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1. (WO2018162690) METHOD FOR ANALYZING AVASCULAR REGIONS IN OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY IMAGES

Pub. No.:    WO/2018/162690    International Application No.:    PCT/EP2018/055849
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Fri Mar 09 00:59:59 CET 2018
IPC: A61B 3/10
G06T 7/00
Applicants: CARL ZEISS MEDITEC, INC.
CARL ZEISS MEDITEC AG
Inventors: AN, Lin
DURBIN, Mary
VYAS, Ruchi
FARD, Ali
BHATTACHARYA, Arindam
SHEMONSKI, Nathan, D.
Title: METHOD FOR ANALYZING AVASCULAR REGIONS IN OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY IMAGES
Abstract:
Eye-related pathologies are diagnosed, or monitored, by useof optical coherence tomography angiography (OCTA) images. Avascular regions in the OCTA image are identified and optionally labeled as test or nonessential for particular applications. Nonessential avascular regions may correspond to avascular regions similar to those typicallyfound in healthy eyes or to low quality regions of the OCTAimage. Nonessential avascular regions may be removed, and the remaining avascular regions may be designated test avascular regions and submitted for analysis, e.g., by calculating anavascular index of the test avascular regions or by comparing the test avascular regions to a database of healthy and/or diseased avascular regions, or by usinga neural network trained on the database. Fig. 2