-
公开(公告)号：US07443765B2
公开(公告)日：2008-10-28
申请号：US11018238
申请日：2004-12-21
申请人： Kai Erik Thomenius , Rayette Ann Fisher , Robert Gideon Wodnicki , Christopher Robert Hazard , Lowell Scott Smith , Bruno Hans Haider , Kenneth Wayne Rigby
发明人： Kai Erik Thomenius , Rayette Ann Fisher , Robert Gideon Wodnicki , Christopher Robert Hazard , Lowell Scott Smith , Bruno Hans Haider , Kenneth Wayne Rigby
CPC分类号： B06B1/0292 , A61B2562/028 , G01N29/0609 , G01N29/069 , G01N29/245 , G01N2291/0423 , G01N2291/106
摘要： A reconfigurable linear array of sensors (e.g., optical, thermal, pressure, ultrasonic). The reconfigurability allows the size and spacing of the sensor elements to be a function of the distance from the beam center. This feature improves performance for imaging systems having a limited channel count. The improved performance, for applications in which multiple transmit focal zones are employed, arises from the ability to adjust the aperture for a particular depth.
摘要翻译： 传感器的可重构线性阵列（例如光学，热学，压力，超声波）。 可重新配置允许传感器元件的尺寸和间距是与梁中心距离的函数。 该功能提高了具有有限通道数的成像系统的性能。 对于使用多个透射聚焦区域的应用而言，改进的性能来自于为特定深度调整孔径的能力。
-
公开(公告)号：US6074348A
公开(公告)日：2000-06-13
申请号：US65212
申请日：1998-04-23
申请人： Richard Yung Chiao , Anne Lindsay Hall , Kai Erik Thomenius , Michael Joseph Washburn , Kenneth Wayne Rigby
发明人： Richard Yung Chiao , Anne Lindsay Hall , Kai Erik Thomenius , Michael Joseph Washburn , Kenneth Wayne Rigby
CPC分类号： G01S15/8988 , G01S15/8993 , G01S7/52039 , G01S7/52046 , G01S7/5206 , G01S15/8981 , G01S7/52038
摘要： A method and apparatus for ultrasonically imaging flow directly in B mode employs a sequence of pulses transmitted to a transmit focal position, with the backscattered signals from this sequence being filtered to remove echoes from stationary or slow-moving reflectors along the transmit path. The resulting flow signals are superimposed on a conventional B-mode vector and displayed. A B-mode flow image is formed by repeating this procedure for multiple transmit focal positions across the region of interest. The filtering is performed in slow time (along transmit firings) using a high-pass "wall" filter (e.g., an FIR filter) with harmonic image feed-through and optionally B-mode (fundamental) feed-through. The resulting B-mode flow image has low clutter from stationary or slow-moving tissue or vessel walls, high resolution, high frame rate and flow sensitivity in all directions.
摘要翻译： 用于以B模式直接成像流体的方法和装置采用传输到发射焦点位置的脉冲序列，其中来自该序列的反向散射信号被滤波，以沿着发射路径移除来自静止或慢速移动的反射器的回波。 所得到的流量信号叠加在传统的B模式向量上并显示。 通过对感兴趣区域的多个发射焦点位置重复该过程来形成B模式流图像。 使用具有谐波图像馈通和可选的B模式（基本）馈通的高通“壁”滤波器（例如FIR滤波器），在缓慢的时间（沿着发射发射）进行滤波。 所得到的B模式流动图像具有来自静止或缓慢移动的组织或血管壁的低杂波，高分辨率，高帧率和在所有方向上的流动敏感性。
-
公开(公告)号：US20110148682A1
公开(公告)日：2011-06-23
申请号：US12642780
申请日：2009-12-19
IPC分类号： H03M1/12
摘要： Predictive Analog-to-Digital Converter system in one embodiment includes a sampling section producing a sampled analog input signal with a first summer section combining the sampled analog input signal and an analog prediction signal to produce an analog prediction error signal. There is at least one error analog-to-digital convertor digitizing the analog prediction error signal, wherein a digital error signal output from the error analog-to-digital convertor is one of a full bitwidth error signal during an over-range condition else a lower bitwidth error signal. A second summer is coupled to the digital error signal output and a digital prediction signal, and generates a full bitwidth digital output signal. A feedback section is coupled to the digital output signal and providing the digital prediction signal and the analog prediction signal.
