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公开(公告)号：US10390797B2
公开(公告)日：2019-08-27
申请号：US13995522
申请日：2011-12-19
申请人： Yan Shi , Hua Xie , Roy Peterson , Jean-Luc Robert , Vijay Shamdasani
发明人： Yan Shi , Hua Xie , Roy Peterson , Jean-Luc Robert , Vijay Shamdasani
摘要： A device and a method for computing a weighted-average-based position of a shear wave in a temporal domain based on a sampling of shear wave displacements along a propagation path of the shear wave. The weighted-average-based position is, for example, by displacement observed at a plurality of times that correspond to sampling, and represents a time of arrival of the shear wave at a location being sampled along the propagation path. Further, times of arrival of the shear wave at respective locations along the propagation path are functionally related to known inter-location distances to derive shear-wave group velocity. The derived shear-wave group velocity serves as an input into algorithms for estimating a shear elasticity of a medium, such as a body tissue, for purposes of a clinical diagnosis and therapy assessment.
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公开(公告)号：US09496604B2
公开(公告)日：2016-11-15
申请号：US13991191
申请日：2011-12-07
CPC分类号： H01Q1/50 , H04B7/0408 , H04B7/0822
摘要： The invention relates to a device for receiving signals in a MIMO system comprising: m signal receiver channels, where m is greater than 1; an antenna system constituted either by n directive antennae n>m, each antenna being able to receive signals in one of its own angular sectors, the angular sectors of the n antennae essentially not overlapping each other and together thrilling a total angular sector of 360 degrees, or a multi-sector antenna with n angular sectors n>m the n angular sectors essentially not overlapping each other and having a distinct access; and switching means to associate with each signal receiver channel an antenna from among the n antennae according to a switching schema selected by control means, the switching schema being selected from a plurality of switching schemas of a switching matrix according to a criterion representing the quality of the reception of the signals by said signal receiver channels.
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3.发明授权公开(公告)号：US09282946B2
公开(公告)日：2016-03-15
申请号：US13643374
申请日：2011-04-20
申请人： Francois Guy Gerard Marie Vignon , William Tao Shi , Jean-Luc Robert , Ameet Kumar Jain , Luis Felipe Gutierrez
发明人： Francois Guy Gerard Marie Vignon , William Tao Shi , Jean-Luc Robert , Ameet Kumar Jain , Luis Felipe Gutierrez
CPC分类号： A61B8/0841 , A61B8/12 , A61B8/4488 , A61B8/483 , A61B8/5207 , A61B34/20 , A61B2090/3782 , G01S7/52085 , G01S15/8915 , G01S15/8993 , G01S15/8997
摘要： In one aspect, an ultrasound receive beamformer is configured for one-way only beamforming of transmissive ultrasound using one-way delays. The receive beamforming in some embodiments is used to track, in real time, a catheter, needle or other surgical tool within an image of a region of interest. The tool can have embedded at its tip a small ultrasound transmitter or receiver for transmitting or receiving the transmissive ultrasound. Optionally, additional transducers are fixed along the tool to provide the orientation of the tool.
摘要翻译： 在一个方面，超声接收波束形成器被配置用于单向延迟的单向波束形成透射超声波。 在一些实施例中，接收波束形成用于实时跟踪感兴趣区域的图像内的导管，针或其它手术工具。 该工具可以在其尖端处嵌入用于传输或接收透射超声的小型超声波发射器或接收器。 可选地，沿着工具固定附加的换能器以提供工具的取向。
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公开(公告)号：US20150305720A1
公开(公告)日：2015-10-29
申请号：US14793817
申请日：2015-07-08
申请人： Michael BURCHER , Jean-Luc ROBERT
发明人： Michael BURCHER , Jean-Luc ROBERT
CPC分类号： A61B8/5276 , A61B8/00 , A61B8/12 , A61B8/145 , A61B8/461 , A61B8/5246 , G01S7/52046 , G01S7/52095
摘要： An ultrasonic diagnostic imaging system produces an image with an extended focal range by transmitting a plurality of beams spaced along an array for multiline reception. The receive multilines of a plurality of transmit beams are spatially aligned and are combined with phase adjustment between the respective receive multilines to prevent undesired phase cancellation. The combined multilines produce the effect of an extended transmit focus so that an image produced using the combined multilines exhibits an extended focal range. To prevent motion artifacts the multiline order is adjustable as a function of image motion.
