Patent · US Active

OCT-based retinal artery/vein classification

US12229947B2 · kind B2 · utility

0Cited by

12References

25Claims

0Family size

Assignee

Carl Zeiss Meditec AG · DE

Inventors

Kenneth Bailey Freund · New York, US
Xiaoyu Xu · Los Angeles, US
Mary K. Durbin · San Jose, US

Key dates

Filing date	May 28, 2020
Grant date	Feb 18, 2025
Priority date	—
Expiry date	May 28, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG06T2211/404
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An optical coherence tomography (OCT) unit provides a mechanism/method for automatic artery and vein identification. The method may be embodied by specialized algorithm or by a machine learning model, such as a support vector machine or neural network. The present method may identify a vascular configuration that forms a vortex structure in the deep capillary plexus (DCP) of an OCT-based (e.g., OCTA) image of a retina. The identified vortex may then be designated a vein, and other vascular structures from other plexuses, such as from the superficial vascular plexus (SVP), that connect to the identified vortex structure are likewise designated veins. Additional criteria, some based on the vein designations, may be used to identify arteries.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.