摘要翻译： 在一个实施例中，预测模数转换器系统包括产生采样模拟输入信号的采样部分，其中组合采样的模拟输入信号和模拟预测信号的第一加法部分产生模拟预测误差信号。 至少有一个误差模拟数字转换器将模拟预测误差信号数字化，其中从误差模数转换器输出的数字误差信号是在超范围条件期间的完全位宽误差信号之一，否则 较低的位宽错误信号。 第二个夏天耦合到数字误差信号输出和数字预测信号，并产生完整的位宽数字输出信号。 反馈部分耦合到数字输出信号并提供数字预测信号和模拟预测信号。
-
公开(公告)号：US08009072B2
公开(公告)日：2011-08-30
申请号：US12642780
申请日：2009-12-19
摘要： Predictive Analog-to-Digital Converter system in one embodiment includes a sampling section producing a sampled analog input signal with a first summer section combining the sampled analog input signal and an analog prediction signal to produce an analog prediction error signal. There is at least one error analog-to-digital convertor digitizing the analog prediction error signal, wherein a digital error signal output from the error analog-to-digital convertor is one of a full bitwidth error signal during an over-range condition else a lower bitwidth error signal. A second summer is coupled to the digital error signal output and a digital prediction signal, and generates a full bitwidth digital output signal. A feedback section is coupled to the digital output signal and providing the digital prediction signal and the analog prediction signal.
摘要翻译： 在一个实施例中，预测模数转换器系统包括产生采样模拟输入信号的采样部分，其中组合采样的模拟输入信号和模拟预测信号的第一加法部分产生模拟预测误差信号。 至少有一个误差模拟数字转换器将模拟预测误差信号数字化，其中从误差模数转换器输出的数字误差信号是在超范围条件期间的完全位宽误差信号之一，否则 较低的位宽错误信号。 第二个夏天耦合到数字误差信号输出和数字预测信号，并产生完整的位宽数字输出信号。 反馈部分耦合到数字输出信号并提供数字预测信号和模拟预测信号。
-
5.发明授权Method and apparatus for adaptive frame-rate adjustment in ultrasound imaging system 有权超声成像系统中自适应帧率调整的方法和装置公开(公告)号：US06346079B1
公开(公告)日：2002-02-12
申请号：US09577849
申请日：2000-05-25
IPC分类号： A61B0800
CPC分类号： G01S7/52034 , A61B8/06 , A61B8/0833 , G01S7/52066 , G01S15/8979
摘要： A method and an apparatus for dynamically optimizing the frame rate as a function of an estimate of the target motion. First, the target motion is estimated, and then this estimate is used to control the number of firings per frame and/or the degree of frame-averaging. Preferably, the motion of the target is estimated by measuring pixel brightness variations on a frame-to-frame, region-to-region or line-to-line basis. Then the degree of frame-averaging is adjusted as a function of the motion estimate. Alternatively, target motion can be estimated by calculating the Doppler signal. Other imaging parameters, such as number of transmit firings per frame, size of the transmit aperture, and transmit excitation frequency, can be adjusted as a function of estimated target motion.
