Phantom Study of a Flat-Faceted Air-Based Microwave Breast Imaging System

Imaging results obtained using a flat-faceted quasiresonant air-based microwave breast imaging system are presented. These results are part of a phantom study wherein the imaging performance of the system is analyzed using various 3D breast phantoms. The phantoms are composed of three regions filled...

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Bibliographic Details
Published inIET Conference Proceedings
Main Authors LoVetri, J, Asefi, M, Abdollahi, N, Brown, K, Geddert, N, Jeffrey, I
Format Conference Proceeding
LanguageEnglish
Published Stevenage The Institution of Engineering & Technology 09.04.2018
Subjects
Algorithms
Breast
Complex permittivity
Computational fluid dynamics
Dielectric properties
Galerkin method
Imaging
Inversions
Mathematical problems
Submerging
Tumors
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Summary:Imaging results obtained using a flat-faceted quasiresonant air-based microwave breast imaging system are presented. These results are part of a phantom study wherein the imaging performance of the system is analyzed using various 3D breast phantoms. The phantoms are composed of three regions filled with fluids that mimick the dielectric properties of fat, fibroglandular, and tumour tissue. Full 3D images of the real and imaginary parts of the complex permittivity are produced using the Contrast Source Inversion algorithm with the electromagnetic modeling performed using either the Finite-Element or the Discontinuous Galerkin methods. Half-loop field probes are used to collect tangential magnetic-field data at various locations on the inner surface of the chamber. Air is used as the physical immersion medium but various inhomogeneous numerical backgrounds are utilized in the inversion model to regularize the mathematical problem. Single-frequency inversions are performed in the 0.9-2 GHz bandwidth. Tumour detection is used to measure imaging performance.
ISBN:1785618164
9781785618161
DOI:10.1049/cp.2018.0790