Effect of Varying Prior Information in Axillary 2D Microwave Tomography
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10451/53367 |
Resumo: | We numerically assess the potential of microwave tomography (MWT) for the detection and dielectric properties estimation of axillary lymph nodes (ALNs), and we study the robustness of our system using prior information with varying levels of accuracy. We adopt a 2-dimensional MWT system with 8 antennas (0.5-2.5 GHz) placed around the axillary region. The reconstruction algorithm implements the distorted Born iterative method. We show that: (i) when accurate prior knowledge of the axillary tissues (fat and muscle) is available, our system successfully detects an ALN; (ii) ±30% error in the prior estimation of fat and muscle dielectric properties does not affect image quality; (iii) ±7mm error in muscle position causes slight artifacts, while ± 14mm error in muscle position affects ALN detection. To the best of our knowledge, this is the first paper in the literature to study the impact of prior information accuracy on detecting an ALN using MWT. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Effect of Varying Prior Information in Axillary 2D Microwave Tomographyaxillary lymph node imagingbreast cancerdistorted Born iterative method (DBIM)microwave tomographyprior informationWe numerically assess the potential of microwave tomography (MWT) for the detection and dielectric properties estimation of axillary lymph nodes (ALNs), and we study the robustness of our system using prior information with varying levels of accuracy. We adopt a 2-dimensional MWT system with 8 antennas (0.5-2.5 GHz) placed around the axillary region. The reconstruction algorithm implements the distorted Born iterative method. We show that: (i) when accurate prior knowledge of the axillary tissues (fat and muscle) is available, our system successfully detects an ALN; (ii) ±30% error in the prior estimation of fat and muscle dielectric properties does not affect image quality; (iii) ±7mm error in muscle position causes slight artifacts, while ± 14mm error in muscle position affects ALN detection. To the best of our knowledge, this is the first paper in the literature to study the impact of prior information accuracy on detecting an ALN using MWT.Repositório da Universidade de LisboaSavazzi, MatteoKaradima, OlympiaFelicio, Joao M.Fernandes, Carlos A.Kosmas, PanagiotisConceicao, Raquel C.2022-06-10T15:45:50Z20222022-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10451/53367eng978-88-31299-04-610.23919/EuCAP53622.2022.9769372info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-08T16:59:06Zoai:repositorio.ul.pt:10451/53367Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:04:19.633851Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Effect of Varying Prior Information in Axillary 2D Microwave Tomography |
title |
Effect of Varying Prior Information in Axillary 2D Microwave Tomography |
spellingShingle |
Effect of Varying Prior Information in Axillary 2D Microwave Tomography Savazzi, Matteo axillary lymph node imaging breast cancer distorted Born iterative method (DBIM) microwave tomography prior information |
title_short |
Effect of Varying Prior Information in Axillary 2D Microwave Tomography |
title_full |
Effect of Varying Prior Information in Axillary 2D Microwave Tomography |
title_fullStr |
Effect of Varying Prior Information in Axillary 2D Microwave Tomography |
title_full_unstemmed |
Effect of Varying Prior Information in Axillary 2D Microwave Tomography |
title_sort |
Effect of Varying Prior Information in Axillary 2D Microwave Tomography |
author |
Savazzi, Matteo |
author_facet |
Savazzi, Matteo Karadima, Olympia Felicio, Joao M. Fernandes, Carlos A. Kosmas, Panagiotis Conceicao, Raquel C. |
author_role |
author |
author2 |
Karadima, Olympia Felicio, Joao M. Fernandes, Carlos A. Kosmas, Panagiotis Conceicao, Raquel C. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Savazzi, Matteo Karadima, Olympia Felicio, Joao M. Fernandes, Carlos A. Kosmas, Panagiotis Conceicao, Raquel C. |
dc.subject.por.fl_str_mv |
axillary lymph node imaging breast cancer distorted Born iterative method (DBIM) microwave tomography prior information |
topic |
axillary lymph node imaging breast cancer distorted Born iterative method (DBIM) microwave tomography prior information |
description |
We numerically assess the potential of microwave tomography (MWT) for the detection and dielectric properties estimation of axillary lymph nodes (ALNs), and we study the robustness of our system using prior information with varying levels of accuracy. We adopt a 2-dimensional MWT system with 8 antennas (0.5-2.5 GHz) placed around the axillary region. The reconstruction algorithm implements the distorted Born iterative method. We show that: (i) when accurate prior knowledge of the axillary tissues (fat and muscle) is available, our system successfully detects an ALN; (ii) ±30% error in the prior estimation of fat and muscle dielectric properties does not affect image quality; (iii) ±7mm error in muscle position causes slight artifacts, while ± 14mm error in muscle position affects ALN detection. To the best of our knowledge, this is the first paper in the literature to study the impact of prior information accuracy on detecting an ALN using MWT. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-06-10T15:45:50Z 2022 2022-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10451/53367 |
url |
http://hdl.handle.net/10451/53367 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
978-88-31299-04-6 10.23919/EuCAP53622.2022.9769372 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799134594092498944 |