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    Line-Scanning optical coherence tomography system for in-vivo, non-invasive imaging of the cellular structure and blood perfusion of biological tissue

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    biology diabetic retinopathy diagnostics glaucoma grand challenge imaging in-vivo macular degeneration oct optical coherence tomography optometry sensing tissue

    Summary 

    Optical coherence tomography (OCT) is an optical imaging method that allows for in-vivo, non-invasive imaging of the structure and vasculature of biological tissue. Commercially available, clinical OCT systems utilize point-scanning method to acquire volumetric images over a large surface with typical frame rates of ~ 30 frames/ second. Since living biological tissue is constantly moving due to breathing, heart rate, muscle twitch, etc., OCT images acquired with the point-scanning method are compromised by motion-related image artefacts. In this project, we propose to build an ultra-fast OCT system based on a line-scanning method, capable of resolving this issue. By combining high resolution (<2-micron) with high imaging speed (2,500 frames / second), the line-scanning OCT technology will be able to generate in-vivo and non-invasively volumetric images of biological tissue down to the sub-cellular level; map in 3D the blood vasculature and measure precisely the blood flow; and measure the functional response of neural tissues to external stimuli. We plan to use the new OCT system to image the healthy and pathological human cornea and limbus, with the ultimate the goal of improving early diagnostics and monitoring of the effectiveness of treatment of potentially blinding corneal and limbal diseases.

    Principal Investigator (PI) or Team Coordinator

    Kostadinka Bizheva

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