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Microwave Antenna System for Muscle Rupture Imaging with a Lossy Gel to Reduce Multipath Interference

Injuries to the hamstring muscles are an increasing problem in sports. Imaging plays a key role in diagnosing and managing athletes with muscle injuries, but there are several problems with conventional imaging modalities with respect to cost and availability. We hypothesized that microwave imaging...

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Detalles Bibliográficos
Autores principales: Guerrero Orozco, Laura, Peterson, Lars, Fhager, Andreas
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9185596/
https://www.ncbi.nlm.nih.gov/pubmed/35684742
http://dx.doi.org/10.3390/s22114121
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author Guerrero Orozco, Laura
Peterson, Lars
Fhager, Andreas
author_facet Guerrero Orozco, Laura
Peterson, Lars
Fhager, Andreas
author_sort Guerrero Orozco, Laura
collection PubMed
description Injuries to the hamstring muscles are an increasing problem in sports. Imaging plays a key role in diagnosing and managing athletes with muscle injuries, but there are several problems with conventional imaging modalities with respect to cost and availability. We hypothesized that microwave imaging could provide improved availability and lower costs and lead to improved and more accurate diagnostics. In this paper, a semicircular microwave imaging array with eight antennae was investigated. A key component in this system is the novel antenna design, which is based on a monopole antenna and a lossy gel. The purpose of the gel is to reduce the effects of multipath signals and improve the imaging quality. Several different gels have been manufactured and evaluated in imaging experiments. For comparison, corresponding simulations were performed. The results showed that the gels can effectively reduce the multipath signals and the imaging experiments resulted in significantly more stable and repeatable reconstructions when a lossy gel was used compared to when an almost non-lossy gel was used.
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spelling pubmed-91855962022-06-11 Microwave Antenna System for Muscle Rupture Imaging with a Lossy Gel to Reduce Multipath Interference Guerrero Orozco, Laura Peterson, Lars Fhager, Andreas Sensors (Basel) Article Injuries to the hamstring muscles are an increasing problem in sports. Imaging plays a key role in diagnosing and managing athletes with muscle injuries, but there are several problems with conventional imaging modalities with respect to cost and availability. We hypothesized that microwave imaging could provide improved availability and lower costs and lead to improved and more accurate diagnostics. In this paper, a semicircular microwave imaging array with eight antennae was investigated. A key component in this system is the novel antenna design, which is based on a monopole antenna and a lossy gel. The purpose of the gel is to reduce the effects of multipath signals and improve the imaging quality. Several different gels have been manufactured and evaluated in imaging experiments. For comparison, corresponding simulations were performed. The results showed that the gels can effectively reduce the multipath signals and the imaging experiments resulted in significantly more stable and repeatable reconstructions when a lossy gel was used compared to when an almost non-lossy gel was used. MDPI 2022-05-29 /pmc/articles/PMC9185596/ /pubmed/35684742 http://dx.doi.org/10.3390/s22114121 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
Guerrero Orozco, Laura
Peterson, Lars
Fhager, Andreas
Microwave Antenna System for Muscle Rupture Imaging with a Lossy Gel to Reduce Multipath Interference
title Microwave Antenna System for Muscle Rupture Imaging with a Lossy Gel to Reduce Multipath Interference
title_full Microwave Antenna System for Muscle Rupture Imaging with a Lossy Gel to Reduce Multipath Interference
title_fullStr Microwave Antenna System for Muscle Rupture Imaging with a Lossy Gel to Reduce Multipath Interference
title_full_unstemmed Microwave Antenna System for Muscle Rupture Imaging with a Lossy Gel to Reduce Multipath Interference
title_short Microwave Antenna System for Muscle Rupture Imaging with a Lossy Gel to Reduce Multipath Interference
title_sort microwave antenna system for muscle rupture imaging with a lossy gel to reduce multipath interference
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9185596/
https://www.ncbi.nlm.nih.gov/pubmed/35684742
http://dx.doi.org/10.3390/s22114121
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