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    Ultrasonic diagnostic imaging system with high frame rate synthetic transmit focus
    3.
    发明授权
    Ultrasonic diagnostic imaging system with high frame rate synthetic transmit focus 失效
    超声波诊断成像系统具有高帧速率合成传输焦点

    公开(公告)号：US06432056B1

    公开(公告)日：2002-08-13

    申请号：US09415958

    申请日：1999-10-08

    申请人： Clifford R. Cooley ,  Thomas J Sabourin ,  Brent Stephen Robinson

    发明人： Clifford R. Cooley ,  Thomas J Sabourin ,  Brent Stephen Robinson

    IPC分类号： A61B800

    CPC分类号： G01S7/52085 ,  G01S7/52046 ,  G01S7/52095 ,  G01S15/8977

    摘要： An ultrasonic diagnostic imaging system is provided which produces scanlines with synthesized transmit foci at a high frame rate of display. Beams are transmitted and received which have different beam steering and focal characteristics. At least one of the received beams is weighted and the steering and focal characteristics of the weighted received beams are interpolated to form scanlines for display which exhibit the focal properties of both beams.

    摘要翻译： 提供了一种超声波诊断成像系统，其以高帧率的显示产生具有合成的发射焦点的扫描线。 发射和接收光束具有不同的光束转向和焦点特性。 所接收的光束中的至少一个被加权，并且加权的接收光束的转向和焦点特性被内插以形成显示两个光束的焦点特性的用于显示的扫描线。

    Ultrasonic diagnostic image scanning techniques
    5.
    发明授权
    Ultrasonic diagnostic image scanning techniques 失效
    超声诊断图像扫描技术

    公开(公告)号：US5617863A

    公开(公告)日：1997-04-08

    申请号：US489668

    申请日：1995-06-12

    申请人： David N. Roundhill ,  Mikhail Starosta ,  David Rust ,  Clifford R. Cooley

    发明人： David N. Roundhill ,  Mikhail Starosta ,  David Rust ,  Clifford R. Cooley

    IPC分类号： G01B17/00 ,  A61B8/00 ,  G01B17/06 ,  G01N29/06 ,  G01S7/52 ,  G01S15/89

    CPC分类号： G01S7/52085 ,  G01S7/52047 ,  G01S7/52063 ,  G01S15/8918 ,  G01S15/8979

    摘要： A technique for scanning an image field with adjacent beams of ultrasonic energy is provided in which initially transmitted beams are transmitted along beam directions at the lateral sides of the image field. Subsequent beams are alternately transmitted on either side of the initially transmitted beams and at lateral locations which converge toward the center of the image field until the full image field has been scanned. In an alternate embodiment initially transmitted beams are transmitted on one side of the center of the image field, subsequent beams diverge from the locations of the initially transmitted beams, and concluding beams laterally converge at a location on the other side of the center of the image field.

    摘要翻译： 提供了一种用于用相邻超声能量波束扫描图像场的技术，其中初始透射的光束沿着图像场的侧面处的波束方向传输。 随后的光束在最初发射的光束的两侧和在朝向图像场的中心会聚的横向位置处交替传输，直到完整的图像场被扫描。 在替代实施例中，最初发射的波束在图像场的中心的一侧被传输，随后的波束从最初发射的波束的位置发散，并且结束波束横向会聚在图像中心另一侧的位置 领域。

    Ultrasonic imaging system with interpolated scan lines
    7.
    发明授权
    Ultrasonic imaging system with interpolated scan lines 失效
    具有内插扫描线的超声波成像系统

    公开(公告)号：US5390674A

    公开(公告)日：1995-02-21

    申请号：US175456

    申请日：1993-12-30

    申请人： Brent S. Robinson ,  Clifford R. Cooley ,  Juin-Jet Hwang ,  Robert R. Entrekin

    发明人： Brent S. Robinson ,  Clifford R. Cooley ,  Juin-Jet Hwang ,  Robert R. Entrekin

    IPC分类号： G01S7/52 ,  G01S15/89 ,  A61B8/00

    CPC分类号： G01S7/52085 ,  G01S15/8977 ,  G01S7/52044 ,  G01S7/52077

    摘要： An ultrasonic diagnostic imaging system is provided which scans an image region to receive a plurality of spatially arranged lines of ultrasonic image information signals. These ultrasonic line information signals are used in an interpolater to interpolate one or more lines which are spatially interlineated between each pair of spatially adjoining received lines. These interpolated lines are produced using either the received RF or demodulated IF ultrasonic image information signals. The interpolated lines are produced prior to scan conversion, and preferably prior to nonlinear processing such as detection or log compression to reduce spatial aliasing artifacts. In one preferred embodiment the interpolater comprises a transversal filter of four taps which is responsive to received line information signals from a common range or depth. In a second embodiment the interpolater is adaptively responsive to motion to select samples for interpolation which would be spatially at the same range in the absence of motional effects.

