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KOLÁŘ, R. VIČAR, T. CHMELÍK, J. JAKUBÍČEK, R. ODSTRČILÍK, J. VALTEROVÁ, E. NOHEL, M. SKORKOVSKÁ, K. TORNOW, R.
Original Title
Assessment of retinal vein pulsation through video-ophthalmoscopy and simultaneous biosignals acquisition
Type
journal article in Web of Science
Language
English
Original Abstract
The phenomenon of retinal vein pulsation is still not a deeply understood topic in retinal hemodynamics. In this paper, we present a novel hardware solution for recording retinal video sequences and physiological signals using synchronized acquisition, we apply the photoplethysmographic principle for the semi-automatic processing of retinal video sequences and we analyse the timing of the vein collapse within the cardiac cycle using of an electrocardiographic signal (ECG). We measured the left eyes of healthy subjects and determined the phases of vein collapse within the cardiac cycle using a principle of photoplethysmography and a semi-automatic image processing approach. We found that the time to vein collapse (Tvc) is between 60 ms and 220 ms after the R-wave of the ECG signal, which corresponds to 6% to 28% of the cardiac cycle. We found no correlation between Tvc and the duration of the cardiac cycle and only a weak correlation between Tvc and age (0.37, p = 0.20), and Tvc and systolic blood pressure (-0.33, p = 0.25). The Tvc values are comparable to those of previously published papers and can contribute to the studies that analyze vein pulsations.
Keywords
vein pulsation; retina; video-ophtalmoscope; biosignals
Authors
KOLÁŘ, R.; VIČAR, T.; CHMELÍK, J.; JAKUBÍČEK, R.; ODSTRČILÍK, J.; VALTEROVÁ, E.; NOHEL, M.; SKORKOVSKÁ, K.; TORNOW, R.
Released
12. 5. 2023
Publisher
Optica Publishing Group
Location
Washington, DC, USA
ISBN
2156-7085
Periodical
Biomedical Optics Express
Year of study
14
Number
6
State
United States of America
Pages from
2645
Pages to
2657
Pages count
13
URL
https://opg.optica.org/boe/fulltext.cfm?uri=boe-14-6-2645&id=530619
Full text in the Digital Library
http://hdl.handle.net/11012/209567
BibTex
@article{BUT183522, author="Radim {Kolář} and Tomáš {Vičar} and Jiří {Chmelík} and Roman {Jakubíček} and Jan {Odstrčilík} and Eva {Orságová} and Michal {Nohel} and Karolína {Skorkovská} and Ralf-Peter {Tornow}", title="Assessment of retinal vein pulsation through video-ophthalmoscopy and simultaneous biosignals acquisition", journal="Biomedical Optics Express", year="2023", volume="14", number="6", pages="2645--2657", doi="10.1364/BOE.486052", issn="2156-7085", url="https://opg.optica.org/boe/fulltext.cfm?uri=boe-14-6-2645&id=530619" }