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Sparse Rectangular and Spiral Array Designs for 3D Medical Ultrasound Imaging
In three-dimensional (3D) medical ultrasound imaging with two-dimensional (2D) arrays, sparse 2D arrays have been studied to reduce the number of active channels. Among them, sparse 2D arrays with regular or uniform arrangements of elements have advantages of low side lobe energy and uniform field r...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6982845/ https://www.ncbi.nlm.nih.gov/pubmed/31892233 http://dx.doi.org/10.3390/s20010173 |
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author | Yoon, Hansol Song, Tai-Kyong |
author_facet | Yoon, Hansol Song, Tai-Kyong |
author_sort | Yoon, Hansol |
collection | PubMed |
description | In three-dimensional (3D) medical ultrasound imaging with two-dimensional (2D) arrays, sparse 2D arrays have been studied to reduce the number of active channels. Among them, sparse 2D arrays with regular or uniform arrangements of elements have advantages of low side lobe energy and uniform field responses over the entire field of view. This paper presents two uniform sparse array models: sparse rectangular arrays (SRAs) on a rectangular grid and sparse spiral arrays (SSAs) on a sunflower grid. Both arrays can be easily implemented on the commercially available or the custom-made arrays. To suppress the overall grating lobe levels, the transmit (Tx) and receive (Rx) array pairs of both the array models are designed not to have grating lobes at the same locations in the Tx/Rx beam patterns, for which the theoretical design rules are also proposed. Computer simulation results indicate that the proposed array pairs for both the SRAs and the SSAs achieve peak grating lobe levels below –40 dB using about a quarter of the number of elements in the dense rectangular array while maintaining similar beam widths to that of the dense array pair. |
format | Online Article Text |
id | pubmed-6982845 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-69828452020-02-06 Sparse Rectangular and Spiral Array Designs for 3D Medical Ultrasound Imaging Yoon, Hansol Song, Tai-Kyong Sensors (Basel) Article In three-dimensional (3D) medical ultrasound imaging with two-dimensional (2D) arrays, sparse 2D arrays have been studied to reduce the number of active channels. Among them, sparse 2D arrays with regular or uniform arrangements of elements have advantages of low side lobe energy and uniform field responses over the entire field of view. This paper presents two uniform sparse array models: sparse rectangular arrays (SRAs) on a rectangular grid and sparse spiral arrays (SSAs) on a sunflower grid. Both arrays can be easily implemented on the commercially available or the custom-made arrays. To suppress the overall grating lobe levels, the transmit (Tx) and receive (Rx) array pairs of both the array models are designed not to have grating lobes at the same locations in the Tx/Rx beam patterns, for which the theoretical design rules are also proposed. Computer simulation results indicate that the proposed array pairs for both the SRAs and the SSAs achieve peak grating lobe levels below –40 dB using about a quarter of the number of elements in the dense rectangular array while maintaining similar beam widths to that of the dense array pair. MDPI 2019-12-27 /pmc/articles/PMC6982845/ /pubmed/31892233 http://dx.doi.org/10.3390/s20010173 Text en © 2019 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Yoon, Hansol Song, Tai-Kyong Sparse Rectangular and Spiral Array Designs for 3D Medical Ultrasound Imaging |
title | Sparse Rectangular and Spiral Array Designs for 3D Medical Ultrasound Imaging |
title_full | Sparse Rectangular and Spiral Array Designs for 3D Medical Ultrasound Imaging |
title_fullStr | Sparse Rectangular and Spiral Array Designs for 3D Medical Ultrasound Imaging |
title_full_unstemmed | Sparse Rectangular and Spiral Array Designs for 3D Medical Ultrasound Imaging |
title_short | Sparse Rectangular and Spiral Array Designs for 3D Medical Ultrasound Imaging |
title_sort | sparse rectangular and spiral array designs for 3d medical ultrasound imaging |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6982845/ https://www.ncbi.nlm.nih.gov/pubmed/31892233 http://dx.doi.org/10.3390/s20010173 |
work_keys_str_mv | AT yoonhansol sparserectangularandspiralarraydesignsfor3dmedicalultrasoundimaging AT songtaikyong sparserectangularandspiralarraydesignsfor3dmedicalultrasoundimaging |