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3D localization of vena contracta using Doppler ICE imaging in tricuspid valve interventions
PURPOSE: Tricuspid valve (TV) interventions face the challenge of imaging the anatomy and tools because of the ‘TEE-unfriendly’ nature of the TV. In edge-to-edge TV repair, a core step is to position the clip perpendicular to the coaptation gap. In this study, we provide a semi-automated method to l...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer International Publishing
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9463221/ https://www.ncbi.nlm.nih.gov/pubmed/35588338 http://dx.doi.org/10.1007/s11548-022-02660-w |
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author | Nisar, Hareem Fakim, Djalal Bainbridge, Daniel Chen, Elvis C. S. Peters, Terry |
author_facet | Nisar, Hareem Fakim, Djalal Bainbridge, Daniel Chen, Elvis C. S. Peters, Terry |
author_sort | Nisar, Hareem |
collection | PubMed |
description | PURPOSE: Tricuspid valve (TV) interventions face the challenge of imaging the anatomy and tools because of the ‘TEE-unfriendly’ nature of the TV. In edge-to-edge TV repair, a core step is to position the clip perpendicular to the coaptation gap. In this study, we provide a semi-automated method to localize the VC from Doppler intracardiac echo (ICE) imaging in a tracked 3D space, thus providing a pre-mapped location of the coaptation gap to assist device positioning. METHODS: A magnetically tracked ICE probe with Doppler imaging capabilities is employed in this study for imaging three patient-specific TVs placed in a pulsatile heart phantom. For each of the valves, the ICE probe is positioned to image the maximum regurgitant flow for five cardiac cycles. An algorithm then extracts the regurgitation imaging and computes the exact location of the vena contracta on the image. RESULTS: Across the three pathological, patient-specific valves, the average distance error between the detected VC and the ground truth model is [Formula: see text] mm. For each of the valves, one case represented the outlier where the algorithm misidentified the vena contracta to be near the annulus. In such cases, it is recommended to retake the five-second imaging data. CONCLUSION: This study presented a method for ultrasound-based localization of vena contracta in 3D space. Mapping such anatomical landmarks has the potential to assist with device positioning and to simplify tricuspid valve interventions by providing more contextual information to the interventionalists, thus enhancing their spatial awareness. Additionally, ICE can be used to provide live US and Doppler imaging of the complex TV anatomy throughout the procedure. |
format | Online Article Text |
id | pubmed-9463221 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Springer International Publishing |
record_format | MEDLINE/PubMed |
spelling | pubmed-94632212022-09-11 3D localization of vena contracta using Doppler ICE imaging in tricuspid valve interventions Nisar, Hareem Fakim, Djalal Bainbridge, Daniel Chen, Elvis C. S. Peters, Terry Int J Comput Assist Radiol Surg Original Article PURPOSE: Tricuspid valve (TV) interventions face the challenge of imaging the anatomy and tools because of the ‘TEE-unfriendly’ nature of the TV. In edge-to-edge TV repair, a core step is to position the clip perpendicular to the coaptation gap. In this study, we provide a semi-automated method to localize the VC from Doppler intracardiac echo (ICE) imaging in a tracked 3D space, thus providing a pre-mapped location of the coaptation gap to assist device positioning. METHODS: A magnetically tracked ICE probe with Doppler imaging capabilities is employed in this study for imaging three patient-specific TVs placed in a pulsatile heart phantom. For each of the valves, the ICE probe is positioned to image the maximum regurgitant flow for five cardiac cycles. An algorithm then extracts the regurgitation imaging and computes the exact location of the vena contracta on the image. RESULTS: Across the three pathological, patient-specific valves, the average distance error between the detected VC and the ground truth model is [Formula: see text] mm. For each of the valves, one case represented the outlier where the algorithm misidentified the vena contracta to be near the annulus. In such cases, it is recommended to retake the five-second imaging data. CONCLUSION: This study presented a method for ultrasound-based localization of vena contracta in 3D space. Mapping such anatomical landmarks has the potential to assist with device positioning and to simplify tricuspid valve interventions by providing more contextual information to the interventionalists, thus enhancing their spatial awareness. Additionally, ICE can be used to provide live US and Doppler imaging of the complex TV anatomy throughout the procedure. Springer International Publishing 2022-05-19 2022 /pmc/articles/PMC9463221/ /pubmed/35588338 http://dx.doi.org/10.1007/s11548-022-02660-w Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Original Article Nisar, Hareem Fakim, Djalal Bainbridge, Daniel Chen, Elvis C. S. Peters, Terry 3D localization of vena contracta using Doppler ICE imaging in tricuspid valve interventions |
title | 3D localization of vena contracta using Doppler ICE imaging in tricuspid valve interventions |
title_full | 3D localization of vena contracta using Doppler ICE imaging in tricuspid valve interventions |
title_fullStr | 3D localization of vena contracta using Doppler ICE imaging in tricuspid valve interventions |
title_full_unstemmed | 3D localization of vena contracta using Doppler ICE imaging in tricuspid valve interventions |
title_short | 3D localization of vena contracta using Doppler ICE imaging in tricuspid valve interventions |
title_sort | 3d localization of vena contracta using doppler ice imaging in tricuspid valve interventions |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9463221/ https://www.ncbi.nlm.nih.gov/pubmed/35588338 http://dx.doi.org/10.1007/s11548-022-02660-w |
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