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    Ultrasound clutter filtering with iterative high pass filter selection
    3.
    发明授权
    Ultrasound clutter filtering with iterative high pass filter selection 失效
    超声波杂波滤波与迭代高通滤波器的选择

    公开(公告)号：US06997876B2

    公开(公告)日：2006-02-14

    申请号：US10825719

    申请日：2004-04-16

    Applicant: Larry Y. L. Mo ,  Ching-Hua Chou ,  Ting-Lan Ji ,  Glen W. McLaughlin

    Inventor： Larry Y. L. Mo ,  Ching-Hua Chou ,  Ting-Lan Ji ,  Glen W. McLaughlin

    IPC: A61B8/06

    CPC classification number: A61B8/4438 ,  A61B8/00 ,  A61B8/06 ,  A61B8/08 ,  A61B8/0833 ,  A61B8/0866 ,  A61B8/13 ,  A61B8/4433 ,  A61B8/4455 ,  A61B8/462 ,  A61B8/467 ,  A61B8/488 ,  G01S7/52084 ,  G01S15/8981

    Abstract: A system and method for ultrasound clutter filtering is provided. A processor is configured to iteratively select an optimal high pass filter for the progressive, ordered filtering of clutter from ultrasound color flow imaging data. The high pass filter input for each iterative selection and ordered set of high pass filters is the same original ultrasound color flow imaging data. The high pass filters have different cutoff frequencies whereby each high pass filter can be implemented using different structures. The system and method allow for filtering of clutter from ultrasound color flow imaging data until the clutter is substantially removed.

    Abstract translation: 提供了一种用于超声波杂波滤波的系统和方法。 处理器被配置为迭代地选择用于来自超声彩色流成像数据的逐行有序滤波的最优高通滤波器。 每个迭代选择和有序集合的高通滤波器的高通滤波器输入是相同的原始超声彩色流成像数据。 高通滤波器具有不同的截止频率，由此可以使用不同的结构实现每个高通滤波器。 该系统和方法允许从超声彩色流成像数据中滤除杂波，直到杂波基本上被去除。

    System and method for adaptive clutter filtering in ultrasound color flow imaging
    4.
    发明授权
    System and method for adaptive clutter filtering in ultrasound color flow imaging 有权
    超声彩色成像中自适应杂波滤波的系统和方法

    公开(公告)号：US06733455B2

    公开(公告)日：2004-05-11

    申请号：US10167606

    申请日：2002-06-11

    Applicant: Larry Y. L. Mo ,  Ching-Hua Chou ,  Ting-Lan Ji ,  Glen W. McLaughlin

    Inventor： Larry Y. L. Mo ,  Ching-Hua Chou ,  Ting-Lan Ji ,  Glen W. McLaughlin

    IPC: A61B806

    CPC classification number: A61B8/4438 ,  A61B8/00 ,  A61B8/06 ,  A61B8/08 ,  A61B8/0833 ,  A61B8/0866 ,  A61B8/13 ,  A61B8/4433 ,  A61B8/4455 ,  A61B8/462 ,  A61B8/467 ,  A61B8/488 ,  G01S7/52084 ,  G01S15/8981

    Abstract: An adaptive clutter filtering for ultrasound color flow imaging is provided including an iterative algorithm that is used to select the best clutter filter for each packet of color flow data. If significant clutter motion is present, a high pass filter cutoff frequency is automatically set to suppress the clutter and associated flash artifacts. The cutoff frequency is chosen according to the frequency of the clutter—the lower the clutter frequency, the lower the cutoff frequency can be. If clutter frequencies are low, lower filter cutoffs allow for maximum low flow detection. In this manner, the filter cutoff frequency can be optimized based on the data for each pixel in the color flow image.

    Abstract translation: 提供了用于超声彩色流成像的自适应杂波滤波器，包括用于为每个颜色流数据分组选择最佳杂波滤波器的迭代算法。 如果存在明显的杂波运动，则自动设置高通滤波器截止频率以抑制杂波和相关联的闪光伪像。 根据杂波频率选择截止频率 - 杂波频率越低，截止频率越低。 如果杂波频率较低，滤波器截止频率较低，可实现最大的低流量检测。 以这种方式，可以基于彩色图像中的每个像素的数据来优化滤波器截止频率。

    Method and apparatus for forming medical ultrasound images
    5.
    发明授权
    Method and apparatus for forming medical ultrasound images 有权
    用于形成医学超声图像的方法和装置

    公开(公告)号：US06309356B1

    公开(公告)日：2001-10-30

    申请号：US09518972

    申请日：2000-03-06

    Applicant: Kutay F. Ustuner ,  Charles E. Bradley ,  Lewis J. Thomas ,  Ching-Hua Chou ,  David Napolitano

