Method, apparatus, and system to identify branches of a blood vessel
AssigneeLightLab Imaging, Inc.
InventorAjay Gopinath
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Abstract
In part, the disclosure relates to an automated method of branch detection with regard to a blood vessel imaged using an intravascular modality such as OCT, IVUS, or other imaging modalities. In one embodiment, a representation of A-lines and frames generated using an intravascular imaging system is used to identify candidate branches of a blood vessel. One or more operators such as filters can be applied to remove false positives associated with other detections.
Claims20
A method of detecting one or more branches of a blood vessel comprising storing one or more intravascular image datasets of the blood vessel, each intravascular dataset comprising a plurality of A-lines;
- detecting a lumen boundary in a first A-line image generated from a set of A-lines from the plurality of A-lines, wherein the first A-line image has an r dimension and an A-line dimension;
- specifying a search distance T;
- defining a search region, the search region bounded by the detected lumen boundary and a boundary offset therefrom by distance T;
- detecting edges in the search region;
- and
- identifying candidate branching region in response to the detected edges.
Dependencies are inferred from the claim text.