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US 2014/0152957 A1Published application
Optic neuropathy detection with three-dimensional optical coherence tomography
AssigneeTopcon Corporation
InventorsCharles A. Reisman, Qi Yang
Life of this patent
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Abstract
Based on optical coherence tomography (OCT) imaging of a portion of an eye, a mask of an anatomical feature is derived. Using the mask as a reference, a scan path is determined that is at least partially fitted to and/or partially enclosing the mask. OCT scan data corresponding to the scan path is acquired and analyzed to detect optic neuropathies.
Claims32
A method for optical coherence tomography (OCT) imaging, comprising:
- obtaining imaging data of a region of interest of a subject, the region of interest including at least one anatomical marker;
- generating a mask of the anatomical marker based on the imaging data;
- determining a scan path based at least in part on the mask, the scan path traversing at least a portion of an arbitrary enclosing shape at least partially fitted around the mask;
- and
- acquiring three-dimensional (3D) optical coherence tomography (OCT) scan data corresponding to the scan path.
2 more elements
A method for detecting optic neuropathies from OCT imaging data, comprising:
- acquiring imaging data of a region of a retina that includes an optic disc;
- determining an optic disc mask based on the imaging data;
- determining a scan path based at least in part on the optic disc mask, wherein the scan path comprises one or more sub-paths, the one or more sub-paths being positioned based in part on an outer dimension of the optic disc mask;
- and
- acquiring 3D OCT scan data corresponding to the scan path.
2 more elements
An OCT imaging system, comprising:
- an imaging apparatus for capturing OCT scan data of a region of interest of a subject, the region of interest including at least one anatomical marker;
- a neuropathy analysis apparatus for processing the OCT scan data to output analysis results relevant to diagnosis of optic neuropathies,
- wherein the neuropathy analysis apparatus is configured to:
- generate a mask for the anatomical marker based on image processing of the OCT scan data,
- determine a scan path based at least in part on the mask, the scan path traversing at least a portion of an arbitrary enclosing shape at least partially fitted around the mask,
- extract portions of the OCT scan data corresponding to the scan path,
- aggregate measurement values, relative to at least one characteristic of the region of interest, over the portions of the OCT scan data extracted, and
- output, as the analysis results, information derived from at least one of the measurement values aggregated or the portions of the OCT scan data extracted.
5 more elements
Dependencies are inferred from the claim text.