公开(公告)号：US07311667B2

公开(公告)日：2007-12-25

申请号：US10238523

申请日：2002-09-09

申请人： Anming He Cai ,  Lewis J. Thomas

发明人： Anming He Cai ,  Lewis J. Thomas

IPC分类号： A61B8/00

CPC分类号： B06B1/0629

摘要： Transducer with different array configurations and methods of using the transducers are provided. An electrode layer on one side of a transducer device defines a one-dimensional array of elements. An electrode layer on an opposite side of the transducer device defines a multi-dimensional array. For example, one transducer device may be used for both two-dimensional imaging and three-dimensional imaging in response to the one-dimensional array and multi-dimensional array electrode configurations. Real time three-dimensional imaging and two-dimensional imaging may be provided with a single transducer. As another example, elements defined by one electrode configuration have a different surface area than elements defined by another electrode configuration. The different configurations on opposite sides of the transducer devices may be a same type (e.g. both one-dimensional arrays) or different types.

摘要翻译： 提供具有不同阵列配置的传感器和使用换能器的方法。 在换能器装置的一侧上的电极层限定了一维的元件阵列。 在换能器装置的相对侧上的电极层限定多维阵列。 例如，响应于一维阵列和多维阵列电极配置，一个换能器装置可用于二维成像和三维成像。 可以提供实时三维成像和二维成像单个换能器。 作为另一示例，由一个电极配置限定的元件具有与由另一电极配置限定的元件不同的表面积。 换能器装置的相对侧上的不同配置可以是相同类型（例如，一维阵列）或不同类型。

公开(公告)号：US07946988B2

公开(公告)日：2011-05-24

申请号：US11302567

申请日：2005-12-13

申请人： Anming He Cai ,  Lewis J. Thomas

发明人： Anming He Cai ,  Lewis J. Thomas

IPC分类号： A61B8/00

CPC分类号： A61B8/14 ,  A61B8/06 ,  A61B8/13 ,  A61B8/481

摘要： Contrast agent destruction transmissions have reduced biological effect in medical diagnostic ultrasound. Ramping-up amplitude and/or ramping-down frequency reduce biological effect. The amplitude ramps up linearly or non-linearly. The change in amplitude or frequency occurs over a single waveform or over a sequence of separate transmissions. An envelope of the single waveform or the sequence of separate transmissions has a non-uniform, asymmetrical, symmetrical, rectangular or other shape. For example, the frequency ramp-down is provided with a non-Gaussian envelope. The amplitude ramp-up or frequency ramp-down is a progressively increasing destructive characteristic or ability, destroying contrast agent at different regions relative to focal regions with a minimum of acoustic energy.

摘要翻译： 对比剂破坏传播在医学诊断超声中具有降低的生物学效应。 上升幅度和/或下降频率降低生物效应。 幅度线性或非线性地上升。 振幅或频率的变化发生在单个波形或单独传输序列上。 单个波形的包络或单独传输的序列具有不均匀，不对称，对称，矩形或其他形状。 例如，频率斜降具有非高斯包络。 幅度上升或频率斜降是逐渐增加的破坏性特征或能力，破坏相对于具有最小声能的焦点区域的不同区域处的造影剂。

公开(公告)号：US09465101B2

公开(公告)日：2016-10-11

申请号：US11099802

申请日：2005-04-05

申请人： Kutay F. Ustuner ,  Lewis J. Thomas ,  D-L Donald Liu

发明人： Kutay F. Ustuner ,  Lewis J. Thomas ,  D-L Donald Liu

IPC分类号： G01N29/00 ,  G01S15/00 ,  G01S7/52 ,  G01S15/89 ,  G10K11/34

CPC分类号： G01S7/52049 ,  G01S7/52046 ,  G01S7/52085 ,  G01S7/5209 ,  G01S15/8915 ,  G01S15/8925 ,  G01S15/8959 ,  G01S15/8993 ,  G01S15/8997 ,  G10K11/346

摘要： Aberration estimation uses cross correlation of receive-focused transmit element data. A set of sequentially fired broad transmit beams insonify an object from different steering angles. Each transmit beam emanates from an actual or a virtual transmit element. For every firing, a receive beamformer forms a transmit element image of the insonified region by focusing the received signals. An estimator estimates aberration by cross correlating or comparing the transmit element images. Where a virtual transmit element is used, the virtual transmit element images are back propagated to an actual transmit element position before aberration estimation. The estimations are used to form corrected transmit element images which are then summed pre-detection to form a high-resolution synthetic transmit aperture. Alternatively, the estimations are used to improve conventional focused-transmit imaging.

