Excluding Echo Shift Noise in Real-Time Pulse-Echo Speed-of-Sound Imaging

Computed ultrasound tomography in echo mode (CUTE) allows real-time imaging of the tissue speed of sound (SoS) using handheld ultrasound. The SoS is retrieved by inverting a forward model that relates the spatial distribution of the tissue SoS to echo shift maps detected between varying transmit and...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Parisa Salemi Yolgunlu [verfasserIn] Naiara Korta Martiartu [verfasserIn] Urs Richard Gerber [verfasserIn] Martin Frenz [verfasserIn] Michael Jaeger [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	pulse-echo ultrasound speed of sound phase noise echo shift inverse problem

Übergeordnetes Werk:	In: Sensors - MDPI AG, 2003, 23(2023), 12, p 5598
Übergeordnetes Werk:	volume:23 ; year:2023 ; number:12, p 5598

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/s23125598

Katalog-ID:	DOAJ094063192

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520			\|a Computed ultrasound tomography in echo mode (CUTE) allows real-time imaging of the tissue speed of sound (SoS) using handheld ultrasound. The SoS is retrieved by inverting a forward model that relates the spatial distribution of the tissue SoS to echo shift maps detected between varying transmit and receive angles. Despite promising results, in vivo SoS maps often show artifacts due to elevated noise in echo shift maps. To minimize artifacts, we propose a technique where an individual SoS map is reconstructed for each echo shift map separately, as opposed to a single SoS map from all echo shift maps simultaneously. The final SoS map is then obtained as a weighted average over all SoS maps. Due to the partial redundancy between different angle combinations, artifacts that appear only in a subset of the individual maps can be excluded via the averaging weights. We investigate this real-time capable technique in simulations using two numerical phantoms, one with a circular inclusion and one with two layers. Our results demonstrate that the SoS maps reconstructed using the proposed technique are equivalent to the ones using simultaneous reconstruction when considering uncorrupted data but show significantly reduced artifact level for data that are corrupted by noise.
650		4	\|a pulse-echo ultrasound
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allfieldsSound	10.3390/s23125598 doi (DE-627)DOAJ094063192 (DE-599)DOAJ883f8371917a438e82679e7c8a1e5265 DE-627 ger DE-627 rakwb eng TP1-1185 Parisa Salemi Yolgunlu verfasserin aut Excluding Echo Shift Noise in Real-Time Pulse-Echo Speed-of-Sound Imaging 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Computed ultrasound tomography in echo mode (CUTE) allows real-time imaging of the tissue speed of sound (SoS) using handheld ultrasound. The SoS is retrieved by inverting a forward model that relates the spatial distribution of the tissue SoS to echo shift maps detected between varying transmit and receive angles. Despite promising results, in vivo SoS maps often show artifacts due to elevated noise in echo shift maps. To minimize artifacts, we propose a technique where an individual SoS map is reconstructed for each echo shift map separately, as opposed to a single SoS map from all echo shift maps simultaneously. The final SoS map is then obtained as a weighted average over all SoS maps. Due to the partial redundancy between different angle combinations, artifacts that appear only in a subset of the individual maps can be excluded via the averaging weights. We investigate this real-time capable technique in simulations using two numerical phantoms, one with a circular inclusion and one with two layers. Our results demonstrate that the SoS maps reconstructed using the proposed technique are equivalent to the ones using simultaneous reconstruction when considering uncorrupted data but show significantly reduced artifact level for data that are corrupted by noise. pulse-echo ultrasound speed of sound phase noise echo shift inverse problem Chemical technology Naiara Korta Martiartu verfasserin aut Urs Richard Gerber verfasserin aut Martin Frenz verfasserin aut Michael Jaeger verfasserin aut In Sensors MDPI AG, 2003 23(2023), 12, p 5598 (DE-627)331640910 (DE-600)2052857-7 14248220 nnns volume:23 year:2023 number:12, p 5598 https://doi.org/10.3390/s23125598 kostenfrei https://doaj.org/article/883f8371917a438e82679e7c8a1e5265 kostenfrei https://www.mdpi.com/1424-8220/23/12/5598 kostenfrei https://doaj.org/toc/1424-8220 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2111 GBV_ILN_2507 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 23 2023 12, p 5598
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callnumber-first	T - Technology
author	Parisa Salemi Yolgunlu
spellingShingle	Parisa Salemi Yolgunlu misc TP1-1185 misc pulse-echo ultrasound misc speed of sound misc phase noise misc echo shift misc inverse problem misc Chemical technology Excluding Echo Shift Noise in Real-Time Pulse-Echo Speed-of-Sound Imaging
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topic_title	TP1-1185 Excluding Echo Shift Noise in Real-Time Pulse-Echo Speed-of-Sound Imaging pulse-echo ultrasound speed of sound phase noise echo shift inverse problem
topic	misc TP1-1185 misc pulse-echo ultrasound misc speed of sound misc phase noise misc echo shift misc inverse problem misc Chemical technology
