Characterizing Flow and Structure of Diabetic Retinal Neovascularization after Intravitreal Anti-VEGF Using Optical Coherence Tomography Angiography: A Pilot Study

Figure 1

Summary of image processing steps. The first column shows the images generated by the optical coherence tomography angiography; a B-scan structure image with flow overlay in red (a), an en face flow (angio) image (d), and an en face structural (structure) image (g). Borders of the neovascularization were manually delineated for each image (second column: (b, e, h)), and the areas were measured. After binarization of the flow information, flow density was measured in percentages of white pixels within the respective area (last column: (c, f, i)).

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