Ultrahigh-speed imaging of the rat retina using ultrahigh-resolution spectral/Fourier domain OCT

Jonathan J. Liu; Benjamin Potsaid; Yueli Chen; Iwona Gorczynska; Vivek J. Srinivasan; Jay S. Duker; James G. Fujimoto

doi:10.1117/12.842540

2 March 2010 Ultrahigh-speed imaging of the rat retina using ultrahigh-resolution spectral/Fourier domain OCT

Jonathan J. Liu, Benjamin Potsaid, Yueli Chen, Iwona Gorczynska, Vivek J. Srinivasan, Jay S. Duker, James G. Fujimoto

Proceedings Volume 7550, Ophthalmic Technologies XX; 755017 (2010) https://doi.org/10.1117/12.842540
Event: SPIE BiOS, 2010, San Francisco, California, United States

Abstract

We performed OCT imaging of the rat retina at 70,000 axial scans per second with ~3 μm axial resolution. Three-dimensional OCT (3D-OCT) data sets of the rat retina were acquired. The high speed and high density data sets enable improved en face visualization by reducing eye motion artifacts and improve Doppler OCT measurements. Minimal motion artifacts were visible and the OCT fundus images offer more precise registration of individual OCT images to retinal fundus features. Projection OCT fundus images show features such as the nerve fiber layer, retinal capillary networks and choroidal vasculature. Doppler OCT images and quantitative measurements show pulsatility in retinal blood vessels. Doppler OCT provides noninvasive in vivo quantitative measurements of retinal blood flow properties and may benefit studies of diseases such as glaucoma and diabetic retinopathy. Ultrahigh speed imaging using ultrahigh resolution spectral / Fourier domain OCT promises to enable novel protocols for measuring small animal retinal structure and retinal blood flow. This non-invasive imaging technology is a promising tool for monitoring disease progression in rat and mouse models to assess ocular disease pathogenesis and response to treatment.

Citation Download Citation

Jonathan J. Liu, Benjamin Potsaid, Yueli Chen, Iwona Gorczynska, Vivek J. Srinivasan, Jay S. Duker, and James G. Fujimoto "Ultrahigh-speed imaging of the rat retina using ultrahigh-resolution spectral/Fourier domain OCT", Proc. SPIE 7550, Ophthalmic Technologies XX, 755017 (2 March 2010); https://doi.org/10.1117/12.842540

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KEYWORDS

Optical coherence tomography

Retina

Doppler effect

Image resolution

Blood circulation

Spectral resolution

Data acquisition

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