公开(公告)号：US10448924B2

公开(公告)日：2019-10-22

申请号：US13992281

申请日：2011-12-02

申请人： John Douglas Fraser ,  Roy Peterson ,  Jean-Luc Robert ,  Vijay Shamdasani ,  Hua Xie

发明人： John Douglas Fraser ,  Roy Peterson ,  Jean-Luc Robert ,  Vijay Shamdasani ,  Hua Xie

IPC分类号： A61B8/00 ,  A61B8/08 ,  G01S7/52

摘要： An ultrasonic diagnostic imaging system for shear wave measurement transmits push pulses in the form of a sheet of energy. The sheet of energy produces a shear wavefront which is a plane wave, which does not suffer from the 1/R radial dissipation of push pulse force as does a conventional push pulse generated along a single push pulse vector. The sheet of energy can be planar, curved, or in some other two or three dimensional shape. A curved sheet of energy can produce a shear wave source which focuses into a thin line, which increases the resolution and sensitivity of the measuring techniques used to detect the shear wave effect.

公开(公告)号：US20120323123A1

公开(公告)日：2012-12-20

申请号：US13500527

申请日：2010-09-30

申请人： Unmin Bae ,  Donna Lynn Richmond ,  Alexey Viktorovich Cherepakhin ,  Zhaowen Yang ,  Vijay Shamdasani

发明人： Unmin Bae ,  Donna Lynn Richmond ,  Alexey Viktorovich Cherepakhin ,  Zhaowen Yang ,  Vijay Shamdasani

IPC分类号： A61B8/14

CPC分类号： G01S7/52036 ,  G01S7/52071 ,  G01S7/52073 ,  G01S15/8977

摘要： This invention relates to a method of ultrasonically imaging a region of interest that may contain anechoic and/or hypoechoic echoes.The method comprises the steps of: providing a first and a second set of ultrasound data, said two sets comprising information of the region of interest at two different instants of time respectively, determining from the first and second data sets, a temporal consistency value of at least an area of the region of interest, and producing an image indicating this area as being hypoechoic or anechoic in accordance with said temporal consistency value. Doing so, an anechoic image produced by the method of the invention emphazises the rendering of anechoic and/or hypoechoic areas over echoic ones.

摘要翻译： 本发明涉及一种超声成像可能包含消声和/或低回声的感兴趣区域的方法。 该方法包括以下步骤：提供第一组和第二组超声数据，所述两组分别包括在两个不同时刻的感兴趣区域的信息，从第一和第二数据集确定时间一致性值 至少所述感兴趣区域的区域，并且根据所述时间一致性值产生指示该区域为低回声或消音的图像。 这样做，通过本发明的方法产生的消音图像强调了消音和/或低回声区域在回声区域上的呈现。

公开(公告)号：US20140005548A1

公开(公告)日：2014-01-02

申请号：US13992281

申请日：2011-12-02

申请人： John Douglas Fraser ,  Roy Peterson ,  Jean-Luc Robert ,  Vijay Shamdasani ,  Hua XIE

发明人： John Douglas Fraser ,  Roy Peterson ,  Jean-Luc Robert ,  Vijay Shamdasani ,  Hua XIE

IPC分类号： A61B8/00 ,  A61B8/08

CPC分类号： A61B8/4483 ,  A61B8/0825 ,  A61B8/4488 ,  A61B8/461 ,  A61B8/485 ,  A61B8/5276 ,  G01S7/5202 ,  G01S7/52042 ,  G01S7/52046 ,  G01S7/52095

摘要： An ultrasonic diagnostic imaging system for shear wave measurement transmits push pulses in the form of a sheet of energy. The sheet of energy produces a shear wavefront which is a plane wave, which does not suffer from the 1/R radial dissipation of push pulse force as does a conventional push pulse generated along a single push pulse vector. The sheet of energy can be planar, curved, or in some other two or three dimensional shape. A curved sheet of energy can produce a shear wave source which focuses into a thin line, which increases the resolution and sensitivity of the measuring techniques used to detect the shear wave effect.

摘要翻译： 用于剪切波测量的超声诊断成像系统以一片能量的形式传送推动脉冲。 能量片产生一个平面波的剪切波前，其不会像沿着单个推动脉冲矢量产生的常规按压脉冲那样遭受推力脉冲的1 / R径向耗散。 能量片可以是平面的，弯曲的，或者是一些其它的二维或三维形状。 弯曲的能量板可以产生聚焦成细线的剪切波源，这增加了用于检测剪切波效应的测量技术的分辨率和灵敏度。

公开(公告)号：US20100094131A1

公开(公告)日：2010-04-15

申请号：US12444122

申请日：2007-10-02

申请人： Unmin Bae ,  Yongmin Kim ,  Vijay Shamdasani

发明人： Unmin Bae ,  Yongmin Kim ,  Vijay Shamdasani

IPC分类号： A61B8/14 ,  A61B8/00 ,  G06K9/00

CPC分类号： A61B8/08 ,  A61B8/0825 ,  A61B8/485

摘要： An in vivo source of compression is used to cause a bodily structure of interest to expand and contract. Ultrasound signals are incident and their echoes are processed by a strain processor. Resulting strain images are freed from noise caused external sources of compression. A tissue stiffness index is calculated to obtain quantitative measure of stiffness.

摘要翻译： 使用体内压缩源来引起感兴趣的身体结构的扩张和收缩。 超声信号是入射的，其回波由应变处理器处理。 所得到的应变图像不受噪声引起的外部压缩源的影响。 计算组织刚度指数以获得刚度的定量测量。

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

IPC分类号： A61B5/00 ,  A61B8/00 ,  A61B8/08 ,  A61B5/055

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.

