ADVANCED PHASE ANALYSIS OF RETINAL VIDEOS USING ECG

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F24%3APU152714" target="_blank" >RIV/00216305:26220/24:PU152714 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
ADVANCED PHASE ANALYSIS OF RETINAL VIDEOS USING ECG
Original language description
Spectral analysis is one way to further explore retinal hemodynamics and vascular pulsation. Specifically, for the phase component of the spectrum of retinal videos, the importance in retinal analysis is not yet fully defined. In this work we review original research for advanced spectral phase analysis of retinal videos from healthy subjects. And the aim of the study is to find out whether the phase value has significance in the classification of blood vessels (arteries and veins). Using the electrocardiographic signals that were simultaneously recorded, we perform normalization according to each cardiac cycle. We measured the left eye of 13 healthy subjects and investigated whether spectral phase analysis is relevant within the cardiac cycle based on photoplethysmography. We found that the temporal difference between the maximum pulsation of arteries and veins in the optic nerve head tissue is on average 9% of the actual cardiac period. For our data set, this corresponds to an average time delay of
Czech name
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Czech description
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Project
<a href="/en/project/GA21-18578S" target="_blank" >GA21-18578S: Dual-wavelength functional retinal imaging and simultaneous biosignals acquisition for ocular blood circulation assessment</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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