Quantification of Biological Tissue and Construction of Patient Equivalent Phantom (Skull and Chest) for Infants (1-5 years old)

Detalhes bibliográficos
Autor(a) principal: Alves, A. F. [UNESP]
Data de Publicação: 2014
Outros Autores: Pina, D. R., Bacchim Neto, F. A. [UNESP], Ribeiro, S. M., Miranda, J. R. A. [UNESP], Whiting, B. R., Hoeschen, C., Kontos, D.
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1117/12.2043310
http://hdl.handle.net/11449/112610
Resumo: Our main purpose in this study was to quantify biological tissue in computed tomography (CT) examinations with the aim of developing a skull and a chest patient equivalent phantom (PEP), both specific to infants, aged between 1 and 5 years old. This type of phantom is widely used in the development of optimization procedures for radiographic techniques, especially in computed radiography (CR) systems. In order to classify and quantify the biological tissue, we used a computational algorithm developed in Matlab (R). The algorithm performed a histogram of each CT slice followed by a Gaussian fitting of each tissue type. The algorithm determined the mean thickness for the biological tissues (bone, soft, fat, and lung) and also converted them into the corresponding thicknesses of the simulator material (aluminum, PMMA, and air). We retrospectively analyzed 148 CT examinations of infant patients, 56 for skull exams and 92 were for chest. The results provided sufficient data to construct a phantom to simulate the infant chest and skull in the posterior anterior or anterior posterior (PA/AP) view. Both patient equivalent phantoms developed in this study can be used to assess physical variables such as noise power spectrum (NPS) and signal to noise ratio (SNR) or perform dosimetric control specific to pediatric protocols.
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spelling Quantification of Biological Tissue and Construction of Patient Equivalent Phantom (Skull and Chest) for Infants (1-5 years old)tissue quantificationcomputational algorithmpatient equivalent phantomchest phantomskull phantompediatric radiologypediatric phantomOur main purpose in this study was to quantify biological tissue in computed tomography (CT) examinations with the aim of developing a skull and a chest patient equivalent phantom (PEP), both specific to infants, aged between 1 and 5 years old. This type of phantom is widely used in the development of optimization procedures for radiographic techniques, especially in computed radiography (CR) systems. In order to classify and quantify the biological tissue, we used a computational algorithm developed in Matlab (R). The algorithm performed a histogram of each CT slice followed by a Gaussian fitting of each tissue type. The algorithm determined the mean thickness for the biological tissues (bone, soft, fat, and lung) and also converted them into the corresponding thicknesses of the simulator material (aluminum, PMMA, and air). We retrospectively analyzed 148 CT examinations of infant patients, 56 for skull exams and 92 were for chest. The results provided sufficient data to construct a phantom to simulate the infant chest and skull in the posterior anterior or anterior posterior (PA/AP) view. Both patient equivalent phantoms developed in this study can be used to assess physical variables such as noise power spectrum (NPS) and signal to noise ratio (SNR) or perform dosimetric control specific to pediatric protocols.Univ Estadual Paulista UNESP, Botucatu Biosci Inst, Dept Phys & Biophys, BR-18618000 Botucatu, SP, BrazilUniv Estadual Paulista UNESP, Botucatu Biosci Inst, Dept Phys & Biophys, BR-18618000 Botucatu, SP, BrazilSpie - Int Soc Optical EngineeringUniversidade Estadual Paulista (Unesp)Alves, A. F. [UNESP]Pina, D. R.Bacchim Neto, F. A. [UNESP]Ribeiro, S. M.Miranda, J. R. A. [UNESP]Whiting, B. R.Hoeschen, C.Kontos, D.2014-12-03T13:10:52Z2014-12-03T13:10:52Z2014-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject6application/pdfhttp://dx.doi.org/10.1117/12.2043310Medical Imaging 2014: Physics Of Medical Imaging. Bellingham: Spie-int Soc Optical Engineering, v. 9033, 6 p., 2014.0277-786Xhttp://hdl.handle.net/11449/11261010.1117/12.2043310WOS:000338775800164WOS000338775800164.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMedical Imaging 2014: Physics Of Medical Imaginginfo:eu-repo/semantics/openAccess2023-12-17T06:20:25Zoai:repositorio.unesp.br:11449/112610Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:34:11.084637Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Quantification of Biological Tissue and Construction of Patient Equivalent Phantom (Skull and Chest) for Infants (1-5 years old)
title Quantification of Biological Tissue and Construction of Patient Equivalent Phantom (Skull and Chest) for Infants (1-5 years old)
spellingShingle Quantification of Biological Tissue and Construction of Patient Equivalent Phantom (Skull and Chest) for Infants (1-5 years old)
Alves, A. F. [UNESP]
tissue quantification
computational algorithm
patient equivalent phantom
chest phantom
skull phantom
pediatric radiology
pediatric phantom
title_short Quantification of Biological Tissue and Construction of Patient Equivalent Phantom (Skull and Chest) for Infants (1-5 years old)
title_full Quantification of Biological Tissue and Construction of Patient Equivalent Phantom (Skull and Chest) for Infants (1-5 years old)
title_fullStr Quantification of Biological Tissue and Construction of Patient Equivalent Phantom (Skull and Chest) for Infants (1-5 years old)
title_full_unstemmed Quantification of Biological Tissue and Construction of Patient Equivalent Phantom (Skull and Chest) for Infants (1-5 years old)
title_sort Quantification of Biological Tissue and Construction of Patient Equivalent Phantom (Skull and Chest) for Infants (1-5 years old)
author Alves, A. F. [UNESP]
author_facet Alves, A. F. [UNESP]
Pina, D. R.
