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Photonics Dictionary

optical coherence tomography angiography

Also known as OCT-A, optical coherence tomography angiography is an imaging technique that uses light waves to measure changes in the reflectance characteristics, enabling the the quantitative analysis of vasculature. Primarily used in ophthamology, OCT-A is a noninvasive alternative to dye-based techniques for blood vessel imaging, such as indocyanine-green angiography and fluorescein angiography.
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