METHODS AND SYSTEMS FOR COHERENCE IMAGING IN OBTAINING ULTRASOUND IMAGES

    公开(公告)号:WO2022225844A1

    公开(公告)日:2022-10-27

    申请号:PCT/US2022/025207

    申请日:2022-04-18

    Abstract: A system for coherence imaging may receive ultrasound signals each having a respective delay associated with a respective ultrasonic transducer element in an ultrasonic transducer array. The system may obtain an approximation of the auto-correlation of ultrasound signals without any auto-correlation calculation, and determine the output image based on the approximation. In approximating the auto-correlation, the system may group the ultrasound signals into multiple portions, each corresponding to a respective sub-aperture of a plurality of sub-apertures of the ultrasonic transducer array. The system may determine a coherent sum of signals for each sub-aperture, perform a square operation or magnitude square operation over the coherent sum to obtain resulting data, normalize the resulting data, and sum the resulting data for all of the sub-apertures to generate the output image. A sub-aperture in the plurality of sub-apertures may overlap with another sub-aperture.

    SYSTEM AND METHOD FOR GRAPHICAL USER INTERFACE WITH FILTER FOR ULTRASOUND IMAGE PRESETS

    公开(公告)号:WO2023086618A1

    公开(公告)日:2023-05-19

    申请号:PCT/US2022/049792

    申请日:2022-11-14

    Abstract: A graphical user interface displayed by a processing device in operative communication with an ultrasound device may include a preset filter option that provides an easy way to switch between different presets which belong to a preset family. The user uses the preset filter feature to cycle through the different presets in the family while remaining on the same screen that is showing ultrasound images collected in real time. The imaging depth remains the same while the user is using the preset filter feature to select the preset within a family. Other settings such as time-gain compensation may not remain the same when cycling between presets. The preset filter feature allows a user to continuously view and assess the ultrasound images being collected in real time while cycling through the presets in the family.

    METHOD AND SYSTEM FOR ADJUSTING SCAN PATTERN FOR ULTRASOUND IMAGING

    公开(公告)号:WO2023086605A1

    公开(公告)日:2023-05-19

    申请号:PCT/US2022/049751

    申请日:2022-11-14

    Abstract: Disclosed herein are systems and methods for automatically updating scan patterns used during ultrasound imaging. A handheld ultrasound system may include an ultrasound device with a two-dimensional array of ultrasound transducers, and a smartphone or tablet that configures the ultrasound device to obtain a first ultrasound image frame using a scan pattern defining an acoustic beam. The system then updates the scan pattern to optimize a view of the desired anatomy. When the system is operating in cardiac imaging mode, the scan pattern may be updated by adjusting the azimuthal tilt and/or the elevational tilt of the acoustic beam. When the system is operating in lung imaging mode, the scan pattern may be updated by adjusting the elevational tilt and/or the translation of the aperture of the array of ultrasound transducers. The system then configures the ultrasound device to obtain a second ultrasound image frame using the updated scan pattern.

    METHODS AND APPARATUSES FOR BEAMFORMING IN ULTRASOUND SYSTEMS

    公开(公告)号:WO2021216723A1

    公开(公告)日:2021-10-28

    申请号:PCT/US2021/028417

    申请日:2021-04-21

    Abstract: Beamforming circuitry for an ultrasound device is disclosed, that may directly calculate the position in receive line space for an incoming ultrasound data sample given the time of flight (ToF) of that ultrasound data sample. In some embodiments, this may be done without initially buffering the ultrasound data sample received from the particular receive datapath multiplexed to the beamforming circuitry. The beamforming circuitry may then associate the ultrasound data sample with that position in receive line space, and in particular, with a memory address corresponding to that location. Thus, when the beamforming circuitry multiplexes between different receive datapaths, it may not need to buffer ultrasound data samples from different receive datapaths prior to saving the data to memory.

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