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71. 发明授权

US06241677B1 Method and apparatus for ultrasound image quantification 有权
公开(公告)号：US06241677B1
公开(公告)日：2001-06-05
申请号：US09478662
申请日：2000-01-06
申请人： Ismayil M. Guracar , Samuel H. Maslak , John W. Allison , Paul E. Chandler , John I. Jackson , Arvind Jain , Laurence S. McCabe
发明人： Ismayil M. Guracar , Samuel H. Maslak , John W. Allison , Paul E. Chandler , John I. Jackson , Arvind Jain , Laurence S. McCabe
IPC分类号： A61B800
CPC分类号： G01S15/8988 , A61B8/08 , G01S7/52023 , G01S7/52025 , G01S7/52034 , G01S7/52038 , G01S7/52063 , G01S7/52071 , G01S15/895 , G01S15/8979
摘要： A method and apparatus for quantifying and displaying ultrasound signals in an ultrasonic system are provided. A first signal value for each of at least one spatial location in a region of interest is acquired at a first time, and the signal values are summed to obtain a first surface integral value. A second signal value for each of said at least one spatial location in said region of interest is acquired at a second time, and the second signal values are summed to obtain a second surface integral value. The first surface integral value is summed with the second surface integral value to obtain a time based integral. The time based integral is displayed. Other quantities based on any of various ultrasound parameters, such as Doppler energy, Doppler velocity and B-mode intensity, are calculated and displayed as quantities or as waveforms as a function of time. Furthermore, various comparisons of quantities and waveforms are provided. Image plane data or other ultrasound data are used in the calculations. Finally, a histogram data structure is provided to aid calculation of the various quantities.

72. 发明授权

US06193664B1 Method and apparatus for ultrasound image quantification 有权
标题翻译：用于超声图像定量的方法和装置
公开(公告)号：US06193664B1
公开(公告)日：2001-02-27
申请号：US09245421
申请日：1999-02-04
申请人： Ismayil M. Guracar , Samuel H. Maslak , John W. Allison , Paul E. Chandler , John I. Jackson , Arvind Jain , Laurence S. McCabe
发明人： Ismayil M. Guracar , Samuel H. Maslak , John W. Allison , Paul E. Chandler , John I. Jackson , Arvind Jain , Laurence S. McCabe
IPC分类号： A61B800
CPC分类号： G01S15/8988 , A61B8/08 , G01S7/52023 , G01S7/52025 , G01S7/52034 , G01S7/52038 , G01S7/52063 , G01S7/52071 , G01S15/895 , G01S15/8979
摘要： A method and apparatus for quantifying and displaying ultrasound signals in an ultrasonic system are provided. A first signal value for each of at least one spatial location in a region of interest is acquired at a first time, and the signal values are summed to obtain a first surface integral value. A second signal value for each of said at least one spatial location in said region of interest is acquired at a second time, and the second signal values are summed to obtain a second surface integral value. The first surface integral value is summed with the second surface integral value to obtain a time based integral. The time based integral is displayed. Other quantities based on any of various ultrasound parameters, such as Doppler energy, Doppler velocity and B-mode intensity, are calculated and displayed as quantities or as waveforms as a function of time. Furthermore, various comparisons of quantities and waveforms are provided. Image plane data or other ultrasound data are used in the calculations. Finally, a histogram data structure is provided to aid calculation of the various quantities.
摘要翻译：提供了一种在超声波系统中量化和显示超声信号的方法和装置。在第一时间获取感兴趣区域中的至少一个空间位置中的每一个的第一信号值，并且将信号值相加以获得第一表面积分值。在第二时间获取所述感兴趣区域中的所述至少一个空间位置中的每一个的第二信号值，并且将第二信号值求和以获得第二表面积分值。第一表面积分值与第二表面积分值相加以获得基于时间的积分。显示基于时间的积分。基于各种超声参数（诸如多普勒能量，多普勒速度和B模式强度）中的任一种的其他量被计算并显示为数量或作为时间的函数的波形。此外，还提供了数量和波形的各种比较。在计算中使用图像平面数据或其他超声数据。最后，提供直方图数据结构以辅助各种量的计算。

