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Three-Dimensional Microwave Head Imaging with GPU-Based FDTD and the DBIM Method

We present a preliminary study of microwave head imaging using a three-dimensional (3-D) implementation of the distorted Born iterative method (DBIM). Our aim is to examine the benefits of using the more computationally intensive 3-D implementation in scenarios where limited prior information is ava...

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Detalles Bibliográficos
Autores principales: Lu, Pan, Kosmas, Panagiotis
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9002921/
https://www.ncbi.nlm.nih.gov/pubmed/35408305
http://dx.doi.org/10.3390/s22072691
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author Lu, Pan
Kosmas, Panagiotis
author_facet Lu, Pan
Kosmas, Panagiotis
author_sort Lu, Pan
collection PubMed
description We present a preliminary study of microwave head imaging using a three-dimensional (3-D) implementation of the distorted Born iterative method (DBIM). Our aim is to examine the benefits of using the more computationally intensive 3-D implementation in scenarios where limited prior information is available, or when the target occupies an area that is not covered by the imaging array’s transverse planes. We show that, in some cases, the 3-D implementation outperforms its two-dimensional (2-D) counterpart despite the increased number of unknowns for the linear problem at each DBIM iteration. We also discuss how the 3-D algorithm can be implemented efficiently using graphic processing units (GPUs) and validate this implementation with experimental data from a simplified brain phantom. In this work, we have implemented a non-linear microwave imaging approach using DBIM with GPU-accelerated FDTD. Moreover, the paper offers a direct comparison of 2-D and 3-D microwave tomography implementations for head imaging and stroke detection in inhomogenous anatomically complex numerical head phantoms.
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spelling pubmed-90029212022-04-13 Three-Dimensional Microwave Head Imaging with GPU-Based FDTD and the DBIM Method Lu, Pan Kosmas, Panagiotis Sensors (Basel) Article We present a preliminary study of microwave head imaging using a three-dimensional (3-D) implementation of the distorted Born iterative method (DBIM). Our aim is to examine the benefits of using the more computationally intensive 3-D implementation in scenarios where limited prior information is available, or when the target occupies an area that is not covered by the imaging array’s transverse planes. We show that, in some cases, the 3-D implementation outperforms its two-dimensional (2-D) counterpart despite the increased number of unknowns for the linear problem at each DBIM iteration. We also discuss how the 3-D algorithm can be implemented efficiently using graphic processing units (GPUs) and validate this implementation with experimental data from a simplified brain phantom. In this work, we have implemented a non-linear microwave imaging approach using DBIM with GPU-accelerated FDTD. Moreover, the paper offers a direct comparison of 2-D and 3-D microwave tomography implementations for head imaging and stroke detection in inhomogenous anatomically complex numerical head phantoms. MDPI 2022-03-31 /pmc/articles/PMC9002921/ /pubmed/35408305 http://dx.doi.org/10.3390/s22072691 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Lu, Pan
Kosmas, Panagiotis
Three-Dimensional Microwave Head Imaging with GPU-Based FDTD and the DBIM Method
title Three-Dimensional Microwave Head Imaging with GPU-Based FDTD and the DBIM Method
title_full Three-Dimensional Microwave Head Imaging with GPU-Based FDTD and the DBIM Method
title_fullStr Three-Dimensional Microwave Head Imaging with GPU-Based FDTD and the DBIM Method
title_full_unstemmed Three-Dimensional Microwave Head Imaging with GPU-Based FDTD and the DBIM Method
title_short Three-Dimensional Microwave Head Imaging with GPU-Based FDTD and the DBIM Method
title_sort three-dimensional microwave head imaging with gpu-based fdtd and the dbim method
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9002921/
https://www.ncbi.nlm.nih.gov/pubmed/35408305
http://dx.doi.org/10.3390/s22072691
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