum
Subjective evaluations
Visual grading
Biomedical engineering
Image quality
Ionizing radiation
MATLAB
Modulation
Optical transfer function
Optimization
Physics
Power spectrum
Radiography
Radiology
Quality control
description The daily-to-day of medical practice is marked by a constant search for an accurate diagnosis and therapeutic assessment. For this purpose the doctor serves up a wide variety of imaging techniques, however, the methods using ionizing radiation still the most widely used because it is considered cheaper and above all very efficient when used with control and quality. The optimization of the risk-benefit ratio is considered a major breakthrough in relation to conventional radiology, though this is not the reality of computing and digital radiology, where Brazil has not established standards and protocols for this purpose. This work aims to optimize computational chest radiographs (anterior-posterior projection-AP). To achieve this objective were used a homogeneous phantoms that simulate the characteristics of absorption and scattering of radiation close to the chest of a patient standard. Another factor studied was the subjective evaluation of image quality, carried out by visual grading assessment (VGA) by specialists in radiology, using an anthropomorphic phantom to identify the best image for a particular pathology (fracture or pneumonia). Quantifying the corresponding images indicated by the radiologist was performed from the quantification of physical parameters (Detective Quantum Efficiency - DQE, Modulation Transfer Function - MTF and Noise Power Spectrum - NPS) using the software MatLab®. © 2013 Springer-Verlag.
publishDate 2013
dc.date.none.fl_str_mv 2013-04-16
2014-05-27T11:28:55Z
2014-05-27T11:28:55Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1007/978-3-642-29305-4_606
IFMBE Proceedings, v. 39 IFMBE, p. 2308-2311.
1680-0737
http://hdl.handle.net/11449/75124
10.1007/978-3-642-29305-4_606
2-s2.0-84876034038
url http://dx.doi.org/10.1007/978-3-642-29305-4_606
http://hdl.handle.net/11449/75124
identifier_str_mv IFMBE Proceedings, v. 39 IFMBE, p. 2308-2311.
1680-0737
10.1007/978-3-642-29305-4_606
2-s2.0-84876034038
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv IFMBE Proceedings
0,143
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 2308-2311
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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