73. 发明授权

US6120446A Diagnostic medical ultrasonic imaging system and method with adaptive gain 有权
标题翻译：诊断医学超声成像系统和自适应增益方法
公开(公告)号：US6120446A
公开(公告)日：2000-09-19
申请号：US213666
申请日：1998-12-17
申请人： Ting-Lan Ji , Ismayil M. Guracar
发明人： Ting-Lan Ji , Ismayil M. Guracar
IPC分类号： G01N29/22 , G01N29/24 , G01S7/52 , A61B8/00 , G01N29/04
CPC分类号： G01S7/52033 , G01N29/221 , G01N29/2456 , G01N2291/02475 , G01N2291/106 , G01S7/5205
摘要： A diagnostic medical ultrasonic imaging system includes a gain processor that varies the receive signal path gain as a function of the signal to noise ratio of the echo signal. Background noise is either acquired or modeled in real time using currently prevailing imaging parameters, and acquired echo signals are compared with the acquired or modeled background noise values. The receive gain is controlled as a function of this comparison to improve the signal-to-noise ratio, and to reduce or prevent the amplification of echo signals that are not greater than the background noise level.
摘要翻译：诊断医学超声成像系统包括增益处理器，该增益处理器根据回波信号的信噪比改变接收信号路径增益。使用当前主要的成像参数实时获取或建模背景噪声，并将采集的回波信号与所获取或建模的背景噪声值进行比较。作为该比较的函数来控制接收增益，以提高信噪比，并且减少或防止不大于背景噪声电平的回波信号的放大。

74. 发明授权

US6110118A Method and apparatus for ultrasound image quantification 有权
公开(公告)号：US6110118A
公开(公告)日：2000-08-29
申请号：US245422
申请日：1999-02-04
申请人： Ismayil M. Guracar , Samuel H. Maslak , John W. Allison , Paul E. Chandler , John I. Jackson , Arvind Jain , Laurence S. McCabe
发明人： Ismayil M. Guracar , Samuel H. Maslak , John W. Allison , Paul E. Chandler , John I. Jackson , Arvind Jain , Laurence S. McCabe
IPC分类号： A61B8/08 , G01S7/52 , G01S15/89 , A61B8/00
CPC分类号： G01S15/8988 , A61B8/08 , G01S15/895 , G01S15/8979 , G01S7/52023 , G01S7/52034 , G01S7/52063 , G01S7/52071 , G01S7/52025 , G01S7/52038
摘要： A method and apparatus for quantifying and displaying ultrasound signals in an ultrasonic system are provided. A first signal value for each of at least one spatial location in a region of interest is acquired at a first time, and the signal values are summed to obtain a first surface integral value. A second signal value for each of said at least one spatial location in said region of interest is acquired at a second time, and the second signal values are summed to obtain a second surface integral value. The first surface integral value is summed with the second surface integral value to obtain a time based integral. The time based integral is displayed. Other quantities based on any of various ultrasound parameters, such as Doppler energy, Doppler velocity and B-mode intensity, are calculated and displayed as quantities or as waveforms as a function of time. Furthermore, various comparisons of quantities and waveforms are provided. Image plane data or other ultrasound data are used in the calculations. Finally, a histogram data structure is provided to aid calculation of the various quantities.

75. 发明授权

US6030344A Methods and apparatus for ultrasound image quantification 失效
公开(公告)号：US6030344A
公开(公告)日：2000-02-29
申请号：US916590
申请日：1997-08-22
申请人： Ismayil M. Guracar , Samuel H. Maslak , John W. Allison , Paul E. Chandler , John I. Jackson , Arvind Jain , Laurence S. McCabe
发明人： Ismayil M. Guracar , Samuel H. Maslak , John W. Allison , Paul E. Chandler , John I. Jackson , Arvind Jain , Laurence S. McCabe
IPC分类号： A61B8/08 , G01S7/52 , G01S15/89 , A61B8/00
CPC分类号： A61B8/08 , G01S15/895 , G01S15/8979 , G01S15/8988 , G01S7/52023 , G01S7/52034 , G01S7/52063 , G01S7/52071 , G01S7/52025 , G01S7/52038
摘要： A method and apparatus for quantifying and displaying ultrasound signals in an ultrasonic system are provided. A first signal value for each of at least one spatial location in a region of interest is acquired at a first time, and the signal values are summed to obtain a first surface integral value. A second signal value for each of said at least one spatial location in said region of interest is acquired at a second time, and the second signal values are summed to obtain a second surface integral value. The first surface integral value is summed with the second surface integral value to obtain a time based integral. The time based integral is displayed. Other quantities based on any of various ultrasound parameters, such as Doppler energy, Doppler velocity and B-mode intensity, are calculated and displayed as quantities or as waveforms as a function of time. Furthermore, various comparisons of quantities and waveforms are provided. Image plane data or other ultrasound data are used in the calculations. Finally, a histogram data structure is provided to aid calculation of the various quantities.

