In accordance with one aspect of the present disclosure, an ultrasound imaging apparatus comprising: an ultrasonic probe for transmitting ultrasonic waves to a target object and receiving ultrasonic waves reflected from the object; a beamforming unit for beamforming the received ultrasonic wave and outputting a beamforming signal; a sampling unit for adjusting the number of sampling times of the beamforming signal according to the amount of motion of the object; and an image processing unit for matching and synthesizing the sampled signals.

The present embodiments relate generally to ultrasound imaging methods and apparatus that allow for multiple modes of imaging using a single ultrasound transducer having a plurality of transducer elements. In an embodiment, there is provided an ultrasound imaging machine that is: operable in a first imaging mode in which the plurality of transducer elements are activated; and operable in a second imaging mode different from the first imaging mode, and in the second imaging mode, a subset of the plurality of transducer elements are activated so that ultrasound signals are steered from the subset of the plurality of transducer elements, where any remaining transducer elements of the plurality of transducer elements not part of the subset are inactive when operating in the second imaging mode.

An imaging device includes a two dimensional array of piezoelectric elements. Each piezoelectric element includes: a piezoelectric layer; a bottom electrode disposed on a bottom side of the piezoelectric layer and configured to receive a transmit signal during a transmit mode and develop an electrical charge during a receive mode; and a first top electrode disposed on a top side of the piezoelectric layer; and a first conductor, wherein the first top electrodes of a portion of the piezoelectric elements in a first column of the two dimensional array are electrically coupled to the first conductor.

Aspects of the present disclosure provide ultrasound systems and devices that provide for reduction of reverberation artifacts in ultrasound images by automatically changing imaging settings such as PRI or transmit/receive configuration based on detected amounts of reverberation in ultrasound images. In an exemplary embodiment, an apparatus includes a processor circuit in communication with an ultrasound probe. The processor circuit obtains a plurality of ultrasound images obtained using a plurality of different PRIs and/or pulse sequences, calculates an amount of reverberation artifacts in each of the plurality of ultrasound images, selects a pulse repetition interval and/or pulse sequence based on the amounts of reverberation artifacts in each of the plurality of ultrasound images, and controls the ultrasound transducer to obtain a reduced-reverberation ultrasound image using the selected pulse repetition interval or pulse sequence. The reduced-reverberation ultrasound image is then output to a display.

An ultrasound diagnostic apparatus according to an embodiment includes an ultrasound probe, and processing circuitry. The ultrasound probe performs transmission of ultrasonic pulses of different polarities to different transmission positions of a subject for multiple times. The processing circuitry performs, for each of the different polarities, reception beam-forming processing with respect to plural reception signals acquired by transmission of plural ultrasonic pulses of an identical polarity. The processing circuitry extracts a non-linear signal by adding up reception signals of the different polarities at an identical reception position, the signals subjected to reception beam forming.

A multipulse elastography method for the quantitative measurement of at least one mechanical property of a viscoelastic medium having an ultrasonic signal after ultrasonic illumination, the method including defining characteristics of at least two mechanical pulses; generating the at least two mechanical pulses for which characteristics are defined in a viscoelastic medium; monitoring a propagation of at least two shear waves generated by the at least two mechanical pulses using acquisition and emission of ultrasonic signals, in the viscoelastic medium, and calculating at least one mechanical property of said viscoelastic medium using said acquisitions of said ultrasonic signals.

Disclosed are systems and techniques for extended reality optimizations using radio frequency (RF) sensing. An example method can include obtaining RF sensing data; determining, based on the RF sensing data, reflected paths of one or more reflected RF signals, each reflected RF signal including a reflection of a transmitted signal from one or more objects in physical space; comparing the one or more reflected paths, to a field-of-view (FOV) of an image sensor of the device; and based on the comparison, triggering an action by the device and/or the image sensor.

An ultrasound imaging system probe comprises an imaging transducer head and a reception circuit for processing received reflected ultrasound signals. The reception circuit comprises an analogue to digital sigma delta converter which comprises a closed loop which comprises a tunable band pass filter. This enables the analog to digital converter to process only the desired frequency band. The ADC conversion bandwidth and ENOB are in this way programmable giving a more efficient probe design, and also enabling analog to digital conversion early in the signal processing chain.

Methods and systems are provided for color flow ultrasound imaging. In one embodiment, a method comprises acquiring color flow data, detecting, with a neural network, a flash artifact in the color flow data, adjusting an adaptive filter cutoff of a clutter filter based on a classification result of the neural network, filtering, with the clutter filter, the flash artifact from the color flow data, and displaying a color flow image generated from the filtered color flow data. In this way, strong flash artifacts caused by strong tissue movement or probe movement may be dynamically suppressed during color flow ultrasound imaging.

Examples of the present subject matter provide techniques for compressive sampling of acoustic data. A probe may sample in a compression mode, such that the entire matrix is not sampled at full-time resolution or spatial resolution. Therefore, the initial amount of data captured by the probe is reduced, allowing for lower density hardware (e.g., fewer analog-to-digital conversion channels or related analog front-end hardware) to be used at a lower data rate.