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US 2024/0398374 A1Published application
Cross-ray ultrasound tomography (crust) methods and systems
AssigneeCalifornia Institute of Technology
InventorsLihong Wang, Shuai Na
Life of this patent
Estimating the term…
Abstract
Cross-ray ultrasound tomography systems and methods that employ an ultrasonic emitter and an ultrasonic detector array where the ultrasonic emitter is outside a plane at elements of the ultrasonic detector array, and ultrasonic wave(s) are emitted by the ultrasonic emitter at an angle to the plane at the elements of the ultrasonic detector array.
Claims20
1-5. (canceled)
A cross-ray ultrasound tomography system, comprising:
- an ultrasonic emitter configured to emit one or more ultrasonic waves;
- and
- an ultrasonic detector array configured to generate one or more radio frequency signals in response to detecting ultrasonic waves;
- wherein the ultrasonic emitter is outside of a plane at elements of the ultrasonic detector array and the ultrasonic emitter and the ultrasonic detector array are configured such that the one or more ultrasonic waves are emitted by the ultrasonic emitter at an angle to the plane at the elements of the ultrasonic detector array.
1 more element
A cross-ray ultrasound tomography method, comprising:
- causing one or more ultrasonic waves to be emitted by an ultrasonic emitter at an angle to a plane at elements of an ultrasonic detector array, wherein the ultrasonic emitter is outside of the plane at the elements of the ultrasonic detector array;
- and
- forming one or more tomographic images at least in part by calculating a scattering coefficient at each of a plurality of spatial coordinates using acoustic data, the acoustic data based at least in part on one or more radio frequency signals generated by the ultrasonic detector array.
A method for quantifying flow velocity, the method comprising:
- causing one or more ultrasonic waves to be emitted by an ultrasonic emitter at an angle to a plane at elements of an ultrasonic detector array, wherein the ultrasonic emitter and the ultrasonic detector array are configured such that the ultrasonic emitter is outside of the plane at the elements of the ultrasonic detector array;
- constructing a plurality of tomographic images based at least in part on one or more radio frequency signals generated by the ultrasonic detector array;
- clutter filtering the plurality of tomographic images;
- calculating amplitude and temporal frequency at each of a plurality of pixels of each frame in the clutter filtered plurality of tomographic images;
- and
- calculating a flow velocity vector at each of the plurality of pixels based at least in part on the amplitude and the temporal frequency calculated at each pixel of each frame in the clutter filtered plurality of tomographic images.
3 more elements
Dependencies are inferred from the claim text.