ELASTICITY IMAGING IN HIGH INTENSITY FOCUSED ULTRASOUND

    公开(公告)号:US20190000422A1

    公开(公告)日:2019-01-03

    申请号:US16022841

    申请日:2018-06-29

    Abstract: Ultrasound devices configured to perform high-intensity focused ultrasound (HIFU) are described. An ultrasound device may include HIFU units configured to emit high acoustic intensities and elasticity detectors configured to determine characteristics of the target area of a human body based on the elasticity of the target area. The elasticity detectors may determine, e.g., whether the target area is healthy, and if not, the type cell in need of treatment (e.g., the type of cancer cell present in the target area). In one example, the elasticity detectors may be configured to determine the stiffness of the target area, which may provide an indication as to the type of cell present in the area, by estimating the velocity of a shear wave propagating away from the target area. The shear wave may arise in response to the application of an ultrasound wave to the target area.

    METHOD AND APPARATUS TO CALIBRATE ULTRASOUND TRANSDUCERS

    公开(公告)号:US20200163654A1

    公开(公告)日:2020-05-28

    申请号:US16696883

    申请日:2019-11-26

    Abstract: The disclosed embodiments relate to a capacitive micromachined transducers for ultrasound imaging having pressure calibrator to compensate for ultrasound image distortions caused by environmental pressure changes. In one embodiment, the disclosure relates to a method to calibrate a first ultrasound transducer of an array of ultrasound transducers for ambient pressure variation. The method includes the steps of detecting a real-time ambient pressure value; determining a pressure difference value between the detected ambient pressure value and a predetermined pressure value; and calibrating the first ultrasound transducers to compensate for the determined pressure difference.

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