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US 12,616,377 B2Granted
Transponder tracking and ultrasound image enhancement
AssigneeDeepSight Technology, Inc.
InventorsJiangang Zhu, Mucong Li, Linhua Xu, Michael Hazarian
Life of this patent
Estimating the term…
Abstract
A transponder is used for tracking a position of a distal end of a medical device in an ultrasound image and/or enhancing an ultrasound image.
Claims24
A method comprising:
- providing a tracking and imaging system comprising (i) an optical sensor coupled to a medical device, (ii) an ultrasound transducer array, and (iii) a processor;
- detecting, by the optical sensor through a photo-elastic effect or physical deformation, a plurality of acoustic signals from any direction, the optical sensor comprising a point sensor for receiving the plurality of acoustic signals from any direction, the plurality of acoustic signals corresponding to one or more of direct acoustic pulses emitted from the ultrasound transducer array, scattered acoustic signals, and acoustic tissue harmonics, the plurality of acoustic signals causing a spectral shift or polarization change in light guided in the optical sensor;
- ascertaining, by the processor, a location of the optical sensor based on one or more of the plurality of acoustic signals using coherent image forming, the coherent image forming comprising:
- determining a pixel value for a corresponding pixel in an imaging plane based on the plurality of acoustic signals assuming the optical sensor is located at the corresponding pixel to obtain a coherent signal image;
- and
- extracting the location of the optical sensor from the coherent signal image;
- and
- generating, by the processor, an ultrasound image based on acoustic echo signals detected by the ultrasound transducer array and the plurality of acoustic signals detected by the optical sensor.
5 more elements
A system comprising:
- an optical sensor coupled to a medical device and configured to detect, through a photo-elastic effect or physical deformation, a plurality of acoustic signals from any direction, the optical sensor comprising a point optical sensor for receiving the plurality of acoustic signals from any direction, the plurality of acoustic signals corresponding to one or more of direct acoustic pulses emitted from an ultrasound transducer array, scattered acoustic signals, and acoustic tissue harmonics, the detected plurality of acoustic signals causing a spectral shift or a polarization change in light guided in the optical sensor;
- and
- a processor configured to:
- ascertain a location of the optical sensor based on at least some of the plurality of acoustic signals using coherent image forming, the coherent image forming comprising:
- determining a pixel value for a corresponding pixel in an imaging plane based on the plurality of acoustic signals assuming the optical sensor is located at the corresponding pixel to obtain a coherent signal image;
- and
- extracting the location of the optical sensor from the coherent signal image;
- and
- generate an ultrasound image based on acoustic echo signals detected by the ultrasound transducer array and the plurality of acoustic signals detected by the optical sensor.
6 more elements
A method comprising:
- providing a tracking and imaging system comprising (i) an optical sensor coupled to a medical device, (ii) an ultrasound transducer array, and (iii) a processor;
- detecting, by the optical sensor through a photo-elastic effect or physical deformation, a plurality of acoustic signals across a 3D directional range of up to 360 degrees, the optical sensor configured to receive the plurality of acoustic signals across the 3D directional range of up to 360 degrees, the optical sensor comprising a point-like optical sensor, each of the plurality of acoustic signals corresponding to one of a plurality of acoustic pulses emitted from the ultrasound transducer array, the plurality of acoustic signals causing a spectral shift or polarization change in light guided in the optical sensor;
- ascertaining, by the processor, a location of the optical sensor based on one or more of the plurality of acoustic signals by coherent image forming, the coherent image forming comprises:
- determining a pixel value for a corresponding pixel in an imaging plane based on the plurality of acoustic signals assuming the optical sensor is located at the corresponding pixel to obtain a coherent signal image;
- and
- extracting the location of the optical sensor from the coherent signal image;
- and
- generating, by the processor, an ultrasound image based on acoustic echo signals detected by the ultrasound transducer array.
5 more elements
Dependencies are inferred from the claim text.