    Inventor： Kutay F. Ustuner ,  Charles E. Bradley ,  Lewis J. Thomas ,  Ching-Hua Chou ,  David Napolitano

    IPC: A61B800

    CPC classification number: G01S15/8959 ,  G01S7/52026 ,  G01S7/52049 ,  G01S15/8909

    Abstract: A pulse echo beamforming system generates high spatial bandwidth ultrasound images using only a few transmit/receive events per frame. Each transmit/receive event consists of firing an unfocused or weakly focused wave and receiving and storing the echo on every receive channel. Each set of stored echoes is delayed and apodized to form component beams for each desired image point in the region insonified by that particular wave. The final images are synthesized by adding two or more of the component beams for each image point.

    Abstract translation: 脉冲回波波束成形系统使用每帧仅使用少量发射/接收事件来生成高空间带宽超声图像。 每个发射/接收事件包括触发未聚焦或弱聚焦的波，并在每个接收通道上接收和存储回波。 每组存储的回波被延迟和变迹以形成由该特定波加密的区域中的每个期望图像点的分量波束。 通过为每个图像点添加两个或更多个分量光束来合成最终图像。

    Ultrasonic imaging method and system
    6.
    发明授权
    Ultrasonic imaging method and system 失效
    超声成像方法及系统

    公开(公告)号：US6132374A

    公开(公告)日：2000-10-17

    申请号：US904825

    申请日：1997-08-01

    Applicant: John A. Hossack ,  Ching-Hua Chou

    Inventor： John A. Hossack ,  Ching-Hua Chou

    IPC: A61B8/00 ,  A61B8/14 ,  G01S7/52

    CPC classification number: G01S7/52074 ,  A61B8/00 ,  G01S7/52038 ,  A61B8/14 ,  G01S7/52065

    Abstract: An ultrasonic imaging system and method provide a composite image having a near-field region and a far-field region that are displayed in a common imaging mode. The near-field region emphasizes received ultrasonic imaging at a harmonic of the fundamental of the transmit waveform, while the far-field region emphasizes received ultrasonic information at the fundamental frequency. In this way the advantages of harmonic imaging are obtained in the near-field without sacrificing penetration performance in the far-field.

    Abstract translation: 超声波成像系统和方法提供具有以公共成像模式显示的近场区域和远场区域的合成图像。 近场区域以发射波形的基波的谐波强调接收到的超声波成像，而远场区域以基频强调接收到的超声波信息。 以这种方式，在近场获得谐波成像的优点，而不会牺牲远场中的穿透性能。

    Continuous transmit focusing method and apparatus for ultrasound imaging system
    7.
    发明授权
    Continuous transmit focusing method and apparatus for ultrasound imaging system 有权
    超声成像系统的连续发射聚焦方法和装置

    公开(公告)号：US08672846B2

    公开(公告)日：2014-03-18

    申请号：US13196748

    申请日：2011-08-02

    Applicant: David J. Napolitano ,  Brian Derek DeBusschere ,  Glen W. McLaughlin ,  Larry Y. L. Mo ,  Ching-Hua Chou ,  Ting-Lan Ji ,  Robert W. Steins

    Inventor： David J. Napolitano ,  Brian Derek DeBusschere ,  Glen W. McLaughlin ,  Larry Y. L. Mo ,  Ching-Hua Chou ,  Ting-Lan Ji ,  Robert W. Steins

    IPC: A61B8/00

    CPC classification number: A61B8/145 ,  A61B8/4461 ,  A61B8/4483 ,  A61B8/4488 ,  A61B8/4494 ,  A61B8/463 ,  A61B8/5246 ,  G01S7/52019 ,  G01S7/52046 ,  G01S7/52095 ,  G01S15/8915 ,  G01S15/8927 ,  G01S15/8993 ,  G10K11/341

    Abstract: In one embodiment, an ultrasound imaging method comprises: providing a probe that includes one or more transducer elements for transmitting and receiving ultrasound waves; generating a sequence of spatially distinct transmit beams which differ in one or more of origin and angle; determining a transmit beam spacing substantially based upon a combination of actual and desired transmit beam characteristics, thereby achieving a faster echo acquisition rate compared to a transmit beam spacing based upon round-trip transmit-receive beam sampling requirements; storing coherent receive echo data, from two or more transmit beams of the spatially distinct transmit beams; combining coherent receive echo data from at least two or more transmit beams to achieve a substantially spatially invariant synthesized transmit focus at each echo location; and combining coherent receive echo data from each transmit firing to achieve dynamic receive focusing at each echo location.

