28 February 2014 Improved in vivo imaging of human blood circulation in the chorioretinal complex using phase variance method with new phase stabilized 1 μm swept-source optical coherence tomography (pv-SSOCT)
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Proceedings Volume 8930, Ophthalmic Technologies XXIV; 89300X (2014) https://doi.org/10.1117/12.2040186
Event: SPIE BiOS, 2014, San Francisco, California, United States
Abstract
We demonstrate the feasibility of our newly developed phase stabilized high-speed (100 kHz A-scans/s) 1 μm sweptsource optical coherence tomography (SSOCT) system with the phase-variance based motion contrast method for visualization of human chorioretinal complex microcirculation. Compared to our previously reported spectral domain (spectrometer based) phase-variance (pv)-SDOCT system it has advantages of higher sensitivity, reduced fringe washout for high blood flow speeds and deeper penetration in choroid. High phase stability SSOCT imaging was achieved by using a computationally efficient phase stabilization approach. This process does not require additional calibration hardware and complex numerical procedures. Our phase stabilization method is simple and can be employed in a variety of SS-OCT systems. Examples of vasculature in the chorioretinal complex imaged by pv-SSOCT is presented and compared to retinal images of the same volunteers acquired with fluorescein angiography (FA) and indocyanine green angiography (ICGA).
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Raju Poddar, Raju Poddar, Dae Yu Kim, Dae Yu Kim, John S. Werner, John S. Werner, Robert J. Zawadzki, Robert J. Zawadzki, } "Improved in vivo imaging of human blood circulation in the chorioretinal complex using phase variance method with new phase stabilized 1 μm swept-source optical coherence tomography (pv-SSOCT)", Proc. SPIE 8930, Ophthalmic Technologies XXIV, 89300X (28 February 2014); doi: 10.1117/12.2040186; https://doi.org/10.1117/12.2040186
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