摘要翻译： 一种用于根据目标运动的估计来动态优化帧速率的方法和装置。 首先，估计目标运动，然后使用该估计来控制每帧的发射次数和/或帧平均的程度。 优选地，通过在帧到帧，区域到区域或线对线的基础上测量像素亮度变化来估计目标的运动。 然后根据运动估计值调整帧平均的程度。 或者，可以通过计算多普勒信号来估计目标运动。 作为估计的目标运动的函数，可以调整其他成像参数，例如每帧的发射发射次数，发射孔径的大小和发射激励频率。
-
公开(公告)号：US08876715B2
公开(公告)日：2014-11-04
申请号：US12950238
申请日：2010-11-19
申请人： Bruno Hans Haider , Kenneth Wayne Rigby , Jean-Francois Gelly , Kjell Kristoffersen , Alexander Sokulin
发明人： Bruno Hans Haider , Kenneth Wayne Rigby , Jean-Francois Gelly , Kjell Kristoffersen , Alexander Sokulin
CPC分类号： G03B42/06 , A61B8/4477 , A61B8/4488 , A61B8/483 , A61B8/5269 , G01S7/5205 , G01S15/8915
摘要： A method for correcting ultrasound data includes acquiring ultrasound data using an ultrasound probe having a plurality of transducer elements associated with a plurality of channels that include conductive pathways and communicating the ultrasound data as received ultrasound signals along the conductive pathways of the channels. The method further includes determining a crosstalk signal that is generated in one or more of the channels by at least one of communication of the received ultrasound signals along the channels or vibration of one or more of the transducer elements. In one aspect, the method also includes modifying one or more subsequently acquired ultrasound signals that are communicated along the channels based on the crosstalk signal.
摘要翻译： 用于校正超声数据的方法包括使用具有与包括导电路径的多个通道相关联的多个换能器元件的超声探头获取超声数据，并且将超声波数据作为沿着通道的导电路径的接收超声信号进行通信。 该方法还包括通过沿着通道的一个或多个换能器元件的通道的通信或振动的通信中的至少一个来确定在一个或多个通道中产生的串扰信号。 在一个方面，该方法还包括基于串扰信号修改沿着信道传送的一个或多个随后获取的超声信号。
-
公开(公告)号：US20120130246A1
公开(公告)日：2012-05-24
申请号：US12950238
申请日：2010-11-19
申请人： BRUNO HANS HAIDER , Kenneth Wayne Rigby , Jean-Francois Gelly , Kjell Kristoffersen , Alexander Sokulin
发明人： BRUNO HANS HAIDER , Kenneth Wayne Rigby , Jean-Francois Gelly , Kjell Kristoffersen , Alexander Sokulin
IPC分类号： A61B8/14
CPC分类号： G03B42/06 , A61B8/4477 , A61B8/4488 , A61B8/483 , A61B8/5269 , G01S7/5205 , G01S15/8915
摘要： A method for correcting ultrasound data includes acquiring ultrasound data using an ultrasound probe having a plurality of transducer elements associated with a plurality of channels that include conductive pathways and communicating the ultrasound data as received ultrasound signals along the conductive pathways of the channels. The method further includes determining a crosstalk signal that is generated in one or more of the channels by at least one of communication of the received ultrasound signals along the channels or vibration of one or more of the transducer elements. In one aspect, the method also includes modifying one or more subsequently acquired ultrasound signals that are communicated along the channels based on the crosstalk signal.
摘要翻译： 用于校正超声数据的方法包括使用具有与包括导电路径的多个通道相关联的多个换能器元件的超声探头获取超声数据，并且将超声波数据作为沿着通道的导电路径的接收超声信号进行通信。 该方法还包括通过沿着通道的一个或多个换能器元件的通道的通信或振动的通信中的至少一个来确定在一个或多个通道中产生的串扰信号。 在一个方面，该方法还包括基于串扰信号修改沿着信道传送的一个或多个随后获取的超声信号。
-
公开(公告)号：US09364194B2
公开(公告)日：2016-06-14
申请号：US12212903
申请日：2008-09-18
CPC分类号： A61B8/00 , A61B5/415 , A61B5/418 , A61B8/485 , G01S7/52022 , G01S7/52036 , G01S7/52042 , G01S15/102
摘要： An ultrasound imaging method for detecting a target region of altered stiffness is provided. The method comprises delivering at least one reference pulse to the target region to detect an initial position of the target region, delivering a first pushing pulse having a first value of a variable parameter to a target region to displace the target region to a first displaced position, delivering a first tracking pulse to detect the first displaced position of the target region, delivering a second pushing pulse having a second value of the variable parameter to the target region to displace the target region to a second displaced position, and delivering a second tracking pulse to detect the second displaced position of the target region. An ultrasound imaging system for detecting a region of altered stiffness is also provided.
