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18 June 2013 Segmentation of the macular choroid in OCT images acquired at 830nm and 1060nm
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Retinal imaging with optical coherence tomography (OCT) has rapidly advanced in ophthalmic applications with the broad availability of Fourier domain (FD) technology in commercial systems. The high sensitivity afforded by FD-OCT has enabled imaging of the choroid, a layer of blood vessels serving the outer retina. Improved visualization of the choroid and the choroid-sclera boundary has been investigated using techniques such as enhanced depth imaging (EDI), and also with OCT systems operating in the 1060-nm wavelength range. We report on a comparison of imaging the macular choroid with commercial and prototype OCT systems, and present automated 3D segmentation of the choroid-scleral layer using a graph cut algorithm. The thickness of the choroid is an important measurement to investigate for possible correlation with severity, or possibly early diagnosis, of diseases such as age-related macular degeneration.
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Sieun Lee, Mirza Faisal Beg, and Marinko V. Sarunic "Segmentation of the macular choroid in OCT images acquired at 830nm and 1060nm", Proc. SPIE 8802, Optical Coherence Tomography and Coherence Techniques VI, 88020J (18 June 2013); doi: 10.1117/12.2032603;

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