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Photoacoustic-guided endovenous laser ablation: Characterization and in vivo canine study
Endovenous laser ablation (EVLA) is a minimally invasive surgical procedure, often guided by ultrasound (US) imaging, for treating venous insufficiencies. US imaging limitations in accurately visualizing the catheter and the lack of a temperature monitoring system can lead to sub-optimal outcomes. A...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8416949/ https://www.ncbi.nlm.nih.gov/pubmed/34504765 http://dx.doi.org/10.1016/j.pacs.2021.100298 |
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author | Yan, Yan John, Samuel Shaik, Tanyeem Patel, Bijal Lam, Mai T. Kabbani, Loay Mehrmohammadi, Mohammad |
author_facet | Yan, Yan John, Samuel Shaik, Tanyeem Patel, Bijal Lam, Mai T. Kabbani, Loay Mehrmohammadi, Mohammad |
author_sort | Yan, Yan |
collection | PubMed |
description | Endovenous laser ablation (EVLA) is a minimally invasive surgical procedure, often guided by ultrasound (US) imaging, for treating venous insufficiencies. US imaging limitations in accurately visualizing the catheter and the lack of a temperature monitoring system can lead to sub-optimal outcomes. An integrated photoacoustic (PA)-guided EVLA system has been previously developed and reported to overcome the shortcomings of US-guided procedure. In this study, we further characterized the system and tested the in vivo utility. In addition, PA thermometry was further explored by compensating the variation of PA signal with temperature with respect to the temperature-dependent absorption of blood and water. In vivo imaging results indicated that the PA-guided EVLA system can provide high contrast and accurate images of the ablation catheter tip overlaid on US images of the background tissue. Additionally, absorption-compensated PA signal amplitudes over a relevant range of temperature were measured and demonstrated. |
format | Online Article Text |
id | pubmed-8416949 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-84169492021-09-08 Photoacoustic-guided endovenous laser ablation: Characterization and in vivo canine study Yan, Yan John, Samuel Shaik, Tanyeem Patel, Bijal Lam, Mai T. Kabbani, Loay Mehrmohammadi, Mohammad Photoacoustics Research Article Endovenous laser ablation (EVLA) is a minimally invasive surgical procedure, often guided by ultrasound (US) imaging, for treating venous insufficiencies. US imaging limitations in accurately visualizing the catheter and the lack of a temperature monitoring system can lead to sub-optimal outcomes. An integrated photoacoustic (PA)-guided EVLA system has been previously developed and reported to overcome the shortcomings of US-guided procedure. In this study, we further characterized the system and tested the in vivo utility. In addition, PA thermometry was further explored by compensating the variation of PA signal with temperature with respect to the temperature-dependent absorption of blood and water. In vivo imaging results indicated that the PA-guided EVLA system can provide high contrast and accurate images of the ablation catheter tip overlaid on US images of the background tissue. Additionally, absorption-compensated PA signal amplitudes over a relevant range of temperature were measured and demonstrated. Elsevier 2021-08-30 /pmc/articles/PMC8416949/ /pubmed/34504765 http://dx.doi.org/10.1016/j.pacs.2021.100298 Text en © 2021 The Authors https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Research Article Yan, Yan John, Samuel Shaik, Tanyeem Patel, Bijal Lam, Mai T. Kabbani, Loay Mehrmohammadi, Mohammad Photoacoustic-guided endovenous laser ablation: Characterization and in vivo canine study |
title | Photoacoustic-guided endovenous laser ablation: Characterization and in vivo canine study |
title_full | Photoacoustic-guided endovenous laser ablation: Characterization and in vivo canine study |
title_fullStr | Photoacoustic-guided endovenous laser ablation: Characterization and in vivo canine study |
title_full_unstemmed | Photoacoustic-guided endovenous laser ablation: Characterization and in vivo canine study |
title_short | Photoacoustic-guided endovenous laser ablation: Characterization and in vivo canine study |
title_sort | photoacoustic-guided endovenous laser ablation: characterization and in vivo canine study |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8416949/ https://www.ncbi.nlm.nih.gov/pubmed/34504765 http://dx.doi.org/10.1016/j.pacs.2021.100298 |
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