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Quantitative Microwave Imaging for Breast Cancer Detection Using a Planar 2.45 GHz System
Mälardalens högskola, Akademin för innovation, design och teknik. (Inteligent Sensor Systems)
L2S/Supélec/Université Paris-SYD 11. (Département de recherche en électromagnétisme)
L2S/Supélec/Université Paris-SYD 11. (Département de recherche en électromagnétisme)
L2S/Supélec/Université Paris-SYD 11. (Département de recherche en électromagnétisme)
2010 (Engelska)Ingår i: IEEE Transactions on Instrumentation and Measurement, ISSN 0018-9456, E-ISSN 1557-9662, Vol. 59, nr 10, s. 2691-2699Artikel i tidskrift (Övrigt vetenskapligt) Published
Abstract [en]

Microwave imaging is recognized as a potentialcandidate for biomedical applications, such as breast tumordetection. In this context a planar microwave camera isinvestigated for quantitative imaging of inhomogeneous objects.Promising simulation results indicates that the planar geometryis suitable for quantitative imaging, as long as the signal to noiseratio is higher than 40 dB. Different calibration techniques arediscussed with several proposed model improvements and thefirst reconstructed quantitative image of an inhomogeneous 2Dobject is obtained by using experimental data from the camera.

Ort, förlag, år, upplaga, sidor
2010. Vol. 59, nr 10, s. 2691-2699
Nyckelord [en]
Microwave Imaging, Nonlinear Inverse Scattering, Breast Cancer Detection, Mammography
Nationell ämneskategori
Annan elektroteknik och elektronik
Forskningsämne
elektronik
Identifikatorer
URN: urn:nbn:se:mdh:diva-5879DOI: 10.1109/TIM.2010.2045540ISI: 000283263900022Scopus ID: 2-s2.0-77956755677OAI: oai:DiVA.org:mdh-5879DiVA, id: diva2:217286
Projekt
Microwaves in biomedicine
Anmärkning

Submitted to IEEE Transaction on Instrumentation and Measurement: IM-09-2086 "©2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE."

Tillgänglig från: 2009-05-13 Skapad: 2009-05-13 Senast uppdaterad: 2019-06-26Bibliografiskt granskad
Ingår i avhandling
1. CONTRIBUTION TO QUANTITATIVE MICROWAVE IMAGING TECHNIQUES FOR BIOMEDICAL APPLICATIONS
Öppna denna publikation i ny flik eller fönster >>CONTRIBUTION TO QUANTITATIVE MICROWAVE IMAGING TECHNIQUES FOR BIOMEDICAL APPLICATIONS
2009 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

This dissertation presents a contribution to quantitative microwave imaging for breast tumor detection. The study made in the frame of a joint supervision Ph.D. thesis between University Paris-SUD 11 (France) and Mälardalen University (Sweden), has been conducted through two experimental microwave imaging setups, the existing 2.45 GHz planar camera (France) and the multi-frequency flexible robotic system, (Sweden), under development. In this context a 2D scalar flexible numerical tool based on a Newton-Kantorovich (NK) scheme, has been developed.

Quantitative microwave imaging is a three dimensional vectorial nonlinear inverse scattering problem, where the complex permittivity of an object is reconstructed from the measured scattered field, produced by the object. The NK scheme is used in order to deal with the nonlinearity and the ill-posed nature of this problem. A TM polarization and a two dimensional medium configuration have been considered in order to avoid its vectorial aspect. The solution is found iteratively by minimizing the square norm of the error with respect to the scattered field data. Consequently, the convergence of such iterative process requires, at least two conditions. First, an efficient calibration of the experimental system has to be associated to the minimization of model errors. Second, the mean square difference of the scattered field introduced by the presence of the tumor has to be large enough, according to the sensitivity of the imaging system.

The existing planar camera associated to a flexible 2D scalar NK code, are considered as an experimental platform for quantitative breast imaging. A preliminary numerical study shows that the multi-view planar system is quite efficient for realistic breast tumor phantoms, according to its characteristics (frequency, planar geometry and water as a coupling medium), as long as realistic noisy data are considered. Furthermore, a multi-incidence planar system, more appropriate in term of antenna-array arrangement, is proposed and its concept is numerically validated.

On the other hand, an experimental work which includes a new fluid-mixture for the realization of a narrow band cylindrical breast phantom, a deep investigation in the calibration process and model error minimization, is presented. This conducts to the first quantitative reconstruction of a realistic breast phantom by using multi-view data from the planar camera. Next, both the qualitative and quantitative reconstruction of 3D inclusions into the cylindrical breast phantom, by using data from all the retina, are shown and discussed. Finally, the extended work towards the flexible robotic system is presented.

Ort, förlag, år, upplaga, sidor
Västerås: Mälardalen University, 2009. s. 113
Serie
Mälardalen University Press Dissertations, ISSN 1651-4238 ; 73
Nyckelord
Quantitative Microwave Imaging. Inverse Problems, Nonliear Inverse Scattering, Diffraction Tomography, Breast Tumor Detection, Biomedical Imaging, Mammography, Calibration, Modeling, Planar 2.45 GHz Microwave Camera, Robot-based flexible multi-frequency data acquisition
Nationell ämneskategori
Annan elektroteknik och elektronik
Forskningsämne
Elektronik
Identifikatorer
urn:nbn:se:mdh:diva-5882 (URN)978-91-86135-27-0 (ISBN)
Disputation
2009-06-09, Lambda, Högskoleplan 1, Västerås, 09:30 (Engelska)
Opponent
Handledare
Projekt
Microwaves in biomedicine
Anmärkning
A dissertation prepared through an international convention for a joint supervision thesis with Université Paris-SUD 11, FranceTillgänglig från: 2009-05-14 Skapad: 2009-05-13 Senast uppdaterad: 2009-05-25Bibliografiskt granskad

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