Retinal arterial blood flow measured by real-time Doppler holography at 33,000 frames per second
Résumé
This study presents a novel quantitative estimation method for total retinal arterial blood flow utilizing real-time Doppler holography at an unprecedented frame rate of 33,000 frames per second. This technique, leveraging high-speed digital holography, enables non-invasive angiographic imaging of the retina, providing detailed blood flow contrasts essential for assessing retinal health. The proposed quantitative analysis method consists of segmenting primary in-plane retinal arteries and calculating local blood velocity using Doppler frequency broadening. The analysis integrates a forward scattering model to achieve blood flow estimation. Our findings highlight the potential of Doppler holography as a powerful tool for diagnosing and monitoring the treatment of retinal vascular conditions, complementary to existing imaging methods.
Mots clés
Doppler holography angiography quantitative assessment retinal blood flow vascular health. I
Doppler holography
angiography
quantitative assessment
retinal blood flow
vascular health. I
Image and Video Processing (eess.IV)
Applied Physics (physics.app-ph)
Instrumentation and Detectors (physics.ins-det)
Medical Physics (physics.med-ph)
Optics (physics.optics)
FOS: Electrical engineering
electronic engineering
information engineering
FOS: Physical sciences
I.4.5
I.3.3
J.3
Domaines
Physique [physics]| Origine | Fichiers éditeurs autorisés sur une archive ouverte |
|---|---|
| Licence |
Domaine public
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