公开(公告)号：US5445156A

公开(公告)日：1995-08-29

申请号：US333184

申请日：1994-11-02

申请人： Christopher M. W. Daft ,  Anne L. Hall ,  Sharbel E. Noujaim ,  Lewis J. Thomas ,  Kenneth B. Welles, II

发明人： Christopher M. W. Daft ,  Anne L. Hall ,  Sharbel E. Noujaim ,  Lewis J. Thomas ,  Kenneth B. Welles, II

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

CPC分类号： G01S7/52071 ,  G01S15/8979 ,  G01S7/52026 ,  G01S7/52033

摘要： A time domain technique for implementing an adaptive wall filter improves imaging of low-velocity blood flow by removing signals associated with slowly moving tissue. Adaptive wall filtering is performed by estimating wall velocity and bandwidth, and then filtering the basebanded data with a complex time domain notch filter. The wall velocity estimate determines the center frequency of a wall signal while the wall variance estimate determines the wall signal bandwidth. The complex filter coefficients selected are those which will center the complex notch filter on the wall center frequency, and which will set the filter cutoff frequencies (measured from this center frequency) to match the wall signal bandwidth.

摘要翻译： 用于实现自适应壁滤器的时域技术通过去除与缓慢移动的组织相关的信号来改善低速血流的成像。 通过估计墙体速度和带宽进行自适应壁面滤波，然后用复杂时域陷波滤波器对基带数据进行滤波。 墙壁速度估计确定墙壁信号的中心频率，而墙壁方差估计确定壁信号带宽。 选择的复杂滤波器系数是将复杂陷波滤波器置于壁中心频率上的复数滤波器系数，并且将设置滤波器截止频率（从该中心频率测量）以匹配壁信号带宽。

公开(公告)号：US5349524A

公开(公告)日：1994-09-20

申请号：US1998

申请日：1993-01-08

申请人： Christopher M. W. Daft ,  Anne L. Hall ,  Sharbel E. Noujaim ,  Lewis J. Thomas ,  Kenneth B. Welles, II

发明人： Christopher M. W. Daft ,  Anne L. Hall ,  Sharbel E. Noujaim ,  Lewis J. Thomas ,  Kenneth B. Welles, II

IPC分类号： G01S7/52 ,  G01S15/52 ,  G01S15/58 ,  G01S15/89 ,  G01F1/66 ,  A61B8/00 ,  G06F15/66

CPC分类号： G01S7/52071 ,  G01S15/8981

摘要： An ultrasonic imaging system for displaying color flow images includes a receiver which demodulates ultrasonic echo signals received by a transducer array and dynamically focuses the baseband echo signals. A color flow processor includes a time domain adaptive wall filter which automatically adjusts to changes in frequency and bandwidth of the wall signal components in the focused baseband echo signals. The mean frequency of the resulting filtered baseband echo signals is used to indicate velocity of flowing reflectors and to control color in the displayed image.

摘要翻译： 用于显示彩色流图像的超声波成像系统包括：解调由换能器阵列接收的超声回波信号的接收器，并且动态地聚焦基带回波信号。 色流处理器包括时域自适应壁滤波器，其自动调整聚焦基带回波信号中的壁信号分量的频率和带宽的变化。 所得滤波的基带回波信号的平均频率用于指示流动反射器的速度并控制所显示的图像中的颜色。

公开(公告)号：US06517489B1

公开(公告)日：2003-02-11

申请号：US09839709

申请日：2001-04-19

申请人： Patrick J. Phillips ,  Kutay F. Ustuner ,  Charles E. Bradley ,  Lewis J. Thomas ,  David J. Napolitano

发明人： Patrick J. Phillips ,  Kutay F. Ustuner ,  Charles E. Bradley ,  Lewis J. Thomas ,  David J. Napolitano

IPC分类号： A61B814

CPC分类号： G01S7/52026 ,  G01S7/52049 ,  G01S15/8909 ,  G01S15/8959

摘要： A medical ultrasonic imaging method uses transmitted plane waves, or transmitted wavefronts that are substantially planar, to improve contrast agent imaging by generating peak pressures that are more uniform over depth. Depending on the type of contrast agent, the returned frequencies of interest, and the desired strength of the non-linear response, multiple wavefronts can be generated at substantially the same time to increase peak pressures.

摘要翻译： 医疗超声成像方法使用透射平面波或基本上平面的透射波前，通过产生在深度上更均匀的峰值压力来改善造影剂成像。 根据造影剂的类型，返回的感兴趣的频率和非线性响应的期望强度，可以在基本相同的时间产生多个波前以增加峰值压力。

公开(公告)号：US06413218B1

公开(公告)日：2002-07-02

申请号：US09501443

申请日：2000-02-10

申请人： John W. Allison ,  Lewis J. Thomas ,  Sriram Krishnan ,  Gregory L. Holley

发明人： John W. Allison ,  Lewis J. Thomas ,  Sriram Krishnan ,  Gregory L. Holley

IPC分类号： A61B800

CPC分类号： A61B8/4281 ,  A61B8/461 ,  A61B8/469 ,  A61B8/56 ,  G01S7/52036 ,  G01S7/5205 ,  G01S7/52074 ,  G01S7/52076 ,  G01S7/52084