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公开(公告)号：US20140121502A1
公开(公告)日：2014-05-01
申请号：US14128139
申请日：2012-06-19
摘要： Beamforming to image an object (310), such as an interventional tool, is enhanced by initializing the beamformer (308) with the object's location, and optionally its orientation. The initializing uses an estimate of the location/orientation. The estimate is derived from the output of one or more sensors (304, 306). These are disposed external to the imaging array (316) that operates with the beamformer. The estimate is made without the need for a result of any imaging based on data arriving by reflected ultrasound. One or more of the sensors may be attached to the object, which may be elongated, as in the case of a needle or catheter used in medical diagnosis and treatment. In some implementations, one or more of the sensors are attached to the imaging probe (302). The sensors may be, for example, ultrasound, electromagnetic, optical, or shape sensors. Alternatively, ultrasound transmitting transducers may be substituted for the ultrasound sensors.
摘要翻译： 通过用对象的位置初始化波束形成器（308）以及可选的方向来增强对成像对象（310）进行成像（例如介入工具）的波束形成。 初始化使用位置/方向的估计。 估计是从一个或多个传感器（304,306）的输出导出的。 这些设置在与波束成形器一起操作的成像阵列（316）的外部。 无需基于通过反射超声波到达的数据的任何成像的结果进行估计。 如在用于医学诊断和治疗的针或导管的情况下，一个或多个传感器可以附接到物体，该物体可以是细长的。 在一些实施方案中，一个或多个传感器附接到成像探针（302）。 传感器可以是例如超声波，电磁，光学或形状传感器。 或者，可以将超声波发射换能器代替超声波传感器。
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公开(公告)号：US20130131511A1
公开(公告)日：2013-05-23
申请号：US13511307
申请日：2010-11-15
申请人： Roy Beck Peterson , Yan Shi , Hua Xie , Jean-Luc Robert , Vijay Shamdasani , Robert Randall Entrekin , Anna Teresa Fernandez
发明人： Roy Beck Peterson , Yan Shi , Hua Xie , Jean-Luc Robert , Vijay Shamdasani , Robert Randall Entrekin , Anna Teresa Fernandez
CPC分类号： A61B8/485 , A61B5/0048 , A61B8/08 , A61B8/085 , A61B8/14 , A61B8/463 , A61B8/5223 , G01S7/52022 , G01S7/52042 , G01S7/52071 , G01S7/52095 , G01S15/8984
摘要： An ultrasonic diagnostic imaging system produces an image of shear wave velocities by transmitting push pulses to generate shear waves. A plurality of tracking lines are transmitted and echoes received by a focusing beamformer adjacent to the location of the push pulses. The tracking lines are sampled in a time-interleaved manner. The echo data acquired along each tracking line is processed to determine the time of peak tissue displacement caused by the shear waves at points along the tracking line, and the times of peaks at adjacent tracking lines compared to compute a local shear wave velocity. The resultant map of shear wave velocity values is color-coded and displayed over an anatomical image of the region of interest.
摘要翻译： 超声波诊断成像系统通过传递推动脉冲来产生剪切波速度的图像以产生剪切波。 多个跟踪线被发送，并且由聚焦波束形成器接收的与推送脉冲位置相邻的回波。 跟踪线以时间交织的方式进行采样。 处理沿着每个跟踪线获取的回波数据，以确定由沿着跟踪线的点处的剪切波引起的峰组织位移的时间，以及相邻跟踪线的峰值时间，以计算局部剪切波速度。 所得到的剪切波速度值的映射是彩色编码的，并显示在感兴趣区域的解剖图像上。
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7.发明申请公开(公告)号：US20130041252A1
公开(公告)日：2013-02-14
申请号：US13643374
申请日：2011-04-20
申请人： Francois Guy Gerard Marie Vignon , William Tao Shi , Jean-Luc Robert , Ameet Kumar Jain , Luis Felipe Gutierrez
发明人： Francois Guy Gerard Marie Vignon , William Tao Shi , Jean-Luc Robert , Ameet Kumar Jain , Luis Felipe Gutierrez
CPC分类号： A61B8/0841 , A61B8/12 , A61B8/4488 , A61B8/483 , A61B8/5207 , A61B34/20 , A61B2090/3782 , G01S7/52085 , G01S15/8915 , G01S15/8993 , G01S15/8997
摘要： In one aspect, an ultrasound receive beamformer (212) is configured for one-way only beamforming (112) of transmissive ultrasound using one-way delays. The receive beamforming in some embodiments is used to track, in real time, a catheter, needle or other surgical tool within an image of a region of interest. The tool can have embedded at its tip a small ultrasound transmitter or receiver for transmitting or receiving the transmissive ultrasound. Optionally, additional transducers are fixed along the tool to provide the orientation of the tool.
