Protocol of image analysis.
- Marco Nassisi (5979575)
- Elmira Baghdasaryan (5979578)
- Enrico Borrelli (750198)
- Michael Ip (6392399)
- Srinivas R. Sadda (520589)
Publication date
February 2019
DOI Publisher
Public Library of Science (PLoS)Abstract
The OCT fundus image (A) was used to assist manual delineation of the geographic atrophy (GA) region. The compensated choriocapillaris angiogram (B) was thresholded in order to obtain a binarized picture where the black pixels represent the signal voids in the choriocapillaris flow (C). The percentage of flow voids was calculated outside the atrophy (D), within two concentric 500 μm wide regions surrounding the GA (para-atrophy region (E) and peri-atrophy region (F).</p
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