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    CLUTTER SUPPRESSION FOR SYNTHETIC APERTURE ULTRASOUND
    4.
    发明公开
    CLUTTER SUPPRESSION FOR SYNTHETIC APERTURE ULTRASOUND 审中-公开
    抑制合成孔径超声波的杂波抑制

    公开(公告)号：EP3204791A1

    公开(公告)日：2017-08-16

    申请号：EP15784475.4

    申请日：2015-09-28

    申请人： Koninklijke Philips N.V. ,  Volcano Corporation

    发明人： HANCOCK, Andrew

    IPC分类号： G01S15/89 ,  G01S7/52

    CPC分类号： G06T5/002 ,  A61B8/12 ,  A61B8/5269 ,  G01S7/52026 ,  G01S7/52047 ,  G01S7/52077 ,  G01S15/8915 ,  G06T2207/10004 ,  G06T2207/10132

    摘要： Solid-state ultrasound imaging devices, systems, and methods are provided. Some embodiments of the present disclosure are particularly directed to identifying and removing artifacts in ultrasound data due to side lobes, grating lobes, and/or other effect. In some embodiments, an ultrasound processing system (800) includes an interface operable to receive A-line signal data (602) and a focusing engine (604-612) operable to perform a focusing process on the received A-line signal data (602) to produce focused A-line signal data. The ultrasound processing system (800) also includes a coherency unit (802) operable to determine a measurement of coherency of the received A-line signal data (602). The ultrasound processing system (800) further includes an adjustment unit (804) operable to determine an adjustment to the focused A-line signal data based on the measurement of coherency, and a compensation unit (812) operable to apply the adjustment to the focused A-line signal data.

    摘要翻译： 提供了固态超声成像装置，系统和方法。 本公开的一些实施例具体涉及识别和去除由于旁瓣，栅瓣和/或其他效应引起的超声数据中的伪像。 在一些实施例中，超声处理系统包括可操作以接收A线信号数据的接口和可操作以对所接收的A线信号数据执行聚焦过程以产生聚焦的A线信号数据的聚焦引擎。 超声处理系统还包括相干单元，其可操作以确定所接收的A线信号数据的一致性的测量。 超声处理系统还包括：调整单元，用于基于相干性的测量确定对聚焦的A线信号数据的调整;以及补偿单元，用于将调整应用于聚焦的A线信号数据。

    ADAPTIVE RINGDOWN SUBTRACTION FOR CORONARY AND PERIPHERAL INTRAVASCULAR ULTRASOUND (IVUS)
    5.
    发明公开
    ADAPTIVE RINGDOWN SUBTRACTION FOR CORONARY AND PERIPHERAL INTRAVASCULAR ULTRASOUND (IVUS) 审中-公开

    公开(公告)号：EP3975108A1

    公开(公告)日：2022-03-30

    申请号：EP21201819.6

    申请日：2017-11-15

    申请人： Koninklijke Philips N.V.

    发明人： HANCOCK, Andrew ,  PARK, Jinhyoung

    IPC分类号： G06T5/00 ,  G06T5/50

    摘要： Ultrasound imaging systems and computer-implemented methods are provided. In one aspect, a computer-implemented method of reducing ringdown artifacts in an ultrasound imaging system includes obtaining a plurality of frames of samples including tissue information and a ringdown component; determining a reference frame based on the plurality of frames to approximate the ringdown component; subtracting the reference frame from a current frame of the plurality of frames to produce a difference frame; selecting between the current frame and the difference frame to obtain a ringdown-reduced frame to represent the tissue information; and forming an ultrasound image from the ringdown-reduced frame. In a further aspect, an ultrasound image processing system comprises a processing unit configured to compute a difference frame based on a current frame and a reference frame; and select between the current frame and the difference frame to obtain a ringdown-reduced frame to represent the tissue information.