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US 10,499,813 B2Granted
Methods, systems and apparatus for temporal calibration of an intravascular imaging system
AssigneeLightLab Imaging, Inc.
InventorDesmond Adler
Life of this patent
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Abstract
In part, the disclosure relates to systems for imaging a blood vessel using intravascular image data and extravascular image data and methods to calibrate such systems. In one embodiment, multiple calibration trials are performed to determine a plurality of time lag values. A minimum time lag value is used to align intravascular image data and extravascular time lag data in one embodiment.
Claims12
A calibration system comprising:
- an optical coherence tomography (OCT) probe comprising a marker, wherein the probe is configured to collect OCT data, wherein the probe is disposed within an imaging zone of an angiography system;
- an optical coherence tomography data processing system comprising
- a computing device comprising a processor, the computing device programmed to generate frames of OCT images based upon received intravascular probe signals and to receive angiography data comprising angiography frames, the processor configured to cause the computing device to determine a minimum time delay between an initial OCT frame and an initial angiography frame from a set of time delays;
- and
- one or more memory devices in electrical communication with the computing device;
- and
- a controller programmed to initiate a plurality of pullbacks of the OCT probe, in response to a control signal, during which OCT data is collected, and transmit each pullback initiation time to the one or more memory devices.
4 more elements
Dependencies are inferred from the claim text.