公开(公告)号：US6036643A

公开(公告)日：2000-03-14

申请号：US79139

申请日：1998-05-14

申请人： Aline Laure Criton ,  Marshall Taylor Robinson ,  Thanasis Loupas ,  Roy Beck Peterson ,  Patrick Rene' Pesque ,  Helen Frances Routh

发明人： Aline Laure Criton ,  Marshall Taylor Robinson ,  Thanasis Loupas ,  Roy Beck Peterson ,  Patrick Rene' Pesque ,  Helen Frances Routh

IPC分类号： A61B8/06 ,  A61B8/08 ,  G01S7/52 ,  G01S15/89 ,  A61B8/00

CPC分类号： G01S15/8979 ,  A61B8/488 ,  G01S7/52038 ,  G01S15/8993 ,  G01S7/52069 ,  G01S7/52071

摘要： An ultrasonic diagnostic imaging system and method are described by which a fundamental frequency signal is transmitted into the body and harmonic (nonlinear) echo returns are received from the transmission. The harmonic echo signals are Doppler processed and displayed. The harmonic Doppler signals may be displayed alone, or in combination with a fundamental frequency or harmonic grayscale image. In a preferred embodiment harmonic signals returned from moving tissue are segmented on an intensity or frequency basis and displayed. The inventive apparatus and method provide highly resolved ultrasonic images of moving tissue which are substantially unobscured by image clutter from structures or tissue in the near field.

摘要翻译： 描述了一种超声波诊断成像系统和方法，通过该超声波诊断成像系统和方法将基频信号传输到身体中，并且从传输接收谐波（非线性）回波返回。 谐波回波信号被多普勒处理和显示。 谐波多普勒信号可以单独显示，也可以与基频或谐波灰度图像组合显示。 在优选实施例中，从移动组织返回的谐波信号是基于强度或频率被分段并显示的。 本发明的装置和方法提供移动组织的高度分辨的超声图像，其基本上由近场中的结构或组织的图像杂波观察。

公开(公告)号：US06464637B1

公开(公告)日：2002-10-15

申请号：US09721301

申请日：2000-11-21

申请人： Aline Laure Criton ,  Helen Frances Routh

发明人： Aline Laure Criton ,  Helen Frances Routh

IPC分类号： A61B800

CPC分类号： G01S15/8984 ,  A61B8/06 ,  A61B8/08 ,  G01S15/8918 ,  G01S15/8927

摘要： An ultrasound system produces an image including a blood vessel. A blood flow direction indicator is displayed over the blood vessel to indicate the direction of blood flow within the vessel. The direction of blood flow is used to correct the Doppler estimate for angle of insonation. The orientation of the blood flow direction indicator is set automatically by a vector processor. The automatically calculated angle is used to display the correct flow velocity without user intervention.

摘要翻译： 超声系统产生包括血管的图像。 血管方向指示器显示在血管上，以指示血管内血流的方向。 血流方向用于校正多普勒超声角度的估计。 血流方向指示器的方向由矢量处理器自动设定。 自动计算的角度用于显示正确的流速，无需用户干预。

公开(公告)号：US06447453B1

公开(公告)日：2002-09-10

申请号：US09732614

申请日：2000-12-07

申请人： David N. Roundhill ,  Cedric Chenal ,  Aline Laure Criton

发明人： David N. Roundhill ,  Cedric Chenal ,  Aline Laure Criton

IPC分类号： A61B800

CPC分类号： A61B8/485 ,  A61B8/0858 ,  A61B8/0883 ,  A61B8/0891 ,  A61B8/483

摘要： Ultrasonic cardiac image information is acquired and segmented by automatic border detection. The segmented ultrasonic information is used to display regional wall motion over time. The segmented information may be presented in a color-coded representation, or entered automatically as qualitative or quantitative measures on a scorecard of cardiac performance. The inventive technique is applicable to both two dimensional and three dimensional ultrasonic image information.

公开(公告)号：US06537221B2

公开(公告)日：2003-03-25

申请号：US09732612

申请日：2000-12-07

申请人： Aline Laure Criton ,  Cedric Chenal ,  David N. Roundhill

发明人： Aline Laure Criton ,  Cedric Chenal ,  David N. Roundhill

IPC分类号： A61B802

CPC分类号： G01S15/8979 ,  A61B8/0883 ,  A61B8/0891 ,  A61B8/485 ,  A61B8/486 ,  A61B8/488 ,  G01S7/52036 ,  G01S7/52038 ,  G01S7/52042 ,  G01S15/8993 ,  G06T7/251 ,  G06T2207/30048

摘要： Strain rate analysis is performed for ultrasonic images in which the spatial gradient of velocity is calculated in the direction of tissue motion. Strain rate is calculated for cardiac ultrasound images in the direction of motion which, for myocardial images, may be either in the plane of the myocardium or across the myocardium. Strain rate information is calculated for a sequence of images of a heart cycle and displayed for an automatically drawn border such as the endocardial border over the full heart cycle.