公开(公告)号：US08491477B2

公开(公告)日：2013-07-23

申请号：US12444122

申请日：2007-10-02

申请人： Unmin Bae ,  Yongmin Kim ,  Vijay Shamdasani

发明人： Unmin Bae ,  Yongmin Kim ,  Vijay Shamdasani

IPC分类号： A61B8/00 ,  G06K9/00

CPC分类号： A61B8/08 ,  A61B8/0825 ,  A61B8/485

摘要： An in vivo source of compression is used to cause a bodily structure of interest to expand and contract. Ultrasound signals are incident and their echoes are processed by a strain processor. Resulting strain images are freed from noise caused by external sources of compression. A tissue stiffness index is calculated to obtain quantitative measure of stiffness.

摘要翻译： 使用体内压缩源来引起感兴趣的身体结构的扩张和收缩。 超声信号是入射的，其回波由应变处理器处理。 所得到的应变图像不受外部压缩源引起的噪声影响。 计算组织刚度指数以获得刚度的定量测量。

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

IPC分类号： A61B8/08 ,  A61B8/00 ,  A61B8/14

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。

公开(公告)号：US10368843B2

公开(公告)日：2019-08-06

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 Ferandez

发明人： Roy Beck Peterson ,  Yan Shi ,  Hua Xie ,  Jean-Luc Robert ,  Vijay Shamdasani ,  Robert Randall Entrekin ,  Anna Teresa Ferandez

IPC分类号： A61B5/00 ,  A61B8/00 ,  A61B8/08 ,  A61B8/14 ,  G01S7/52 ,  G01S15/89

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.

公开(公告)号：US20130317362A1

公开(公告)日：2013-11-28

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

IPC分类号： A61B8/08 ,  A61B8/00

CPC分类号： A61B8/5207 ,  A61B5/0051 ,  A61B5/055 ,  A61B5/4244 ,  A61B5/7235 ,  A61B8/4483 ,  A61B8/485 ,  A61B2562/0204

摘要： The weighted-average-based position (244) in the temporal domain is computed based on the sampling of shear wave displacement (226) along the propagation path. The weighting is, for example, by displacement observed at times (230) corresponding to sampling and represents the time of arrival of the shear wave at the shear-wave propagation path location being sampled. In some embodiments, the computed shear-wave times of arrival at respective locations are functionally related to known inter-location distances (250) to derive shear-wave group velocity. The derived velocity can serve as input into known algorithms for estimating shear elasticity of the medium, such as body tissue, for purposes of clinical diagnosis and therapy assessment.

摘要翻译： 基于沿着传播路径的剪切波位移（226）的采样来计算时域中的基于加权平均的位置（244）。 加权是例如通过对应于采样的时间（230）观察到的位移，并且表示剪切波在被采样的剪切波传播路径位置处的到达时间。 在一些实施例中，到达相应位置的计算的剪切波时间在功能上与已知位置间距（250）有关，以导出剪切波群速度。 为了临床诊断和治疗评估的目的，导出的速度可以用作用于估计介质（例如身体组织）的剪切弹性的已知算法的输入。

公开(公告)号：US20120165670A1

公开(公告)日：2012-06-28

申请号：US13393998

申请日：2010-08-25

申请人： William Tao Shi ,  Francois Guy Gerard Marie Vignon ,  Jeffry Earl Powers ,  Brent Stephen Robinson ,  Michael Richard Burcher ,  Vijay Shamdasani

发明人： William Tao Shi ,  Francois Guy Gerard Marie Vignon ,  Jeffry Earl Powers ,  Brent Stephen Robinson ,  Michael Richard Burcher ,  Vijay Shamdasani

IPC分类号： A61B8/13

CPC分类号： A61B8/13 ,  A61B5/6814 ,  A61B8/0808 ,  A61B8/4236 ,  A61B8/4483 ,  A61B8/481 ,  A61B2017/00725 ,  A61B2090/378 ,  A61N7/00 ,  G01S7/52049 ,  G01S15/8913 ,  G01S15/8925

摘要： Ultrasound aberration, especially in transcranial imaging or therapy, is corrected by capturing the laterally two-dimensional nature of the aberration in the ultrasound being received, as by means of a two-dimensional receiving transducer array (104, 108). In some embodiments, transmissive ultrasound (164) is applied through the temporal window and is, for example, emitted from one or more real or virtual point sources (160) at a time, each point source being a single transducer element or patch or the geometrical focus of a collection of elements or patches. A patch may serve, in one aspect as a small focused transducer in the near field. A contralateral array (104, 108) is, in one version, comprised of the point sources. In some aspects, aberration maps structured, independent-variable-wise, to correspond to the array structure of the receiving transducer embody aberration estimates, the ultrasound device being configured for improving ultrasound operation by modifying device settings to improve the location of ultrasound reception/transmission or correct beamforming. Enhancements include beam placement visualization, and intensity and beam shape prediction.

摘要翻译： 通过二维接收换能器阵列（104,108），通过捕获正在接收的超声中的像差的横向二维特性来校正超声像差，特别是经颅成像或治疗。 在一些实施例中，透射超声（164）通过时间窗口被施加，并且例如一次从一个或多个实际或虚拟点源（160）发射，每个点源是单个换能器元件或贴片 元素或补丁集合的几何焦点。 在一个方面，补片可以在近场中用作小型聚焦换能器。 在一个版本中，对侧阵列（104,108）由点源组成。 在一些方面，结构化，独立变量地对应于接收换能器的阵列结构的像差贴图体现了像差估计，超声装置被配置为通过修改装置设置来改善超声波操作来改善超声波接收/发射的位置 或正确的波束成形。 增强功能包括光束放置可视化，强度和光束形状预测。