摘要： The preferred embodiments described herein provide a medical diagnostic ultrasound imaging system and method for determining an acoustic output parameter of a transmitted ultrasonic beam. In one preferred embodiment, the ultrasound system determines an acoustic output parameter of a transmitted ultrasonic beam in a user-selected region. In another preferred embodiment, the ultrasound system achieves a specified acoustic output parameter of a transmitted ultrasonic beam in a selected region by automatically adjusting an operating parameter of the ultrasound imaging system. In yet another preferred embodiment, a region is selected in the ultrasound image that does not contain a peak acoustic output parameter of a transmitted ultrasonic beam. The system then determines an acoustic output parameter of the transmitted ultrasonic beam in that region and provides an indication of the determined acoustic output parameter.

摘要翻译： 本文描述的优选实施例提供了用于确定发射超声波束的声输出参数的医学诊断超声成像系统和方法。 在一个优选实施例中，超声系统在用户选择的区域中确定发射的超声波束的声输出参数。 在另一个优选实施例中，超声系统通过自动调节超声成像系统的操作参数来实现选定区域中的发射超声波束的指定声输出参数。 在另一优选实施例中，在超声波图像中选择不包含发射超声波束的峰值声输出参数的区域。 然后，该系统确定该区域中发射的超声波束的声输出参数，并提供所确定的声输出参数的指示。

公开(公告)号：US07921717B2

公开(公告)日：2011-04-12

申请号：US11029046

申请日：2005-01-03

申请人： John I. Jackson ,  Lewis J. Thomas ,  Constantine Simopoulos

发明人： John I. Jackson ,  Lewis J. Thomas ,  Constantine Simopoulos

IPC分类号： G01N29/30 ,  G01N29/06 ,  A61B8/14

CPC分类号： A61B8/00 ,  G03B42/06

摘要： Disclosed are a system and method of selecting one or more operational parameters of an ultrasonic imaging system. In particular, methods and means are disclosed for automatically or semi-automatically determining a best operating frequency, or for determining whether a system should operate in a fundamental imaging mode or a harmonic imaging mode.

摘要翻译： 公开了一种选择超声波成像系统的一个或多个操作参数的系统和方法。 特别地，公开了用于自动或半自动地确定最佳操作频率或用于确定系统是否应当在基本成像模式或谐波成像模式中操作的方法和装置。

公开(公告)号：US20080009722A1

公开(公告)日：2008-01-10

申请号：US11527286

申请日：2006-09-25

申请人： Constantine Simopoulos ,  Lewis J. Thomas ,  Shaohua Kevin Zhou ,  Dorin Comaniciu ,  Bogdan Georgescu

发明人： Constantine Simopoulos ,  Lewis J. Thomas ,  Shaohua Kevin Zhou ,  Dorin Comaniciu ,  Bogdan Georgescu

IPC分类号： A61B8/00

CPC分类号： G01S7/52036 ,  A61B8/08 ,  A61B8/0883 ,  A61B8/0891 ,  A61B8/14 ,  A61B8/483 ,  A61B8/488 ,  A61B8/523 ,  G01S7/52068 ,  G01S7/52088 ,  G01S15/8993

摘要： During scanning or in real-time with acquisition of ultrasound data, a plurality of images is generated corresponding to a plurality of different planes in a volume. The volume scan data is searched by a processor to identify desired views. Multiple standard or predetermined views are generated based on plane positioning within the volume by the processor. Multi-planar reconstruction, guided by the processor, allows for real-time imaging of multiple views at a substantially same time. The images corresponding to the identified views are generated independent of the position of the transducer. The planes may be positioned in real-time using a pyramid data structure of coarse and fine data sets.

摘要翻译： 在扫描期间或通过获取超声数据实时地生成与体积中的多个不同平面对应的多个图像。 卷处理器搜索卷扫描数据以识别所需视图。 基于处理器在卷内的平面定位产生多个标准或预定视图。 由处理器引导的多平面重建允许在大致相同的时间对多个视图进行实时成像。 与所识别的视图相对应的图像独立于换能器的位置产生。 可以使用粗略和精细数据集的金字塔数据结构实时定位平面。

公开(公告)号：US06551246B1

公开(公告)日：2003-04-22

申请号：US09839890

申请日：2001-04-19

申请人： Kutay F. Ustuner ,  Charles E. Bradley ,  Lewis J. Thomas ,  Ching-Hua Chou ,  David J. Napolitano ,  Patrick J. Phillips

发明人： Kutay F. Ustuner ,  Charles E. Bradley ,  Lewis J. Thomas ,  Ching-Hua Chou ,  David J. Napolitano ,  Patrick J. Phillips

IPC分类号： A61B800

CPC分类号： G01S7/52026 ,  G01S7/52049 ,  G01S15/8909 ,  G01S15/8959 ,  G01S15/8993

摘要： 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.

摘要翻译： 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。