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Conferences > ECBO > 2007 > RIII > 6627_47

Scattering optical coherence angiography with 1-µm swept source optical coherence tomography

Yoshiaki Yasuno, Youngjoo Hong, Shuichi Makita, Masahiro Akiba, Masahiro Miura, and Toyohiko Yatagai

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Abstract

Retinal and choroidal imaging by using swept-source optical coherence tomography (SS-OCT) with a 1-µm band probe light, and high-contrast and three-dimensional (3D) imaging of choroidal vasculature are presented. This SS-OCT has a measurement speed of 28,000 A-lines/s, a depth resolution of 10.4 µm in tissue, and a sensitivity of 99.3 dB. A software-based algorithm for scattering optical coherence angiography (S-OCA) is developed for the high-contrast and 3D imaging of the choroidal vessels. This OCT is employed for the investigation of age related macular degeneration and visualizes structures beneath the retinal pigment epithelial detachment.

© 2007 SPIE

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