topic_unstemmed	misc TP1-1185 misc pulse-echo ultrasound misc speed of sound misc phase noise misc echo shift misc inverse problem misc Chemical technology
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title	Excluding Echo Shift Noise in Real-Time Pulse-Echo Speed-of-Sound Imaging
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title_full	Excluding Echo Shift Noise in Real-Time Pulse-Echo Speed-of-Sound Imaging
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author_browse	Parisa Salemi Yolgunlu Naiara Korta Martiartu Urs Richard Gerber Martin Frenz Michael Jaeger
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title_sort	excluding echo shift noise in real-time pulse-echo speed-of-sound imaging
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title_auth	Excluding Echo Shift Noise in Real-Time Pulse-Echo Speed-of-Sound Imaging
abstract	Computed ultrasound tomography in echo mode (CUTE) allows real-time imaging of the tissue speed of sound (SoS) using handheld ultrasound. The SoS is retrieved by inverting a forward model that relates the spatial distribution of the tissue SoS to echo shift maps detected between varying transmit and receive angles. Despite promising results, in vivo SoS maps often show artifacts due to elevated noise in echo shift maps. To minimize artifacts, we propose a technique where an individual SoS map is reconstructed for each echo shift map separately, as opposed to a single SoS map from all echo shift maps simultaneously. The final SoS map is then obtained as a weighted average over all SoS maps. Due to the partial redundancy between different angle combinations, artifacts that appear only in a subset of the individual maps can be excluded via the averaging weights. We investigate this real-time capable technique in simulations using two numerical phantoms, one with a circular inclusion and one with two layers. Our results demonstrate that the SoS maps reconstructed using the proposed technique are equivalent to the ones using simultaneous reconstruction when considering uncorrupted data but show significantly reduced artifact level for data that are corrupted by noise.
abstractGer	Computed ultrasound tomography in echo mode (CUTE) allows real-time imaging of the tissue speed of sound (SoS) using handheld ultrasound. The SoS is retrieved by inverting a forward model that relates the spatial distribution of the tissue SoS to echo shift maps detected between varying transmit and receive angles. Despite promising results, in vivo SoS maps often show artifacts due to elevated noise in echo shift maps. To minimize artifacts, we propose a technique where an individual SoS map is reconstructed for each echo shift map separately, as opposed to a single SoS map from all echo shift maps simultaneously. The final SoS map is then obtained as a weighted average over all SoS maps. Due to the partial redundancy between different angle combinations, artifacts that appear only in a subset of the individual maps can be excluded via the averaging weights. We investigate this real-time capable technique in simulations using two numerical phantoms, one with a circular inclusion and one with two layers. Our results demonstrate that the SoS maps reconstructed using the proposed technique are equivalent to the ones using simultaneous reconstruction when considering uncorrupted data but show significantly reduced artifact level for data that are corrupted by noise.
abstract_unstemmed	Computed ultrasound tomography in echo mode (CUTE) allows real-time imaging of the tissue speed of sound (SoS) using handheld ultrasound. The SoS is retrieved by inverting a forward model that relates the spatial distribution of the tissue SoS to echo shift maps detected between varying transmit and receive angles. Despite promising results, in vivo SoS maps often show artifacts due to elevated noise in echo shift maps. To minimize artifacts, we propose a technique where an individual SoS map is reconstructed for each echo shift map separately, as opposed to a single SoS map from all echo shift maps simultaneously. The final SoS map is then obtained as a weighted average over all SoS maps. Due to the partial redundancy between different angle combinations, artifacts that appear only in a subset of the individual maps can be excluded via the averaging weights. We investigate this real-time capable technique in simulations using two numerical phantoms, one with a circular inclusion and one with two layers. Our results demonstrate that the SoS maps reconstructed using the proposed technique are equivalent to the ones using simultaneous reconstruction when considering uncorrupted data but show significantly reduced artifact level for data that are corrupted by noise.
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title_short	Excluding Echo Shift Noise in Real-Time Pulse-Echo Speed-of-Sound Imaging
url	https://doi.org/10.3390/s23125598 https://doaj.org/article/883f8371917a438e82679e7c8a1e5265 https://www.mdpi.com/1424-8220/23/12/5598 https://doaj.org/toc/1424-8220
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up_date	2024-07-03T21:02:31.711Z
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Excluding Echo Shift Noise in Real-Time Pulse-Echo Speed-of-Sound Imaging

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