Systems and methods for detecting electromechanical wave propagation within a body structure of a patient in a series of image frames representing movement the body structure are provided. Image data is acquired comprising a series of image frames corresponding to the movement of a body structure. A correlation calculation is performed on the image frames to generate a displacement map representing the relative displacement between the first and second image frames. A video is generated comprising a series of displacement maps. The parameters of movement of the body structure are detected by analysis of the displacement maps. The image acquisition can detect the movement of the body structure without inducing such movement.

A method of distributing data to a transducer array of an ultrasonic device, the transducer array including transduction elements arranged in module units, includes generating a data packet using an optical transceiver controlled by a controller, the data packet including activation instructions encoded in a first wavelength, transmitting the data packet from the controller to a target device via a signal in an optical fiber, the target device having a beam divider device, splitting the data signal, using the beam divider device, into a plurality of data streams, where each of the data streams carries the data packet in an identical phase, transmitting the data streams to the module units, and activating the transduction elements based on the received data streams.

A method for reconstructing a signal from a subset of the full signal is disclosed. In one embodiment, the method includes receiving a plurality of randomly sampled multichannel radio-frequency or in-phase and quadrature signals acquired from a physical environment including a transmitter, a propagation medium and a receiver; modelling the full signal as a matrix comprising a plurality of vector signals wherein the full signal is expressed as a matrix product of a first matrix and a second matrix; updating the second matrix based on an objective function to produce an updated second matrix; determining a convergence parameter in dependence upon the evaluated objective function; and modifying the updated second matrix in dependence upon the convergence parameter.

The present disclosure describes ultrasound imaging systems and methods configured to generate ultrasound images based on undersampled ultrasound data. The ultrasound images may be generated by applying a neural network trained with samples of known fully sampled data and undersampled data derived from the known fully sampled data to a acquired sparsely sampled data. The training of the neural network may involve training adversarial generative network including a generator and a discriminator. The generator is trained with sets of known undersampled data until the generator is capable of generating estimated image data, which the classifier is incapable of differentiation as either real or fake, and the trained generator may then be applied to unknown undersampled data.

A method for reconstructing a signal from a subset of the full signal is disclosed. In one embodiment, the method includes receiving a plurality of randomly sampled multichannel radio-frequency or in-phase and quadrature signals acquired from a physical environment including a transmitter, a propagation medium and a receiver; modelling the full signal as a matrix comprising a plurality of vector signals, wherein the full signal is expressed as a matrix product of a first matrix and a second matrix; updating the second matrix based on an objective function to produce an updated second matrix; determining a convergence parameter in dependence upon the evaluated objective function; and modifying the updated second matrix in dependence upon the convergence parameter.

The disclosed technology relates to imaging catheters. A method is provided that includes: receiving, from a plurality of transducers disposed on a catheter probe, a corresponding plurality of analog signals; selectively sampling the plurality of analog signals; multiplexing to produce a sequence of samples; and transmitting the sequence of samples to a receiver circuit. The receiver circuit includes a clock; an analog to digital converter (ADC) in communication with the clock; and a sampling phase correction circuit in communication with the clock and the ADC. The method further includes: determining optimum sampling times based on measured signal delays associated with the system; adjusting a phase of the clock based on the measured signal delays; and communicating the phase-adjusted clock to the transmitter circuit for the selective sampling of the analog signals. Certain embodiments of the disclosed technology may further be utilized in conjunction with beamforming.

Ultrasound signal processing device including: transmitter performing transmission events while varying a focal point; receiver generating, for each transmission event, receive signal sequences for transducer elements; delay-and-sum calculator generating, for each transmission event, a sub-frame acoustic line signal including an acoustic line signal for each measurement point located on target lines passing through the focal point and composing a target line group; and synthesizer combining sub-frame acoustic line signals to generate a frame acoustic line signal. The target lines are straight lines, and any measurement point, on any target line, that is spaced away from the focal point by a predetermined distance or more satisfies a condition that distance between the measurement point and a most nearby measurement point on the same target line is smaller than distance between the measurement point and a most nearby one among measurement points on an adjacent target line.

Disclosed herein are an ultrasound imaging apparatus and a control method thereof. The ultrasound imaging apparatus includes: a display unit configured to display an ultrasound image and an external image such that a first reference line overlaps the ultrasound image and a second reference line overlaps the external image; an ultrasound probe configured to receive a command for moving or rotating at least one image of the ultrasound image and the external image based on a predetermined reference coordinate system; and a controller configured to determine whether the ultrasound image matches with the external image according to manipulation of the ultrasound probe, and to control the display unit to synthesize the ultrasound image with the external image and to display the ultrasound image and the external image, if determining that the ultrasound image matches with the external image.

An ultrasonic apparatus including a plurality of channels, each includes a transmission channel configured to generate and output a transmission signal based on a synchronization signal; a transducer element configured to convert the transmission signal output from the transmission channel into an ultrasonic signal and output the ultrasonic signal; a transceiver switching circuit configured to attenuate and output the transmission signal output from the transmission channel, and to output a reception signal that returns after the ultrasonic signal is transmitted to an object and is reflected from the object; and a reception channel configured to receive the attenuated output transmission signal and the output reception signal, and to detect transmission waveform information based on the attenuated transmission signal. The ultrasonic apparatus may further include a controller configured to store reference waveform information according to a transmission condition, and to compare the detected transmission waveform information with the reference waveform information.

An ultrasonic diagnostic imaging system is gated to acquire images at different phases of a physiological cycle such as the heartbeat. At each successive heart cycle a trigger actuates the acquisition of a continuous sequence of images, starting at a particular phase of the heart cycle and ending when the next heart cycle begins. Multiple triggers are used, each starting at a different phase of the heart cycle and each acquiring images at uniform temporal spacing. After the first trigger is used a sequence of images has been captured which are temporally evenly spaced over the heart cycle, and as successive triggers are used uniform temporal spacing is maintained as the heart cycle is filled in with additional images for replay of an image loop of phase re-ordered images at a high frame rate of display.