    摘要翻译： 提供一种超声波诊断成像系统，其扫描图像区域以接收多个空间排列的超声波图像信息信号线。 这些超声波线信息信号用于内插器中插入在每对空间相邻的接收线之间空间上相互交错的一条或多条线。 这些内插线是使用所接收的RF或解调的IF超声波图像信息信号产生的。 插入线在扫描转换之前产生，并且优选地在非线性处理之前，例如检测或对数压缩，以减少空间混叠伪像。 在一个优选实施例中，内插器包括四个抽头的横向滤波器，其响应于来自公共范围或深度的接收线路信息信号。 在第二实施例中，内插器自适应地响应于运动以选择在没有运动效应的情况下在空间上处于相同范围的插值的样本。

    Ultrasonic diagnostic imaging system with synthesized transmit focus
    9.
    发明授权
    Ultrasonic diagnostic imaging system with synthesized transmit focus 失效
    超声波诊断成像系统具有合成发射焦距

    公开(公告)号：US06315723B1

    公开(公告)日：2001-11-13

    申请号：US09415959

    申请日：1999-10-08

    申请人： Brent Stephen Robinson ,  Thomas J Sabourin ,  Clifford R. Cooley

    发明人： Brent Stephen Robinson ,  Thomas J Sabourin ,  Clifford R. Cooley

    IPC分类号： A61B800

    CPC分类号： G01S7/52095 ,  G01S7/52046 ,  G01S15/8977 ,  G10K11/346

    摘要： An ultrasonic diagnostic imaging system is provided with synthesized transmit focus. Several beams are transmitted, each with a different transmit focus. Echoes received from the differently focused beams are combined to form a scanline with an extended focus. The echoes are preferably weighted and/or phase adjusted prior to being combined. Combining is performed in the r.f. domain before nonlinear processing of the signals such as amplitude detection. The resultant extended focus scanline exhibits the property of dynamic transmit focusing.

    摘要翻译： 超声诊断成像系统具有合成的发射焦点。 传输多个光束，每个光束具有不同的发射焦点。 从不同聚焦光束接收的回波被组合以形成具有扩展焦点的扫描线。 回波优选在组合之前进行加权和/或相位调整。 组合是在r.f. 域之前非线性处理的信号如幅度检测。 所得到的扩展聚焦扫描线表现出动态发射聚焦的特性。

    High resolution ultrasonic imaging through interpolation of received scanline data
    10.
    发明授权
    High resolution ultrasonic imaging through interpolation of received scanline data 失效
    通过插入接收的扫描线数据进行高分辨率超声成像

    公开(公告)号：US5940123A

    公开(公告)日：1999-08-17

    申请号：US800005

    申请日：1997-02-13

    申请人： Ronald E. Daigle ,  Brent Stephen Robinson ,  Clifford R. Cooley

    发明人： Ronald E. Daigle ,  Brent Stephen Robinson ,  Clifford R. Cooley

    IPC分类号： A61B8/00 ,  G01S7/52 ,  G06T1/00 ,  H04N5/31

    CPC分类号： G01S7/5206 ,  G01S7/52044 ,  G01S7/52085 ,  G01S7/52095

    摘要： A method and apparatus are provided for interpolating image lines from ultrasonically obtained scanlines of an image region. The interpolated lines are preferably formed one-quarter and three-quarters of the distance between each pair of received scanlines by combining weighted samples of the adjacent scanlines in proportion to their distances from the interpolated lines. The received scanlines are preferably formed by a beamformer which samples the received lines at quadrature phases of the scanhead center frequency and filters the samples by combining successive samples of a related phase. The image lines are scan converted by computing a grid of weighted values between each pair of image lines, and using the closest value for each pixel in the ultrasound image.

    摘要翻译： 提供了一种用于从图像区域的超声波获取的扫描线内插图像线的方法和装置。 通过将相邻扫描线的加权样本与其与插入线的距离成比例地组合，插入线优选地形成每对接收扫描线之间的距离的四分之一和四分之三。 所接收的扫描线优选地由波束形成器形成，波束形成器对扫描头中心频率的正交相位对接收到的线进行采样，并通过组合相关相位的连续采样来对样本进行滤波。 通过计算每对图像线之间的加权值的网格并使用超声图像中的每个像素的最接近的值来扫描图像行。