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    Handheld ultrasound color flow imaging system with mechanically scanned, mechanically focused multi-element transducers
    2.
    发明授权
    Handheld ultrasound color flow imaging system with mechanically scanned, mechanically focused multi-element transducers 有权
    手持超声彩色流量成像系统，具有机械扫描，机械聚焦的多元素换能器

    公开(公告)号：US08684933B2

    公开(公告)日：2014-04-01

    申请号：US12858117

    申请日：2010-08-17

    申请人： Xiaohui Hao ,  Donald J. Nisler

    发明人： Xiaohui Hao ,  Donald J. Nisler

    IPC分类号： A61B8/06 ,  A61B8/14 ,  G01F1/66

    CPC分类号： A61B8/14 ,  A61B8/4427 ,  A61B8/4433 ,  A61B8/4461 ,  G01S7/52034 ,  G01S7/52085 ,  G01S15/894 ,  G01S15/8945 ,  G01S15/8988

    摘要： A portable ultrasound imaging system employs a mechanically focused multi-element circular annular transducer that is mechanically scanned using a motor. Received echoes are processed to form two dimensional gray scale B mode images or two dimensional color tissue flow images which are displayed on a display unit. In case of color flow imaging, a high pulse repetition frequency imaging sequence is employed for a reasonable frame rate and special down-sampling techniques are applied to achieve an effective low pulse repetition frequency for flow estimation with enough signal to noise ratio. The system also includes a docking subsystem which charges a system battery and transfers patient and image data between a PACS system, workstation or other information system and the portable ultrasound imaging system.

    摘要翻译： 便携式超声成像系统采用机械聚焦的多元件圆形环形换能器，其使用电动机进行机械扫描。 接收回波被处理以形成显示在显示单元上的二维灰度B模式图像或二维彩色组织流图像。 在彩色流动成像的情况下，采用高脉冲重复频率成像序列以获得合理的帧速率，并采用特殊的下采样技术来实现具有足够信噪比的流量估计的有效低脉冲重复频率。 该系统还包括对接子系统，其对系统电池充电并在PACS系统，工作站或其他信息系统与便携式超声成像系统之间传送患者和图像数据。

    Ultrasound diagnostic flow imaging with coded excitation
    3.
    发明授权
    Ultrasound diagnostic flow imaging with coded excitation 有权
    超声诊断流程成像与编码激励

    公开(公告)号：US07887487B2

    公开(公告)日：2011-02-15

    申请号：US11303622

    申请日：2005-12-15

    申请人： Xiaohui Hao ,  Kutay F. Ustuner ,  Gregory L. Holley ,  Seshadri Srinivasan ,  Albert Gee

    发明人： Xiaohui Hao ,  Kutay F. Ustuner ,  Gregory L. Holley ,  Seshadri Srinivasan ,  Albert Gee

    IPC分类号： A61B8/00

    CPC分类号： A61B8/06 ,  A61B8/488 ,  G01S7/52038 ,  G01S15/8954 ,  G01S15/8959 ,  G01S15/8979

    摘要： Diagnostic ultrasound flow imaging is performed with coded excitation pulses. Due to the use of frequency coded excitation pulses, flow information may suffer from spatial misregistration and estimate errors. Spatial position shift in flow data is offset for alignment with B-mode or other imaging. The flow estimates are compensated for the imaging center frequency variation with depth. The wide bandwidth information available due to coded excitation may allow anti-aliasing by estimating velocities from two frequency bands.

