Rapid synthetic focus ultrasonic imaging with large linear arrays

    公开(公告)号:US11199625B2

    公开(公告)日:2021-12-14

    申请号:US16309601

    申请日:2017-06-12

    Abstract: An ultrasonic diagnostic imaging system and method translates an aperture across an array transducer which is less that the size of the array. At each aperture location a transmit beam is focused above, or alternatively below, the array and a region of interest being scanned from the aperture location, resulting in broad insonification of the region of interest. At the lateral ends of the array the aperture is no longer translated but the focal point of the transmit beam is translated from the same aperture position, preferably with tilting of the beam direction. Multiple receive beams are processed in response to each transmit event and the overlapping receive beams and echo locations are spatially combined to produce synthetic transmit focusing over the center of the image field and noise reduction by spatial compounding at the lateral ends of the image field.

    SURFACE COMPLIANT ULTRASOUND TRANSDUCER ARRAY

    公开(公告)号:US20190159761A1

    公开(公告)日:2019-05-30

    申请号:US16321562

    申请日:2017-07-21

    Abstract: An ultrasound transducer array (100) is disclosed comprising an array of elongate support members (110) displaceable and/or deformable relative to each other in the elongation direction of said elongate support members, each elongate support member having a patient facing surface carrying an ultrasound transducer tile (120); and a plurality of sensors (115), each adapted to detect the relative displacement and/or deformation of one of said elongate support members. An ultrasound system (10) including such an ultrasound transducer array and an operating method (200) of such an ultrasound system are also disclosed.

    ULTRASOUND IMAGE ACQUISITION, TRACKING AND REVIEW

    公开(公告)号:US20240057970A1

    公开(公告)日:2024-02-22

    申请号:US18269050

    申请日:2021-12-16

    CPC classification number: A61B8/4254 A61B8/463 A61B8/468 A61B8/5207

    Abstract: Systems and methods for ultrasound image acquisition, tracking and review are disclosed. The systems can include an ultrasound probe coupled with at least one tracking device configured to determine a position of the probe based on a combination of ultrasound image data and probe orientation data. The image data can be used to determine a physical reference point and superior-inferior probe coordinates within a patient being imaged, which can be supplemented with the probe orientation data to determine lateral coordinates of the probe. A graphical user interface can display imaging zones corresponding to a scan protocol, along with an imaging status of each zone based at least in part on the probe position. Ultrasound images acquired by the systems can be tagged with spatial indicators and severity indicators, after which the images can be stored for later retrieval and expert review.

    VIBRATION ACTUATOR FOR SHEAR WAVE ELASTOGRAPHY, SYSTEM AND METHOD

    公开(公告)号:US20240055936A1

    公开(公告)日:2024-02-15

    申请号:US18266667

    申请日:2021-12-14

    CPC classification number: H02K7/063 A61B8/485 H02K11/22 A61B8/4488

    Abstract: A vibration actuator (10) for mechanically generating a shear wave comprises a plurality of n rotational vibrators (141, 142, 143), an accelerometer (16), and a controller (18). The plurality of n rotational vibrators enables generation of a vibration vector with desired directional behavior selected from a plurality of vibration vectors (34, 36, 38) of different directional behaviors. Each rotational vibrator comprises an independently controllable motor (20) having a drive shaft (22) and an eccentric disk (24). The accelerometer is arranged to detect a vibration vector generated by at least two of the plurality of n rotational vibrators. The controller selectively controls a first set of two rotational vibrators to rotate respective eccentric disks in a first coordinated manner to produce a first vibration vector, and a second set of two rotational vibrators to rotate respective eccentric disks in a second coordinated manner to produce a second vibration vector, with different respective directional behaviors.

    Sensor-based shape identification
    20.
    发明授权

    公开(公告)号:US11877887B2

    公开(公告)日:2024-01-23

    申请号:US16970995

    申请日:2019-02-18

    CPC classification number: A61B8/0841 A61B8/54 G01S15/8934

    Abstract: A controller for determining shape of an interventional device includes a memory that stores instructions, and a processor that executes the instructions. When executed by the processor, the instructions cause the controller to execute a process that includes controlling an imaging probe to emit at least one tracking beam to an interventional medical device over a period of time comprising multiple different points of time. The process also includes determining a shape of the interventional medical device, based on a response to the tracking beams received over the period of time from a first sensor that moves along the interventional medical device during the period of time relative to a fixed location on the interventional medical device for the period of time.

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