Attenuation-based optic neuropathy detection with three-dimensional optical coherence tomography

Patent metadata

Field	Value
Publication number	US-9517005-B2
Application number	US-201514825286-A
Country	US
Kind code	B2
Filing date	Aug 13, 2015
Priority date	Feb 1, 2013
Publication date	Dec 13, 2016
Grant date	Dec 13, 2016

Abstract

Optical coherence tomography (OCT) scan data of a subject is acquired over a region of interest which can include an optic disc or a macula of a retina. Layer boundaries of retinal layers are identified in the OCT scan data to facilitate measurements. In one aspect, a measurement related to ratio value between a total backscattered signal intensity of one or more target layers of the retina and a total backscattered signal intensity of one or more reference layers is computed on a location-by-location basis within a region of interest of the OCT scan data. Measurements can be collected, aggregated, analyzed, and displayed in connection with other information taken or derived from the OCT scan data.

First claim

What is claimed is:

1. A method for detecting and monitoring diseases, comprising:
obtaining imaging data of a region of the retina;
identifying boundaries between layers of the retina in the region of the retina, based on the imaging data; and
determining, on a location-by-location basis for at least a portion of the region of the retina, a measurement value related to a ratio value between a total backscattered signal intensity of one or more target layers of the retina and…

Assignees

• Kk Topcon

Inventors

• Reisman Charles A

Classifications

• G06T2207/30041

  Physics · mapped topic

• A61B3/0058

  Human Necessities · mapped topic

• A61B3/14

  Human Necessities · mapped topic

• G06T2207/10101

  Physics · mapped topic

• A61B3/1225

  Human Necessities · mapped topic