76. 发明授权

US5788635A Adaptive persistence processing 失效
标题翻译：自适应持久性处理
公开(公告)号：US5788635A
公开(公告)日：1998-08-04
申请号：US783928
申请日：1997-01-17
申请人： J. Nelson Wright , Jay Sterling Plugge , D. Grant Fash, III , Donald R. Langdon , David J. Finger , Brian M. Normand , Ismayil M. Guracar
发明人： J. Nelson Wright , Jay Sterling Plugge , D. Grant Fash, III , Donald R. Langdon , David J. Finger , Brian M. Normand , Ismayil M. Guracar
IPC分类号： G01S7/52 , H03H21/00 , A61B8/00
CPC分类号： H03H21/0012 , G01S7/52026 , G01S7/52046 , G01S7/52034 , H03H2021/0079
摘要： The invention provides a method and system for adaptive persistence processing in an ultrasound imaging system. Acoustic signals are temporally filtered using an adaptive persistence filter, having a recursive stage followed by a nonrecursive stage. A set of filtering coefficients for each stage are supplied by a look-up table in a memory, addressed or indexed in response to a plurality of input or output pixel values. The look-up table may therefore embody any selected function of its input variables. The input variables for the look-up table function are a current input pixel value X.sub.n and a previous intermediate pixel value W.sub.n-1, and the function embodied by the look-up table includes a relative first difference function for selecting a filter coefficient. A recursive filtering coefficient .alpha. is held constant over time, while a nonrecursive filtering coefficient .gamma.is adjusted dynamically in response to the current input pixel value X.sub.n and the previous intermediate pixel value W.sub.n-1. The non-recursive stage filter has a frequency response that attenuates higher frequency components without attenuating a broad range of lower frequency components, relative to the recursive stage frequency response. The step response or settling time of the non-recursive stage filter always spans one frame interval, independent of the nonrecursive filtering coefficient, while the step response or settling time for the recursive stage filter is generally longer and is dependent on the recursive filtering coefficient.
摘要翻译：本发明提供了一种用于超声成像系统中的自适应持久性处理的方法和系统。使用自适应持续性滤波器对声信号进行时间滤波，具有递归阶段，随后是非递归阶段。每个级的一组滤波系数由查询表提供在存储器中，响应于多个输入或输出像素值寻址或索引。因此，查找表可以包含其输入变量的任何所选函数。用于查找表函数的输入变量是当前输入像素值Xn和先前中间像素值Wn-1，由查找表体现的功能包括用于选择滤波器系数的相对第一差分函数。递归滤波系数α随时间保持恒定，而响应于当前输入像素值Xn和先前的中间像素值Wn-1，动态地调整非递归滤波系数γ。相对于递归级频率响应，非递归级滤波器具有频率响应，该频率响应衰减较高频率分量而不衰减宽范围的较低频率分量。非递归级滤波器的阶跃响应或建立时间总是跨越一帧间隔，与非递归滤波系数无关，而递归阶段滤波器的阶跃响应或建立时间通常较长，并且取决于递归滤波系数。

