Optical coherence tomography assessment of choroidal blood flow enabled by dynamic forward scattering

Ahhyun Stephanie Nam; Boy Braaf; Benjamin J. Vakoc

doi:10.1117/12.2609191

7 March 2022 Optical coherence tomography assessment of choroidal blood flow enabled by dynamic forward scattering

Ahhyun Stephanie Nam, Boy Braaf, Benjamin J. Vakoc

Proceedings Volume PC11941, Ophthalmic Technologies XXXII; PC1194114 (2022) https://doi.org/10.1117/12.2609191
Event: SPIE BiOS, 2022, San Francisco, California, United States

Abstract

The study of choroidal blood flow is severely limited by the deficiencies of existing flow imaging methods. We introduce a new framework and acquisition protocol for optical coherence tomography (OCT) flowmetry in the choroid. Our approach quantifies choroidal flow by applying a robust mathematical analysis to signals that are dynamically forward scattered (DFS) by choroidal vessels and reflected from static scatterers in the sclera. This DFS approach provides robust and quantitative flow measurements that are immune to angle and gradient artifacts. We further demonstrate a visualization of flow mapping in a healthy human eye.

Conference Presentation

Citation Download Citation

Ahhyun Stephanie Nam, Boy Braaf, and Benjamin J. Vakoc "Optical coherence tomography assessment of choroidal blood flow enabled by dynamic forward scattering", Proc. SPIE PC11941, Ophthalmic Technologies XXXII, PC1194114 (7 March 2022); https://doi.org/10.1117/12.2609191

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