Empirical retinal venous pulse wave velocity using modified photoplethysmography
Abstract 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 ophtha...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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BMC
2023-04-01
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| Series: | BMC Research Notes |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s13104-023-06309-y |
| _version_ | 1797850256276193280 |
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| author | Anmar Abdul-Rahman William Morgan Aleksandar Vukmirovic Andrew Mehnert Danail Obreschow Dao-Yi Yu |
| author_facet | Anmar Abdul-Rahman William Morgan Aleksandar Vukmirovic Andrew Mehnert Danail Obreschow Dao-Yi Yu |
| author_sort | Anmar Abdul-Rahman |
| collection | DOAJ |
| description | Abstract 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. |
| first_indexed | 2024-04-09T18:57:26Z |
| format | Article |
| id | doaj.art-bc6a0c34c9454a96acc569af6a96e09a |
| institution | Directory Open Access Journal |
| issn | 1756-0500 |
| language | English |
| last_indexed | 2024-04-09T18:57:26Z |
| publishDate | 2023-04-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Research Notes |
| spelling | doaj.art-bc6a0c34c9454a96acc569af6a96e09a2023-04-09T11:07:11ZengBMCBMC Research Notes1756-05002023-04-011611910.1186/s13104-023-06309-yEmpirical retinal venous pulse wave velocity using modified photoplethysmographyAnmar Abdul-Rahman0William Morgan1Aleksandar Vukmirovic2Andrew Mehnert3Danail Obreschow4Dao-Yi Yu5Department of Ophthalmology, Counties Manukau DHBCentre for Ophthalmology and Visual Science, The University of Western AustraliaCentre for Ophthalmology and Visual Science, The University of Western AustraliaCentre for Ophthalmology and Visual Science, The University of Western AustraliaInternational Centre for Radio Astronomy Research (ICRAR), University of Western AustraliaCentre for Ophthalmology and Visual Science, The University of Western AustraliaAbstract 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.https://doi.org/10.1186/s13104-023-06309-yOphthalmodynamometryRetinal venous pulseModified photoplethysmography |
| spellingShingle | Anmar Abdul-Rahman William Morgan Aleksandar Vukmirovic Andrew Mehnert Danail Obreschow Dao-Yi Yu Empirical retinal venous pulse wave velocity using modified photoplethysmography BMC Research Notes Ophthalmodynamometry Retinal venous pulse 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 | Ophthalmodynamometry Retinal venous pulse Modified photoplethysmography |
| url | https://doi.org/10.1186/s13104-023-06309-y |
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