In this paper, the microwave tomography performed using the contrast source inversion method was investigated. A two-dimensional model problem, composed of a cylindrical phantom positioned at the center of the receiving antennas' circular distribution, provided the setup for virtual experiments. Both a homogeneous phantom, with electrical properties that approximate the ones of a dense breast, and several heterogeneous phantoms, with an inclusion whose high electrical properties simulate those of a breast lesion, were considered. The effect of the initial guess on the reconstruction of the homogeneous phantom was assessed for a first investigation. Then, the detectability of the inclusion in the heterogeneous phantom was tested varying its size, position, and electrical properties. Results suggested that a priori information is useful to build a robust initial guess. The inclusion was detectable in the permittivity maps independently of the considered dimension and position, whereas structured noise was predominant in the conductivity maps.

Assessment of the feasibility of breast lesion detection with contrast source inversion for microwave tomography: a virtual experiment / Ronca, Alessandra; Arduino, Alessandro; Zilberti, Luca; Bottauscio, Oriano; Tiberi, Gianluigi. - (2024), pp. 1-5. (Intervento presentato al convegno 2024 18th European Conference on Antennas and Propagation (EuCAP) tenutosi a Glasgow, UK nel 17-22 March 2024) [10.23919/EuCAP60739.2024.10501105].

Assessment of the feasibility of breast lesion detection with contrast source inversion for microwave tomography: a virtual experiment

Alessandro Arduino;Luca Zilberti;Oriano Bottauscio;
2024

Abstract

In this paper, the microwave tomography performed using the contrast source inversion method was investigated. A two-dimensional model problem, composed of a cylindrical phantom positioned at the center of the receiving antennas' circular distribution, provided the setup for virtual experiments. Both a homogeneous phantom, with electrical properties that approximate the ones of a dense breast, and several heterogeneous phantoms, with an inclusion whose high electrical properties simulate those of a breast lesion, were considered. The effect of the initial guess on the reconstruction of the homogeneous phantom was assessed for a first investigation. Then, the detectability of the inclusion in the heterogeneous phantom was tested varying its size, position, and electrical properties. Results suggested that a priori information is useful to build a robust initial guess. The inclusion was detectable in the permittivity maps independently of the considered dimension and position, whereas structured noise was predominant in the conductivity maps.
2024
2024 18th European Conference on Antennas and Propagation (EuCAP)
17-22 March 2024
Glasgow, UK
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11696/80939
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