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    • 7. 发明申请
    • Transmit multibeam for compounding ultrasound data
    • 发送复合超声数据的多波束
    • US20060241454A1
    • 2006-10-26
    • US11099866
    • 2005-04-05
    • Kutay UstunerAnming CaiCharles Bradley
    • Kutay UstunerAnming CaiCharles Bradley
    • A61B8/00
    • G01S15/8995A61B8/00A61B8/4483G01S7/5209G01S7/52092G01S7/52095
    • Transmit multibeams insonify an object with multiple noncollinear transmit beams fired substantially simultaneously. The noncollinear beams are along different scan lines of same scan geometry, or they belong to scan lines of different scan geometries. One or more receive beams are formed in parallel in response to each of the noncollinear beams. The scan geometry and/or center frequency is varied between the noncollinear transmit beams of a transmit event. By scanning the transmit multibeam, and varying the scan geometry and/or frequency between the noncollinear transmit beams of a transmit event, multiple component images are generated for compounding. The component images are scan-converted (if scan geometries are different), weighted and combined after envelope detection.
    • 发射多波束使多个基本同时发射的非共线发射波束对象物体失真。 非共线光束沿相同扫描几何的不同扫描线,或者它们属于不同扫描几何形状的扫描线。 一个或多个接收波束响应于每个非共线波束平行地形成。 扫描几何和/或中心频率在发射事件的非共线发射波束之间变化。 通过扫描发射多波束,并改变发射事件的非共线发射波束之间的扫描几何形状和/或频率,生成多个分量图像进行复合。 组件图像进行扫描转换(如果扫描几何不同),在包络检测后加权和组合。
    • 9. 发明申请
    • Coherence factor adaptive ultrasound imaging
    • 相干因子自适应超声成像
    • US20060173313A1
    • 2006-08-03
    • US11046347
    • 2005-01-27
    • D-L LiuLewis ThomasKutay UstunerCharles BradleyJohn Lazenby
    • D-L LiuLewis ThomasKutay UstunerCharles BradleyJohn Lazenby
    • A61B8/00
    • G01S7/52046G01S15/8993
    • A set of N×M signals are acquired from an object, where N is the number of array elements and M corresponds to variations in data acquisition and/or processing parameters. The parameters include transmit aperture functions, transmit waveforms, receive aperture functions, and receive filtering functions in space and/or time. A coherence factor is computed as a ratio of the energy of the coherent sum to the energy of the at-least-partially incoherent sum of channel or image signals acquired with at least one different parameter. Partial beamformed data may be used for channel coherence calculation. For image domain coherence, a component image is formed for each different transmit beam or receive aperture function, and a coherence factor image is computed using the set of component images. The coherence factor image is displayed or used to modify or blend other images formed of the same region.
    • 从对象获取一组NxM信号,其中N是数组元素的数量,M对应于数据采集和/或处理参数中的变化。 这些参数包括发射孔径功能,发射波形,接收孔径功能,以及在空间和/或时间中接收滤波功能。 相干因子被计算为用至少一个不同参数获取的信道或图像信号的至少部分非相干和的相干和的能量与能量的比率。 部分波束形成数据可用于通道相干计算。 对于图像域相干性,为每个不同的发射波束或接收孔径函数形成分量图像,并且使用该组分量图像来计算相干因子图像。 相干因子图像被显示或用于修改或混合由相同区域形成的其他图像。