oct file format is proprietary, it can easily be exported to and read by third-party software such as ImageJ (freeware Java version National Institutes of Health Bethesda, MD) and MATLAB (The MathWorks, Inc., Natick, MA) for postacquisition processing and analysis. The data can be exported in a raw format or as an. Unlike the lossy-compressed image output from some SD OCT systems, the Bioptigen system facilitates export and analysis of files by making the raw OCT data accessible to the user. The high-axial resolution has allowed our lab to study in-depth retinal and subretinal pathology that is more difficult to visualize on TD OCT. The imaging depth is about 2 mm, represented by 1024 pixels in each A-scan.
#Bioptigen sd oct upgrade#
(This is dependent on the optical properties of the eye being scanned.) A future plug-in upgrade will increase the bandwidth of the light source used for image acquisition and improve the axial resolution to less than 3 µm. The axial (anterior-posterior) resolution for the Bioptigen system is 4.5 µm, and the lateral (nasal-temporal) resolution can be as little as 10 µm. Another feature of SD OCT is high resolution. This high speed allows high-resolution volumetric scanning across most of the macula and reduces the incidence of motion artifact compared to TD OCT. The Bioptigen system can acquire, process, and display 17,000 A-scans per second. Image acquisition speed sets all SD OCT systems apart from time-domain (TD) OCT. In this article, we will review the system and describe how we have put this technology to use. The Bioptigen system has several features that we have taken advantage of in both research and clinical endeavors. We have had the opportunity to use the Bioptigen (Bioptigen, Inc., Research Triangle Park, NC) spectral-domain (SD) optical coherence tomography (OCT) system extensively at the Duke Advanced Research in SD OCT Imaging (DARSI) laboratory in the Duke University Eye Center.
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