Photoacoustic needle improves needle tip visibility during deep peripheral nerve block

Abstract We developed a novel technology using the photoacoustic effect that improve needle tip visibility. We evaluated whether this technology improves needle tip visibility when performing a deep peripheral nerve block in a cadaver model. A photoacoustic needle was developed using a conventional...

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Autores principales: Kunitaro Watanabe, Joho Tokumine, Alan Kawarai Lefor, Harumasa Nakazawa, Katsuya Yamamoto, Hiroyuki Karasawa, Miki Nagase, Tomoko Yorozu
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Lenguaje:EN
Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/5173e8ae44074ec7af258357fcd72100
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spelling oai:doaj.org-article:5173e8ae44074ec7af258357fcd721002021-12-02T17:32:58ZPhotoacoustic needle improves needle tip visibility during deep peripheral nerve block10.1038/s41598-021-87777-92045-2322https://doaj.org/article/5173e8ae44074ec7af258357fcd721002021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-87777-9https://doaj.org/toc/2045-2322Abstract We developed a novel technology using the photoacoustic effect that improve needle tip visibility. We evaluated whether this technology improves needle tip visibility when performing a deep peripheral nerve block in a cadaver model. A photoacoustic needle was developed using a conventional echogenic needle with an intraluminal optical fiber. A pulsed laser sends light from a source through the fiber, which is converted to ultrasound at the needle tip using the photoacoustic effect. A nerve block expert performed deep nerve blocks using the photoacoustic needle and the ultrasound views recorded, with or without photoacoustic ultrasound at the needle tip. Needle tip visibility was evaluated by questionnaire (Likert scale 1: very poor, 5: very good) completed by anesthesiologists evaluating recorded images. The score was presented as median [first quartile, third quartile]. Statistical analysis was performed using the Wilcoxon matched-pairs signed rank test. The scores of needle tip visibility with photoacoustic ultrasound from the needle tip (4.3 [4.0, 4.5]) was significantly higher than that without photoacoustic ultrasound (3.5 [3.2, 3.8]) (p < 0.01). Ultrasound emitted at the needle tip using the photoacoustic effect improves needle tip visibility during deep peripheral nerve blocks. Clinical trial number University Hospital Medical Information Network Center Clinical Trials Registration System (UMIN000036974).Kunitaro WatanabeJoho TokumineAlan Kawarai LeforHarumasa NakazawaKatsuya YamamotoHiroyuki KarasawaMiki NagaseTomoko YorozuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Kunitaro Watanabe
Joho Tokumine
Alan Kawarai Lefor
Harumasa Nakazawa
Katsuya Yamamoto
Hiroyuki Karasawa
Miki Nagase
Tomoko Yorozu
Photoacoustic needle improves needle tip visibility during deep peripheral nerve block
description Abstract We developed a novel technology using the photoacoustic effect that improve needle tip visibility. We evaluated whether this technology improves needle tip visibility when performing a deep peripheral nerve block in a cadaver model. A photoacoustic needle was developed using a conventional echogenic needle with an intraluminal optical fiber. A pulsed laser sends light from a source through the fiber, which is converted to ultrasound at the needle tip using the photoacoustic effect. A nerve block expert performed deep nerve blocks using the photoacoustic needle and the ultrasound views recorded, with or without photoacoustic ultrasound at the needle tip. Needle tip visibility was evaluated by questionnaire (Likert scale 1: very poor, 5: very good) completed by anesthesiologists evaluating recorded images. The score was presented as median [first quartile, third quartile]. Statistical analysis was performed using the Wilcoxon matched-pairs signed rank test. The scores of needle tip visibility with photoacoustic ultrasound from the needle tip (4.3 [4.0, 4.5]) was significantly higher than that without photoacoustic ultrasound (3.5 [3.2, 3.8]) (p < 0.01). Ultrasound emitted at the needle tip using the photoacoustic effect improves needle tip visibility during deep peripheral nerve blocks. Clinical trial number University Hospital Medical Information Network Center Clinical Trials Registration System (UMIN000036974).
format article
author Kunitaro Watanabe
Joho Tokumine
Alan Kawarai Lefor
Harumasa Nakazawa
Katsuya Yamamoto
Hiroyuki Karasawa
Miki Nagase
Tomoko Yorozu
author_facet Kunitaro Watanabe
Joho Tokumine
Alan Kawarai Lefor
Harumasa Nakazawa
Katsuya Yamamoto
Hiroyuki Karasawa
Miki Nagase
Tomoko Yorozu
author_sort Kunitaro Watanabe
title Photoacoustic needle improves needle tip visibility during deep peripheral nerve block
title_short Photoacoustic needle improves needle tip visibility during deep peripheral nerve block
title_full Photoacoustic needle improves needle tip visibility during deep peripheral nerve block
title_fullStr Photoacoustic needle improves needle tip visibility during deep peripheral nerve block
title_full_unstemmed Photoacoustic needle improves needle tip visibility during deep peripheral nerve block
title_sort photoacoustic needle improves needle tip visibility during deep peripheral nerve block
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/5173e8ae44074ec7af258357fcd72100
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