Exact measurement of transverse flow velocity using few-mode optical coherence tomography

Raphaël Maltais-Tariant; Mathieu Dehaes; Caroline Boudoux

doi:10.1117/12.2652633

9 March 2023 Exact measurement of transverse flow velocity using few-mode optical coherence tomography

Raphaël Maltais-Tariant, Mathieu Dehaes, Caroline Boudoux

Proceedings Volume PC12367, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVII; PC123670G (2023) https://doi.org/10.1117/12.2652633
Event: SPIE BiOS, 2023, San Francisco, California, United States

Abstract

While Doppler OCT is effective at measuring axial velocities, OCT autocorrelation was introduced to measure flow in all directions. However, accuracy is limited as several factors other than particle velocity including diffusion, blood-cell tumbling, and axial velocity gradient affect signal decorrelation. Here, we show that the use of the ratio of autocorrelation from few-mode optical coherence tomography (FM-OCT) improves the accuracy of transverse flow velocity measurements. To validate our approach, we showed that milk velocity pumped through a circular tube at constant speed was accurately retrieved.

Conference Presentation

Citation Download Citation

Raphaël Maltais-Tariant, Mathieu Dehaes, and Caroline Boudoux "Exact measurement of transverse flow velocity using few-mode optical coherence tomography", Proc. SPIE PC12367, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVII, PC123670G (9 March 2023); https://doi.org/10.1117/12.2652633

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