    摘要翻译： 用编码的激发脉冲进行诊断超声波成像。 由于使用频率编码的激励脉冲，流量信息可能会受到空间重合失调和估计误差的困扰。 流量数据中的空间位置偏移偏移以与B模式或其他成像对齐。 影像中心频率随深度的变化而补偿流量估计值。 由于编码激励可用的宽带宽信息可以通过估计来自两个频带的速度来允许抗混叠。

    Method and apparatus to enhance ultrasound contrast imaging using stepped-chirp waveforms
    4.
    发明授权
    Method and apparatus to enhance ultrasound contrast imaging using stepped-chirp waveforms 有权
    使用阶梯啁啾波形增强超声造影成像的方法和装置

    公开(公告)号：US06953434B2

    公开(公告)日：2005-10-11

    申请号：US10065180

    申请日：2002-09-24

    申请人： Xiaohui Hao ,  Satchi Panda ,  Steven C. Miller ,  Richard Y. Chiao

    发明人： Xiaohui Hao ,  Satchi Panda ,  Steven C. Miller ,  Richard Y. Chiao

    IPC分类号： A61B8/00 ,  A61B8/08 ,  G01S15/89 ,  A61B8/06

    CPC分类号： A61B8/4281 ,  G01S7/52022 ,  G01S7/52039 ,  G01S15/895 ,  G01S15/8963

    摘要： A method and apparatus in an ultrasound imaging system is disclosed that enhances the contrast-to-tissue ratio and signal-to-noise ratio of contrast imaging using stepped-chirp waveforms. The first waveform component is employed with a first frequency optimized to initiate the bubble dynamics and the second waveform component is employed with a second frequency optimized to produce an enhanced bubble nonlinear response. The first waveform component and the at least a second waveform component are transmitted as a single stepped-chirp transmit pulse. At least one of a center frequency, an amplitude, a starting phase, and a bandwidth of the waveform components are adjusted to generate the single stepped-chirp transmit pulse. A relative phase, a switch time, and a time delay between the waveform components are also adjusted for maximal enhancement of bubble nonlinear response.

    摘要翻译： 公开了一种超声成像系统中的方法和装置，其增强了使用阶梯啁啾波形的对比度成像的对比度与组织比和信噪比。 第一波形分量被采用优化的第一频率以启动气泡动力学，并且第二波形分量被采用优化的第二频率以产生增强的气泡非线性响应。 第一波形分量和至少第二波形分量作为单个步进线性调频脉冲发送脉冲发送。 调整波形分量的中心频率，幅度，起始相位和带宽中的至少一个，以产生单个阶梯形啁啾发送脉冲。 波形分量之间的相对相位，开关时间和时间延迟也被调整以用于气泡非线性响应的最大增强。

    Ultrasound diagnostic flow imaging with coded excitation
    5.
    发明申请
    Ultrasound diagnostic flow imaging with coded excitation 有权
    超声诊断流程成像与编码激励

    公开(公告)号：US20070038108A1

    公开(公告)日：2007-02-15

    申请号：US11303622

    申请日：2005-12-15

    申请人： Xiaohui Hao ,  Kutay Ustuner ,  Gregory Holley ,  Seshadri Srinivasan ,  Albert Gee

    发明人： Xiaohui Hao ,  Kutay Ustuner ,  Gregory Holley ,  Seshadri Srinivasan ,  Albert Gee

    IPC分类号： A61B8/00

    CPC分类号： A61B8/06 ,  A61B8/488 ,  G01S7/52038 ,  G01S15/8954 ,  G01S15/8959 ,  G01S15/8979

    摘要： Diagnostic ultrasound flow imaging is performed with coded excitation pulses. Due to the use of frequency coded excitation pulses, flow information may suffer from spatial misregistration and estimate errors. Spatial position shift in flow data is offset for alignment with B-mode or other imaging. The flow estimates are compensated for the imaging center frequency variation with depth. The wide bandwidth information available due to coded excitation may allow anti-aliasing by estimating velocities from two frequency bands.

