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Experimental Assessment of Axillary Lymph Node Microwave Tomography Using Anthropomorphic Phantoms

2023Artigo científico Acesso aberto
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dc.contributor.authorSavazzi, Matteo
dc.contributor.authorKaradima, Olympia
dc.contributor.authorDuarte, David O. Rodriguez
dc.contributor.authorTobon, Jorge
dc.contributor.authorVipiana, Francesca
dc.contributor.authorKosmas, Panagiotis
dc.contributor.authorFernandes, Carlos A.
dc.contributor.authorFelicio, Joao M.
dc.contributor.authorConceicao, Raquel C.
dc.date.accessioned2023-02-20T12:14:17Z
dc.date.available2023-02-20T12:14:17Z
dc.date.issued2023
dc.description.abstractAbstract—We assess the application of microwave tomography (MWT) for the detection of axillary lymph nodes (ALNs) in breast cancer patients. We numerically study the effects of limiting angular view in axillary MWT, as probes can only be placed on a limited arc around the axillary region. We also numerically study the possibility of increasing the amount of retrievable information by acquiring data in two consecutive steps, with a single antenna set in two different angular positions. We finally experimentally test axillary MWT on anthropomorphic phantoms with different levels of anatomical fidelity, and different ALN positions. Our MWT system (0.8-2.5GHz) employs 6 monopole antennas placed on a single transverse plane, facing the axillary region. The reconstruction algorithm implements the distorted Born iterative method, combined with the two-step iterative shrinkage/thresholding for the inversion (DBIM-TwIST). Our numerical results (i) highlight the challenges associated with the limited angular view, and (ii) show that performing two-step angular measurements enhance imaging results, suggesting that rotating the antenna set between consecutive measurements is an effective means to increase the retrievable information in ALN MWT. Our experimental results show that our MWT system can detect an ALN in different positions. To the best of our knowledge this is the first paper to assess ALN MWT in a realistic 3D experimental scenario.pt_PT
dc.description.versioninfo:eu-repo/semantics/acceptedVersionpt_PT
dc.identifier.doi10.1109/JERM.2023.3241777pt_PT
dc.identifier.urihttp://hdl.handle.net/10451/56384
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationFundação para a Ciência e a Tecnologia-FCT, FCT/MEC (PIDDAC) under the Strategic Programme UIDB/00645/2020pt_PT
dc.relationFundação para a Ciência e a Tecnologia-FCT, FCT/MEC (PIDDAC) under the Strategic Programme UIDB/50008/2020pt_PT
dc.relationFundação para a Ciência e a Tecnologia-FCT 2021.05385.BDpt_PT
dc.relationEMERALD project funded from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 764479pt_PT
dc.subjectaxillary lymph node imagingpt_PT
dc.subjectbreast cancerpt_PT
dc.subjectdistorted Born iterative method (DBIM)pt_PT
dc.subjectlimited angular informationpt_PT
dc.subjectmedical microwave imagingpt_PT
dc.subjectmicrowave tomographypt_PT
dc.titleExperimental Assessment of Axillary Lymph Node Microwave Tomography Using Anthropomorphic Phantomspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage8pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleIEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biologypt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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