77. 发明授权

US5779640A Ultrasound multi-beam distortion correction system and method 失效
标题翻译：超声波多波束失真校正系统及方法
公开(公告)号：US5779640A
公开(公告)日：1998-07-14
申请号：US638384
申请日：1996-04-26
申请人： Gregory L. Holley , Ismayil M. Guracar
发明人： Gregory L. Holley , Ismayil M. Guracar
IPC分类号： G01S7/52 , G01S15/89 , A61B8/00
CPC分类号： G01S7/52046 , G01S15/8979
摘要： An ultrasound imaging system of the type having a receive beamformer that acquires multiple receive beams from each respective transmit beam includes an azimuthal spatial filter which operates to correct for geometric distortions typically associated with such multi-beam imaging systems. This azimuthal spatial filter is responsive to input signals derived from the receive beams to generate a corrected signal output as a function of a selected set of receive beams and a set of filter weights. The filter weights are caused to vary in accordance with the azimuthal coordinates of the selected receive beams in order to improve performance.
摘要翻译：具有从每个相应发射波束获取多个接收波束的接收波束形成器的类型的超声成像系统包括方位空间滤波器，其操作以校正通常与这种多波束成像系统相关联的几何失真。该方位空间滤波器响应于从接收波束导出的输入信号，以产生作为所选择的一组接收波束和一组滤波器权重的函数的校正信号输出。根据所选择的接收波束的方位坐标，使滤波器权重发生变化，以提高性能。

78. 发明授权

US5595179A Adaptive persistence processing 失效
标题翻译：自适应持久性处理
公开(公告)号：US5595179A
公开(公告)日：1997-01-21
申请号：US433217
申请日：1995-05-02
申请人： J. Nelson Wright , Jay S. Plugge , D. Grant Fash, III , Donald R. Langdon , David J. Finger , Brian M. Normand , Ismayil M. Guracar
发明人： J. Nelson Wright , Jay S. Plugge , D. Grant Fash, III , Donald R. Langdon , David J. Finger , Brian M. Normand , Ismayil M. Guracar
IPC分类号： G01S7/52 , H03H21/00 , A61B8/00
CPC分类号： H03H21/0012 , G01S7/52026 , G01S7/52046 , G01S7/52034 , H03H2021/0079
摘要： The invention provides a method and system for adaptive persistence processing in an ultrasound imaging system. Acoustic signals are temporally filtered using an adaptive persistence filter, having a recursive stage followed by a nonrecursive stage. A set of filtering coefficients for each stage are supplied by a look-up table in a memory, addressed or indexed in response to a plurality of input or output pixel values. The look-up table may therefore embody any selected function of its input variables. The input variables for the look-up table function are a current input pixel value X.sub.n and a previous intermediate pixel value W.sub.n-1, and the function embodied by the look-up table includes a relative first difference function for selecting a filter coefficient. A recursive filtering coefficient .alpha. is held constant over time, while a nonrecursive filtering coefficient .gamma. is adjusted dynamically in response to the current input pixel value X.sub.n and the previous intermediate pixel value W.sub.n-1. The nonrecursive stage filter has a frequency response that attenuates higher frequency components without attenuating a broad range of lower frequency components, relative to the recursive stage frequency response. The step response or settling time of the nonrecursive stage filter always spans one frame interval, independent of the nonrecursive filtering coefficient, while the step response or settling time for the recursive stage filter is generally longer and is dependent on the recursive filtering coefficient.
摘要翻译：本发明提供了一种用于超声成像系统中的自适应持久性处理的方法和系统。使用自适应持续性滤波器对声信号进行时间滤波，具有递归阶段，随后是非递归阶段。每个级的一组滤波系数由查询表提供在存储器中，响应于多个输入或输出像素值寻址或索引。因此，查找表可以包含其输入变量的任何所选函数。用于查找表函数的输入变量是当前输入像素值Xn和先前中间像素值Wn-1，由查找表体现的功能包括用于选择滤波器系数的相对第一差分函数。递归滤波系数α随时间保持恒定，而响应于当前输入像素值Xn和先前的中间像素值Wn-1，动态地调整非递归滤波系数γ。非递归级滤波器具有频率响应，其相对于递归级频率响应衰减较高频率分量而不衰减宽范围的较低频率分量。非递归级滤波器的阶跃响应或建立时间总是跨越一帧间隔，与非递归滤波系数无关，而递归阶段滤波器的阶跃响应或建立时间通常较长，并且取决于递归滤波系数。

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