In an embodiment of the subject matter described herein a system is provided. The system includes a portable host system having one or more processors and a memory for storing a plurality of applications. The one or more processors configured to execute programmed instructions of a select application by performing one or more operations, which include obtain a set of frames of 2D ultrasound images, develop a prospect model indicating a likelihood that frames within the set include an organ of interest (OOI), identify primary and secondary reference frames from the set of the frames based on the prospect model, determine a characteristic of interest in the primary reference frame, select a candidate shape for the OOI based on the character of interest in the primary reference frame, and adjust the candidate shape based on the secondary reference frames to form a resultant shape for the OOI.

Described herein is an implantable device having a sensor configured to detect an amount of an analyte, a pH, a temperature, strain, or a pressure; and an ultrasonic transducer with a length of about 5 mm or less in the longest dimension, configured to receive current modulated based on the analyte amount, the pH, the temperature, or the pressure detected by the sensor, and emit an ultrasonic backscatter based on the received current. The implantable device can be implanted in a subject, such as an animal or a plant. Also described herein are systems including one or more implantable devices and an interrogator comprising one or more ultrasonic transducers configured to transmit ultrasonic waves to the one or more implantable devices or receive ultrasonic backscatter from the one or more implantable devices. Also described are methods of detecting an amount of an analyte, a pH, a temperature, a strain, or a pressure.

For sound speed imaging, different receive apertures are used instead of multiple transmissions from different angles. Acoustic echoes from a same transmission are receive beamformed with different apertures of the transducer array. The axial shift between the beamformed signals from the different apertures is used to solve for the speed of sound at one or more locations. The resulting measure of the speed of sound is displayed as the speed of sound in the tissue and may be diagnostically or prognostically useful.

A non-transitory storage medium storing a computer-readable diagnostic program that causes a computer to execute outputting that is outputting a first inference result from third ultrasonic image data before processing including coordinate transformation based on a reception signal for image generation received by an ultrasonic probe by using a learning model. The learning model is machine-learned using learning data formed with a pair of: first ultrasonic image data based on a reception signal for image generation received by an ultrasonic probe; and second correct answer data obtained by performing inverse transformation of coordinate transformation on first correct answer data for second ultrasonic image data obtained by performing processing including coordinate transformation on the first ultrasonic image data.

A system and method include storage of an echo signal power spectrum of a reference phantom for a fundamental frequency band and an echo signal power spectrum of the reference phantom for a harmonic frequency band, acquisition of an echo signal power spectrum of a region of tissue for the fundamental frequency band and an echo signal power spectrum of the region of tissue for the harmonic frequency band, determination of a first backscatter coefficient based on the echo signal power spectrum of the region of tissue for the fundamental frequency band and the echo signal power spectrum of the reference phantom for the fundamental frequency band, determination of a second backscatter coefficient based on the echo signal power spectrum of the region of tissue for the harmonic frequency band and the echo signal power spectrum of the reference phantom for the harmonic frequency band, and determination of a non-linearity of the region of tissue based on the first backscatter coefficient and the second backscatter coefficient.

Described herein are implantable devices configured to emit an electrical pulse. An exemplary implantable device includes an ultrasonic transducer configured to receive ultrasonic waves that power the implantable device and encode a trigger signal; a first electrode and a second electrode configured to be in electrical communication with a tissue and emit an electrical pulse to the tissue in response to the trigger signal; and an integrated circuit comprising an energy storage circuit. Also described are systems that include one or more implantable device and an interrogator configured to operate the one or more implantable devices. Further described is a closed loop system that includes a first device configured to detect a signal, an interrogator configured to emit a trigger signal in response to the detected signal, and an implantable device configured to emit an electrical pulse in response to receiving the trigger signal. Further described are computer systems useful for operating one or more implantable devices, as well as methods of electrically stimulating a tissue.

Described herein are implantable devices configured to emit an electrical pulse. An exemplary implantable device includes an ultrasonic transducer configured to receive ultrasonic waves that power the implantable device and encode a trigger signal; a first electrode and a second electrode configured to be in electrical communication with a tissue and emit an electrical pulse to the tissue in response to the trigger signal; and an integrated circuit comprising an energy storage circuit. Also described are systems that include one or more implantable device and an interrogator configured to operate the one or more implantable devices. Further described is a closed loop system that includes a first device configured to detect a signal, an interrogator configured to emit a trigger signal in response to the detected signal, and an implantable device configured to emit an electrical pulse in response to receiving the trigger signal. Further described are computer systems useful for operating one or more implantable devices, as well as methods of electrically stimulating a tissue.

Embodiments of the present invention provide a device for obtaining information about one or more living beings. The device comprises an actuator, a sensor and an evaluator. The actuator is configured to output an excitation signal for exciting the living being(s). The sensor is configured to detect a signal generated by the living being(s) in reaction to the excitation signal, to obtain a detected signal. The evaluator is configured to evaluate the detected signal so as to obtain the information about the living being(s).

The object of the invention is a skeletal method utilizing electromagnetic waves to be utilized at least in one of skeletal actuation, skeletal detection and skeletal therapy. In the method is performed at least one of first and second method steps, where in the first method step is generated by means of electromagnetic waves at least one mechanical wave in at least one generation location into the skeleton through soft tissue. In the second method step is detected by means of electromagnetic waves skeletal vibrations due to at least one mechanical wave, is recorded the detected at least one mechanical wave in at least one recording location to form mechanical wave information, and distance of said at least one recording location from said at least one generation location is known, and further in the second method step is determined skeletal properties based on at least one recorded signal.

Described herein are implantable devices configured to emit an electrical pulse. An exemplary implantable device includes an ultrasonic transducer configured to receive ultrasonic waves that power the implantable device and encode a trigger signal; a first electrode and a second electrode configured to be in electrical communication with a tissue and emit an electrical pulse to the tissue in response to the trigger signal; and an integrated circuit comprising an energy storage circuit. Also described are systems that include one or more implantable device and an interrogator configured to operate the one or more implantable devices. Further described is a closed loop system that includes a first device configured to detect a signal, an interrogator configured to emit a trigger signal in response to the detected signal, and an implantable device configured to emit an electrical pulse in response to receiving the trigger signal. Further described are computer systems useful for operating one or more implantable devices, as well as methods of electrically stimulating a tissue.