Methods and systems for photoacoustic computed tomography of blood flow
AssigneeCalifornia Institute of Technology
InventorsYang Zhang, Joshua Olick-Gibson, Lihong Wang
Life of this patent
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Abstract
Photoacoustic computed tomography of blood flow methods and systems that reconstruct photoacoustic images, use a spatiotemporal filter to extract at least one blood component from the images, and estimate blood flow measurements from the at least one blood component.
Claims17
A photoacoustic computed tomography method, comprising:
- reconstructing a sequence of photoacoustic images based on acoustic data detected by an ultrasonic transducer array;
- using a spatiotemporal filter to extract at least one blood component from each photoacoustic image;
- and
- estimating blood flow measurements from the at least one blood component.
A non-transitory computer readable media for generating one or more blood flow maps from acoustic data detected by an ultrasonic transducer array, the non-transitory computer readable media, when read by one or more processors, is configured to perform one or more operations comprising:
- reconstructing a sequence of photoacoustic images based acoustic data detected by the ultrasonic transducer array;
- using a spatiotemporal filter to extract at least one blood component from each photoacoustic image;
- and
- estimating blood flow measurements from the at least one blood component.
A photoacoustic computed tomography system, comprising:
- one or more light sources;
- an optical system for propagating light from the one or more light sources;
- an ultrasonic transducer array having an axis;
- and
- a computing system configured to execute instructions to:
- reconstruct a sequence of photoacoustic images based on acoustic data detected by the ultrasonic transducer array;
- use a spatiotemporal filter to extract at least one blood component from each photoacoustic image;
- and
- estimate blood flow measurements from the at least one blood component.
Dependencies are inferred from the claim text.