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Article Abstract
Axial velocity gradient (AVG) in the optical coherence tomography angiography (OCTA) signal affects measurement accuracy when the flow is not perpendicular to the scanning beam. We developed a dual beam OCTA method to decouple the contribution of AVG from the decorrelation signal. Decoupling is first verified by phantom experiments which reduces measurement uncertainty from 1.5 to 0.7% (standard deviation). We also tested the method in human skin in vivo and the results indicate that the contribution of AVG to decorrelation signal is reduced.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11341915 | PMC |
| http://dx.doi.org/10.1038/s41598-024-68924-4 | DOI Listing |
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