    Abstract translation: 在一个实施例中，超声成像方法包括：提供包括用于发射和接收超声波的一个或多个换能器元件的探针; 产生在原点和角度中的一个或多个中不同的空间上不同的发射光束序列; 基于实际和期望的发射波束特性的组合来确定发射波束间隔，从而相对于基于往返发射 - 接收波束采样要求的发射波束间隔而获得更快的回波采集速率; 存储来自空间不同发射波束的两个或更多个发射波束的相干接收回波数据; 组合来自至少两个或更多个发射波束的相干接收回波数据，以在每个回波位置处实现基本上空间不变的合成发射焦点; 并组合来自每个发射发射的相干接收回波数据，以在每个回波位置实现动态接收聚焦。

    Ultrasound reconstruction unit
    8.
    发明申请
    Ultrasound reconstruction unit 有权
    超声重建单位

    公开(公告)号：US20070038102A1

    公开(公告)日：2007-02-15

    申请号：US11453336

    申请日：2006-06-13

    Applicant: Ching-Hua Chou ,  Glen McLaughlin ,  Larry Mo ,  Ting-Lan Ji

    Inventor： Ching-Hua Chou ,  Glen McLaughlin ,  Larry Mo ,  Ting-Lan Ji

    IPC: A61B8/00

    CPC classification number: G01S7/52047 ,  G01S15/8915 ,  Y10S128/916

    Abstract: An ultrasound reconstruction unit is provided. In one embodiment, a receive aperture control engine for the unit adaptively determines a set of reconstruction signals based on at least a series of selected echo signals and compares the size of a receive aperture with a predetermined number of reconstruction channels at each imaging point. The unit passes the selected echo signals from selected receive channels of one or more transducer elements to a reconstruction processor if the size of the receive aperture is not greater than the number of reconstruction channels. In another embodiment, the control engine compares the size of the receive aperture with a predetermined number of reconstruction channels at each imaging point and preprocess the selected echo signals to produce reconstructions signals that are equal in number to the number of reconstruction channels if the size of the receive aperture is greater than the number of reconstruction channels. The engine then outputs the reconstruction signals for further processing by a reconstruction processor.

    Abstract translation: 提供超声重建单元。 在一个实施例中，用于该单元的接收孔径控制引擎基于至少一系列选择的回波信号自适应地确定一组重建信号，并将接收孔径的大小与每个成像点处的预定数量的重建通道进行比较。 如果接收孔径的尺寸不大于重建通道的数量，则该单元将选定的一个或多个换能器元件的接收通道的回波信号传递到重建处理器。 在另一个实施例中，控制引擎将接收孔径的大小与每个成像点处的预定数量的重建通道进行比较，并且对所选择的回波信号进行预处理，以产生与重建通道数目相等的重建信号， 接收孔径大于重建通道的数量。 引擎然后输出重建信号，以便由重建处理器进一步处理。

    Medical ultrasound imaging system with composite delay profile
    10.
    发明授权
    Medical ultrasound imaging system with composite delay profile 失效
    医学超声成像系统具有复合延迟特征

    公开(公告)号：US06312386B1

    公开(公告)日：2001-11-06

    申请号：US09253088

    申请日：1999-02-19

    Applicant: Mirsaid Bolorforosh ,  Ching-Hua Chou ,  Albert Gee ,  Sungrung Huang ,  Kutay Ustuner

    Inventor： Mirsaid Bolorforosh ,  Ching-Hua Chou ,  Albert Gee ,  Sungrung Huang ,  Kutay Ustuner

    IPC: A61B800

    CPC classification number: G10K11/346

    Abstract: A medical ultrasound diagnostic imaging system includes a delay system that applies a composite delay profile to signals to or from respective transducer elements. One composite delay profile includes a first, substantially point-focus delay profile for a first set of the transducer elements and a second, substantially point-focus delay profile for a second set of the transducer elements. The first and second delay profiles cause ultrasonic energy from the respective first and second sets of the transducer elements to constructively add at first and second respective spaced focal zones in either transmit or receive. Another composite delay profile includes first and second portions that substantially correspond to respective parts of a point-focus delay profile, and third and fourth portions that are intermediate the point-focus delay profile and respective tangents.

    Abstract translation: 医疗超声诊断成像系统包括延迟系统，该延迟系统将复合延迟分布应用于来自相应换能器元件的信号。 一个复合延迟分布包括用于第一组换能器元件的第一基本点聚焦延迟分布和用于第二组换能器元件的第二基本点聚焦延迟分布。 第一和第二延迟分布引起来自相应的第一组和第二组换能器元件的超声波能量以在发射或接收中的第一和第二相应间隔的聚焦区建设性地增加。 另一个复合延迟分布包括基本对应于点聚焦延迟分布的各个部分的第一和第二部分以及位于点聚焦延迟分布和相应切线之间的第三和第四部分。

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