公开(公告)号：US6139501A

公开(公告)日：2000-10-31

申请号：US327693

申请日：1999-06-08

申请人： David N. Roundhill ,  Thanasis Loupas ,  Aline Laure Criton ,  David Rust

发明人： David N. Roundhill ,  Thanasis Loupas ,  Aline Laure Criton ,  David Rust

IPC分类号： A61B8/06 ,  A61B8/08 ,  A61B8/14 ,  G01S7/52 ,  G01S15/89 ,  A61B8/00

CPC分类号： G01S15/8979 ,  A61B8/06 ,  A61B8/13 ,  A61B8/463 ,  A61B8/488 ,  G01S7/52066 ,  G01S7/52074 ,  G01S7/52085 ,  A61B8/14 ,  G01S15/8993 ,  G01S7/52038 ,  G01S7/52061 ,  G01S7/52071

摘要： Multi-mode ultrasonic images are formed by processing the ultrasonic echoes from a single transmit pulse in parallel to display both tissue and motion. In a preferred embodiment short transmit bursts are employed to produce echo ensembles for tissue motion imaging. At least one sequence of echoes of the ensemble is also B mode processed for display of tissue structure. Preferably both the B mode and motion processing are performed in parallel. A substantially constant pulse repetition frequency reduces artifact development when imaging in the two modes from the same transmit pulse.

摘要翻译： 通过平行处理来自单个发射脉冲的超声波回波来形成多模式超声波图像，以显示组织和运动。 在优选实施例中，使用短的发射脉冲串来产生用于组织运动成像的回波集合。 组合的至少一个回波序列也是B模式处理以显示组织结构。 优选并行执行B模式和运动处理两者。 基本上恒定的脉冲重复频率在来自相同发射脉冲的两种模式中成像时减少了伪影发展。

公开(公告)号：US5961462A

公开(公告)日：1999-10-05

申请号：US80881

申请日：1998-05-18

申请人： Thanasis Loupas ,  Charles Powrie ,  Aline Laure Criton

发明人： Thanasis Loupas ,  Charles Powrie ,  Aline Laure Criton

IPC分类号： A61B8/06 ,  A61B8/08 ,  G01S7/52 ,  G01S15/89 ,  A61B8/02

CPC分类号： G01S15/8979 ,  A61B8/06 ,  A61B8/13 ,  A61B8/488 ,  G01S7/52063 ,  G01S7/52095

摘要： The Doppler imaging of blood flow or slowly moving tissue at high frame rates of display is performed by oversampled acquisition of a Doppler ensemble from the body and display of Doppler information within a display range of Doppler values which is less than the range defined by said rate of oversampling. Preferably, Doppler information is acquired at the highest PRF for the depth of Doppler imaging. In one embodiment Doppler data is scaled in proportion to the ratio of the acquisition PRF to the display PRF. Alternatively, an embodiment of the present invention performs Doppler estimation by autocorrelation or spectral analysis which operates upon nonadjacent samples in the Doppler ensemble.

摘要翻译： 以高帧率显示的血液流动或缓慢移动的组织的多普勒成像通过从身体的多普勒综合征的过采样获取和在多普勒值的显示范围内显示多普勒信息来执行，该多普勒信息小于由所述比率限定的范围 的过采样。 优选地，在多普勒成像深度的最高PRF处获取多普勒信息。 在一个实施例中，多普勒数据与捕获PRF与显示PRF的比例成比例地缩放。 或者，本发明的实施例通过自相关或频谱分析来执行多普勒估计，其对多普勒集合中的不相邻样本进行操作。

公开(公告)号：US5800356A

公开(公告)日：1998-09-01

申请号：US865340

申请日：1997-05-29

申请人： Aline Laure Criton ,  Thanasis Loupas

发明人： Aline Laure Criton ,  Thanasis Loupas

IPC分类号： A61B8/06 ,  A61B8/08 ,  G01S7/52 ,  G01S15/89 ,  A61B8/12

CPC分类号： A61B8/486 ,  A61B8/488 ,  G01S15/8979 ,  G01S7/52036 ,  A61B5/489 ,  G01S7/52073

摘要： A method and apparatus are presented for tracing the border of tissue through temporally acquired scanlines comprising the steps of reducing noise in the scanlines, producing a map of tissue edges from the scanlines, denoting a tissue border to be traced, and using velocity information corresponding to tissue edges to trace the denoted border.

摘要翻译： 提出了一种用于通过暂时获取的扫描线跟踪组织边界的方法和装置，包括以下步骤：减少扫描线中的噪声，产生来自扫描线的组织边缘的图，表示要跟踪的组织边界，以及使用对应于 组织边缘以跟踪表示的边界。