Bacchim Neto, F. A. [UNESP]
Ribeiro, S. M.
Miranda, J. R. A. [UNESP]
Whiting, B. R.
Hoeschen, C.
Kontos, D.
author_role author
author2 Pina, D. R.
Bacchim Neto, F. A. [UNESP]
Ribeiro, S. M.
Miranda, J. R. A. [UNESP]
Whiting, B. R.
Hoeschen, C.
Kontos, D.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Alves, A. F. [UNESP]
Pina, D. R.
Bacchim Neto, F. A. [UNESP]
Ribeiro, S. M.
Miranda, J. R. A. [UNESP]
Whiting, B. R.
Hoeschen, C.
Kontos, D.
dc.subject.por.fl_str_mv tissue quantification
computational algorithm
patient equivalent phantom
chest phantom
skull phantom
pediatric radiology
pediatric phantom
topic tissue quantification
computational algorithm
patient equivalent phantom
chest phantom
skull phantom
pediatric radiology
pediatric phantom
description Our main purpose in this study was to quantify biological tissue in computed tomography (CT) examinations with the aim of developing a skull and a chest patient equivalent phantom (PEP), both specific to infants, aged between 1 and 5 years old. This type of phantom is widely used in the development of optimization procedures for radiographic techniques, especially in computed radiography (CR) systems. In order to classify and quantify the biological tissue, we used a computational algorithm developed in Matlab (R). The algorithm performed a histogram of each CT slice followed by a Gaussian fitting of each tissue type. The algorithm determined the mean thickness for the biological tissues (bone, soft, fat, and lung) and also converted them into the corresponding thicknesses of the simulator material (aluminum, PMMA, and air). We retrospectively analyzed 148 CT examinations of infant patients, 56 for skull exams and 92 were for chest. The results provided sufficient data to construct a phantom to simulate the infant chest and skull in the posterior anterior or anterior posterior (PA/AP) view. Both patient equivalent phantoms developed in this study can be used to assess physical variables such as noise power spectrum (NPS) and signal to noise ratio (SNR) or perform dosimetric control specific to pediatric protocols.
publishDate 2014
dc.date.none.fl_str_mv 2014-12-03T13:10:52Z
2014-12-03T13:10:52Z
2014-01-01
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/10.1117/12.2043310
Medical Imaging 2014: Physics Of Medical Imaging. Bellingham: Spie-int Soc Optical Engineering, v. 9033, 6 p., 2014.
0277-786X
http://hdl.handle.net/11449/112610
10.1117/12.2043310
WOS:000338775800164
WOS000338775800164.pdf
url http://dx.doi.org/10.1117/12.2043310
http://hdl.handle.net/11449/112610
identifier_str_mv Medical Imaging 2014: Physics Of Medical Imaging. Bellingham: Spie-int Soc Optical Engineering, v. 9033, 6 p., 2014.
0277-786X
10.1117/12.2043310
WOS:000338775800164
WOS000338775800164.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Medical Imaging 2014: Physics Of Medical Imaging
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 6
application/pdf
dc.publisher.none.fl_str_mv Spie - Int Soc Optical Engineering
publisher.none.fl_str_mv Spie - Int Soc Optical Engineering
dc.source.none.fl_str_mv Web of Science
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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