摘要翻译： 提供了一种用于检测刚度变化的目标区域的超声成像方法。 该方法包括将至少一个参考脉冲输送到目标区域以检测目标区域的初始位置，将具有可变参数的第一值的第一推动脉冲传送到目标区域，以将目标区域移位到第一位移位置 传送第一跟踪脉冲以检测目标区域的第一位移位置，将具有可变参数的第二值的第二推送脉冲传送到目标区域以将目标区域移位到第二位移位置，并且传递第二跟踪 脉冲以检测目标区域的第二位移位置。 还提供了用于检测刚度变化区域的超声成像系统。
-
公开(公告)号：US20100069751A1
公开(公告)日：2010-03-18
申请号：US12212903
申请日：2008-09-18
IPC分类号： A61B8/00
CPC分类号： A61B8/00 , A61B5/415 , A61B5/418 , A61B8/485 , G01S7/52022 , G01S7/52036 , G01S7/52042 , G01S15/102
摘要： An ultrasound imaging method for detecting a target region of altered stiffness is provided. The method comprises delivering at least one reference pulse to the target region to detect an initial position of the target region, delivering a first pushing pulse having a first value of a variable parameter to a target region to displace the target region to a first displaced position, delivering a first tracking pulse to detect the first displaced position of the target region, delivering a second pushing pulse having a second value of the variable parameter to the target region to displace the target region to a second displaced position, and delivering a second tracking pulse to detect the second displaced position of the target region. An ultrasound imaging system for detecting a region of altered stiffness is also provided.
摘要翻译： 提供了一种用于检测刚度变化的目标区域的超声成像方法。 该方法包括将至少一个参考脉冲输送到目标区域以检测目标区域的初始位置，将具有可变参数的第一值的第一推动脉冲传送到目标区域，以将目标区域移位到第一位移位置 传送第一跟踪脉冲以检测目标区域的第一位移位置，将具有可变参数的第二值的第二推送脉冲传送到目标区域以将目标区域移位到第二位移位置，并且传递第二跟踪 脉冲以检测目标区域的第二位移位置。 还提供了用于检测刚度变化区域的超声成像系统。
-
10.发明授权公开(公告)号：US08494791B2
公开(公告)日：2013-07-23
申请号：US12970676
申请日：2010-12-16
CPC分类号： G01S7/52022 , A61B8/469 , A61B8/485 , A61B2090/378 , G01S7/52036 , G01S15/8977
摘要： Methods and systems for improving correlation of shear displacement waveforms are presented. The method includes delivering one or more reference pulses to a plurality of target regions to detect corresponding initial positions. Further, a plurality of pushing pulse segments are delivered to one or more pushing locations, where one or more parameters corresponding to the plurality of pushing pulse segments are adapted for generating a shear displacement waveform with a desired wave shape. Additionally, one or more tracking pulses may be delivered to the plurality of target regions for detecting displacements of at least a subset of the target regions as a function of time. Particularly, the displacements are determined as time samples of the shear displacement waveform. Subsequently, a shift between the shear displacement waveform detected at least two different target regions in the subset of the plurality of target regions is detected.
摘要翻译： 提出了改善剪切位移波形相关性的方法和系统。 该方法包括将一个或多个参考脉冲递送到多个目标区域以检测对应的初始位置。 此外，多个推压脉冲段被传送到一个或多个按压位置，其中对应于多个推压脉冲段的一个或多个参数适于产生具有期望波形的剪切位移波形。 另外，可以将一个或多个跟踪脉冲传送到多个目标区域，以便根据时间来检测目标区域的至少一个子集的位移。 特别地，位移被确定为剪切位移波形的时间样本。 随后，检测到检测到多个目标区域的子集中的至少两个不同目标区域的剪切位移波形之间的偏移。
-
-
-
-
-
-
-
-
-
搜索结果
25 条记录 (耗时 0.047 秒)