Acquisition and analysis techniques for improved outcomes in optical coherence tomography angiography
US10238284B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2017 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Jun 21, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30041
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods for improved acquisition and processing of optical coherence tomography (OCT) angiography data are presented. One embodiment involves improving the acquisition of the data by evaluating the quality of different portions of the data to identify sections having non-uniform acquisition parameters or non-uniformities due to opacities in the eye such as floaters. The identified sections can then be brought to the attention of the user or automatically reacquired. In another embodiment, segmentation of layers in the retina includes both structural and flow information derived from motion contrast processing. In a further embodiment, the health of the eye is evaluating by comparing a metric reflecting the density of vessels at a particular location in the eye determined by OCT angiography to a database of values calculated on normal eyes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.