Increased crystalline lens coverage in optical coherence tomography with oblique scanning and volume stitching
Posted on 23.02.2021 - 14:55
A three-dimensional wide-angle optical coherence tomography (OCT) crystalline lens imaging method based on oblique scanning and image stitching is presented. This method was designed to enlarge OCT imaging volume of crystalline lens in vivo. A long-range sweptsource (SS)-OCT imaging system, which can measure the entire anterior segment of eye in a single acquisition, is used to record one central volume and 4 extra volumes with different oblique angles between OCT and pupil towards left, right, up and down. The volumes are then stitched automatically by software. To show its effectiveness and verify its validity, we scanned the subjects before and after taking dilation drops and compared the experimental results. Flythrough cross-sectional movies of a wide-angle volume fused by center, left, right, up and down volumes are also presented to show the performance of our method. As a result of manual image segmentation, our method can provide around 17% extra imaging volume compared with a regular imaging procedure.
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Chen, Yiwei; manzanera, silvestre; Mompean, Juan; Ruminski, Daniel; Grulkowski, Ireneusz; Artal, Pablo (2021): Increased crystalline lens coverage in optical coherence tomography with oblique scanning and volume stitching. The Optical Society. Collection. https://doi.org/10.6084/m9.figshare.c.5244374.v1
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