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Empirical retinal venous pulse wave velocity using modified photoplethysmography
OBJECTIVE: Using the novel imaging method of high-speed modified photoplethysmography we measured the retinal venous pulse wave velocity in a single case. RESULTS: A healthy 30-year-old subject underwent high-speed modified photoplethysmography (120 frames per second) with simultaneous ophthalmodyna...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10082983/ https://www.ncbi.nlm.nih.gov/pubmed/37031176 http://dx.doi.org/10.1186/s13104-023-06309-y |
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author | Abdul-Rahman, Anmar Morgan, William Vukmirovic, Aleksandar Mehnert, Andrew Obreschow, Danail Yu, Dao-Yi |
author_facet | Abdul-Rahman, Anmar Morgan, William Vukmirovic, Aleksandar Mehnert, Andrew Obreschow, Danail Yu, Dao-Yi |
author_sort | Abdul-Rahman, Anmar |
collection | PubMed |
description | OBJECTIVE: Using the novel imaging method of high-speed modified photoplethysmography we measured the retinal venous pulse wave velocity in a single case. RESULTS: A healthy 30-year-old subject underwent high-speed modified photoplethysmography (120 frames per second) with simultaneous ophthalmodynamometry at 26 Meditron units. A video of the optic nerve was analyzed using custom software. A harmonic regression model was fitted to each pixel in the time series and used to quantify the retinal vascular pulse wave parameters. Retinal venous pulsation at the optic disc was observed as a complex dynamic wall motion, whereas contraction commenced at a point in the vein at the center of the optic disc, and progressed centrifugally. The empirically estimated retinal venous pulse wave velocity at this segment was approximately 22.24694 mm/s. This measurement provides an estimate for future studies in the field. |
format | Online Article Text |
id | pubmed-10082983 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-100829832023-04-10 Empirical retinal venous pulse wave velocity using modified photoplethysmography Abdul-Rahman, Anmar Morgan, William Vukmirovic, Aleksandar Mehnert, Andrew Obreschow, Danail Yu, Dao-Yi BMC Res Notes Research Note OBJECTIVE: Using the novel imaging method of high-speed modified photoplethysmography we measured the retinal venous pulse wave velocity in a single case. RESULTS: A healthy 30-year-old subject underwent high-speed modified photoplethysmography (120 frames per second) with simultaneous ophthalmodynamometry at 26 Meditron units. A video of the optic nerve was analyzed using custom software. A harmonic regression model was fitted to each pixel in the time series and used to quantify the retinal vascular pulse wave parameters. Retinal venous pulsation at the optic disc was observed as a complex dynamic wall motion, whereas contraction commenced at a point in the vein at the center of the optic disc, and progressed centrifugally. The empirically estimated retinal venous pulse wave velocity at this segment was approximately 22.24694 mm/s. This measurement provides an estimate for future studies in the field. BioMed Central 2023-04-08 /pmc/articles/PMC10082983/ /pubmed/37031176 http://dx.doi.org/10.1186/s13104-023-06309-y Text en © The Author(s) 2023 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/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data. |
spellingShingle | Research Note Abdul-Rahman, Anmar Morgan, William Vukmirovic, Aleksandar Mehnert, Andrew Obreschow, Danail Yu, Dao-Yi Empirical retinal venous pulse wave velocity using modified photoplethysmography |
title | Empirical retinal venous pulse wave velocity using modified photoplethysmography |
title_full | Empirical retinal venous pulse wave velocity using modified photoplethysmography |
title_fullStr | Empirical retinal venous pulse wave velocity using modified photoplethysmography |
title_full_unstemmed | Empirical retinal venous pulse wave velocity using modified photoplethysmography |
title_short | Empirical retinal venous pulse wave velocity using modified photoplethysmography |
title_sort | empirical retinal venous pulse wave velocity using modified photoplethysmography |
topic | Research Note |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10082983/ https://www.ncbi.nlm.nih.gov/pubmed/37031176 http://dx.doi.org/10.1186/s13104-023-06309-y |
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