摘要翻译： 在一个方面，超声波接收波束形成器（212）被配置用于使用单向延迟的单向波束形成（112）透射超声波。 在一些实施例中，接收波束形成用于实时跟踪感兴趣区域的图像内的导管，针或其它手术工具。 该工具可以在其尖端处嵌入用于传输或接收透射超声的小型超声波发射器或接收器。 可选地，沿着工具固定附加的换能器以提供工具的取向。
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公开(公告)号：US20120284766A1
公开(公告)日：2012-11-08
申请号：US13459656
申请日：2012-04-30
IPC分类号： H04N21/61
CPC分类号： H01P1/20 , H01P1/2039
摘要： The present invention relates to a band rejection filter. The band rejection filter includes a first signal transmission channel called a direct channel and a second signal transmission channel called a secondary channel. The direct channel and the secondary channel being designed to introduce at a first rejection frequency a phase difference of 180° between the signal circulating via the direct channel and the signal circulating via the secondary channel. Additionally, the secondary channel includes a filtering element for which the cut-off frequency is different from the first rejection frequency in a way to create a second rejection frequency.
摘要翻译： 本发明涉及一种带阻滤波器。 带阻滤波器包括被称为直接信道的第一信号传输信道和被称为次信道的第二信号传输信道。 直流通道和次通道被设计成以第一抑制频率在经由直通通道循环的信号与通过次通道循环的信号之间引入180°的相位差。 此外，次级通道包括一个滤波元件，其中截止频率与第一抑制频率不同，以产生第二抑制频率。
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公开(公告)号：US20120116220A1
公开(公告)日：2012-05-10
申请号：US13383471
申请日：2010-06-23
IPC分类号： A61B8/00
CPC分类号： A61B8/00 , A61B5/0048 , A61B8/485 , G01S7/52042
摘要： Shear wave dispersion ultrasound vibrometry (SDUV) is implemented in some embodiments to form, from a single tracking pulse, in-parallel-directed receive lines (411-426) for making measurements of a monochromatic shear wave. In some embodiments, sampling is performed, over spatial locations by means of passes over the locations, in an interlaced pattern (600) for making measurements of the wave. In some embodiments, measurements are made of the wave and to the measurements are applied a bank of filters (S724) that are tuned to respective candidate wave speeds, all without the need to determine a difference between wave phases at different spatial locations (451-454).
摘要翻译： 在一些实施例中实施剪切波分散超声波振动测量（SDUV），以从单个跟踪脉冲形成用于进行单色剪切波的测量的并行导向的接收线（411-426）。 在一些实施例中，通过在位置上的通过在隔行扫描图案（600）中通过空间位置进行采样，以进行波的测量。 在一些实施例中，对波进行测量，并且将测量值应用于被调谐到各个候选波速的滤波器组（S724），全部不需要确定不同空间位置处的波相位之间的差（451- 454）。
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公开(公告)号：US08137272B2
公开(公告)日：2012-03-20
申请号：US12299629
申请日：2007-04-17
IPC分类号： A61B8/00
CPC分类号： G01S7/52028 , G01S7/52047 , G01S7/5209 , G01S7/52095
摘要： An ultrasonic diagnostic imaging system produces an image with an extended focal range by transmitting a plurality of beams spaced along an array for multiline reception. The receive multilines of a plurality of transmit beams are spatially aligned and are combined with phase adjustment between the respective receive multilines to prevent undesired phase cancellation. The combined multilines produce the effect of an extended transmit focus so that an image produced using the combined multilines exhibits an extended focal range. To prevent motion artifacts the multiline order is adjustable as a function of image motion.
摘要翻译： 超声波诊断成像系统通过发射沿阵列间隔开的多个光束来产生具有扩展焦距范围的图像，用于多线接收。 多个发送波束的接收多线性在空间上对准，并且与相应的接收多线之间的相位调整组合以防止不期望的相位消除。 组合的多行产生扩展的发送聚焦的效果，使得使用组合多线生成的图像展现出扩展的焦距范围。 为了防止运动伪影，多行顺序可以作为图像运动的函数进行调整。
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