    摘要翻译： 用编码的激发脉冲进行诊断超声波成像。 由于使用频率编码的激励脉冲，流量信息可能会受到空间重合失调和估计误差的困扰。 流量数据中的空间位置偏移偏移以与B模式或其他成像对齐。 影像中心频率随深度的变化而补偿流量估计值。 由于编码激励可用的宽带宽信息可以通过估计来自两个频带的速度来允许抗混叠。

    Method and apparatus for ultrasound compound imaging with combined fundamental and harmonic signals
    6.
    发明申请
    Method and apparatus for ultrasound compound imaging with combined fundamental and harmonic signals 有权
    用于组合基波和谐波信号的超声复合成像的方法和装置

    公开(公告)号：US20050101865A1

    公开(公告)日：2005-05-12

    申请号：US10703903

    申请日：2003-11-07

    申请人： Xiaohui Hao ,  Feng Lin ,  Richard Chiao

    发明人： Xiaohui Hao ,  Feng Lin ,  Richard Chiao

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

    CPC分类号： G01S7/52038 ,  G01S7/52047 ,  G01S15/8995

    摘要： Certain embodiments include a system and method for improved compound imaging using a plurality of imaging modes. In an embodiment, a plurality of echo signals are received in response to a plurality of beams formed based on different imaging modes corresponding to different steering angles, such as steered or non-steered angles. The plurality of echo signals is compounded to form a compound image. In an embodiment, the imaging mode includes at least one of harmonic, fundamental, coded harmonic, and variable frequency imaging. Parameters may be generated for the plurality of beams formed based on different imaging modes corresponding to different steering angles. Additionally, the parameters may be stored. The echo signals may be filtered. Imaging mode may be controlled based on steering angle. Employing different imaging modes based on steering angles for spatial compound imaging helps reduce grating lobe artifacts while improving speckle reduction effect.

    摘要翻译： 某些实施例包括用于使用多个成像模式改进复合成像的系统和方法。 在一个实施例中，响应于基于对应于不同转向角的不同成像模式形成的多个波束（例如转向或非转向角）来接收多个回波信号。 多个回波信号被复合以形成复合图像。 在一个实施例中，成像模式包括谐波，基波，编码谐波和可变频率成像中的至少一个。 可以针对对应于不同转向角的不同成像模式形成的多个波束产生参数。 另外，可以存储参数。 可以对回波信号进行滤波。 成像模式可以基于转向角来控制。 基于空间复合成像的转向角采用不同的成像模式有助于减少光栅叶片伪影，同时提高散斑效果。

    Method and apparatus for tissue harmonic imaging with natural (tissue) decoded coded excitation
    10.
    发明授权
    Method and apparatus for tissue harmonic imaging with natural (tissue) decoded coded excitation 失效
    用自然（组织）解码编码激励进行组织谐波成像的方法和装置

    公开(公告)号：US07037265B2

    公开(公告)日：2006-05-02

    申请号：US10679542

    申请日：2003-10-06

    申请人： Xiaohui Hao ,  Richard Chiao ,  Steven Miller ,  Yadong Li

    发明人： Xiaohui Hao ,  Richard Chiao ,  Steven Miller ,  Yadong Li

    IPC分类号： A61B8/00

    CPC分类号： G01S15/8959 ,  G01S7/52038 ,  G01S7/52093 ,  G01S7/52095 ,  G01S15/8963

    摘要： The present invention relates to a method and apparatus providing tissue harmonic imaging using an ultrasound machine. Coded pulses and the phase inverted version of the said coded pulses with time bandwidth greater than 1 are transmitted into the tissue. Backscattered echoes are received and filtered before or after coherent summation. Decoding/compressing of the received echoes of the coded pulses is implemented naturally through the propagation of the specially designed ultrawide band (>80%) waveforms inside tissue and pulse inversion. Costly decoding/compression filter are not necessary.

    摘要翻译： 本发明涉及使用超声波机器提供组织谐波成像的方法和装置。 编码脉冲和时间带宽大于1的所述编码脉冲的相位反转版本被传送到组织中。 反向散射回波在相干求和之前或之后被接收和滤波。 编码脉冲的接收回波的解码/压缩通过在组织内部特别设计的超宽带（> 80％）波形的传播和脉冲反转来自然地实现。 经济的解码/压缩滤波器不是必需的。