Patent ID: 11937878
Assignee: OREGON HEALTH & SCIENCE UNIVERSITY
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 13:
14. A system for optical coherence tomography angiography (OCTA), the system comprising:
an optical coherence tomography (OCT) system;
a logic subsystem; and
a data holding subsystem comprising non-transitory machine-readable instructions stored thereon that are executable by the logic subsystem to:
obtain, via the OCT system, three or more OCT B-scans of a sample at each of a plurality of cross-sectional positions along a slow axis using a stepped scanning pattern on the slow axis, wherein to obtain the OCT B-scans includes to:
obtain a first OCT B-scan, a second OCT B-scan, and a third OCT B-scan at a first cross-sectional position of the cross-sectional positions, wherein a first time period between the first and second OCT B-scans is different than a second time period between the second and third OCT B-scans, and wherein a third time period between the first and third OCT B-scans is different than the first and second time periods; and
obtain, via the stepped scanning pattern on the slow axis, at least one of the OCT B-scans at one or more other cross-sectional positions of the plurality of cross-sectional positions in between the first and second OCT B-scans or second and third OCT B-scans at the first cross-sectional position;
generate multiple OCTA images based on the three or more OCT B-scans at each of the plurality of cross-sectional positions; and
combine the multiple OCTA images to obtain a high dynamic range (HDR) OCTA image.