Swept focus for acoustic radiation force impulse
    22.
    发明申请
    Swept focus for acoustic radiation force impulse 有权
    扫频对焦的声辐射力脉冲

    公开(公告)号:US20150201905A1

    公开(公告)日:2015-07-23

    申请号:US14160440

    申请日:2014-01-21

    IPC分类号: A61B8/08 A61B8/00

    摘要: Acoustic radiation force impulse (ARFI) scanning uses a swept focus in transmit. Using a changing delay or phase profile across the array during the generation of the ARFI pulse, a time varying focus is provided for the ARFI beam. This time varying focus may be used to extend the focus in depth, azimuth, and/or elevation. Less repetition may be needed to measure tissue characteristics from displacements due to the multi or continuous change in foci within a given ARFI transmit beam.

    摘要翻译: 声辐射脉冲(ARFI)扫描在扫描中使用扫频对焦。 在产生ARFI脉冲期间,使用整个阵列上的改变的延迟或相位曲线,为ARFI波束提供时变焦点。 可以使用该时间变化的焦点来在深度,方位角和/或高度上扩展焦点。 可能需要较少的重复来测量由给定ARFI发射束内的焦点的多次或连续变化引起的位移的组织特征。

    Adaptive Image Optimization in Induced Wave Ultrasound Imaging
    24.
    发明申请
    Adaptive Image Optimization in Induced Wave Ultrasound Imaging 有权
    诱导波超声成像中的自适应图像优化

    公开(公告)号:US20130123630A1

    公开(公告)日:2013-05-16

    申请号:US13298182

    申请日:2011-11-16

    IPC分类号: A61B8/14

    摘要: Adaptive image optimization is provided in induced wave ultrasound imaging. The values for various transmit and receive parameters may be set adaptively. Based on feedback from use with a given patient, the values are set to better optimize signal-to-noise ratio, off-time, tracking accuracy or other consideration. Transmit frequency, F-number, line spacing, tracking pulse repetition frequency, line sampling count, and/or push pulse amplitude values may adapt.

    摘要翻译: 感应波超声成像提供自适应图像优化。 可以自适应地设置各种发送和接收参数的值。 基于与给定患者使用的反馈,这些值被设置为更好地优化信噪比,关闭时间,跟踪精度或其他考虑。 发射频率,F数,行间距,跟踪脉冲重复频率,线采样计数和/或推脉冲振幅值可适应。

    Sparse tissue property measurements in medical ultrasound imaging
    25.
    发明授权
    Sparse tissue property measurements in medical ultrasound imaging 有权
    医学超声成像中的稀疏组织特性测量

    公开(公告)号:US08197408B2

    公开(公告)日:2012-06-12

    申请号:US12038683

    申请日:2008-02-27

    IPC分类号: A61B8/00

    摘要: The shear modulus information is measured for sparse locations in a scanning field of view. For other locations, the shear modulus information is calculated as a function of the sparsely measured values and strain information. For example, shear modulus values are provided for every grid point in a field of view based on strain values for every grid point and on sparsely measured shear modulus values.

    摘要翻译: 在扫描视野中对稀疏位置测量剪切模量信息。 对于其他位置,剪切模量信息被计算为稀疏测量值和应变信息的函数。 例如,基于每个网格点的应变值和稀疏测量的剪切模量值,为视场中的每个网格点提供剪切模量值。

    Tissue complex modulus and/or viscosity ultrasound imaging
    26.
    发明授权
    Tissue complex modulus and/or viscosity ultrasound imaging 有权
    组织复数模量和/或粘度超声成像

    公开(公告)号:US08137275B2

    公开(公告)日:2012-03-20

    申请号:US11824388

    申请日:2007-06-28

    IPC分类号: A61B8/00

    CPC分类号: A61B8/08 A61B8/485

    摘要: Complex response of tissue is calculated as function of a convolution relationship associated with measured strain with applied stress. In the Fourier or frequency domain, the convolution is a simple algebraic computation, such as multiplication. The complex response provides elasticity and viscosity information, assisting diagnosis. Complex compliance may be directly calculated from the strain and stress. Complex fluidity may be directly calculated from strain rate and stress.

    摘要翻译: 计算组织的复杂反应作为与所施加的应力的测量应变相关的卷积关系的函数。 在傅立叶或频域中,卷积是一个简单的代数计算,如乘法。 复杂的反应提供弹性和粘度信息,辅助诊断。 复杂的顺应性可以从应变和应力直接计算。 复杂流动性可以从应变率和应力直接计算。

    Panoramic elasticity ultrasound imaging
    27.
    发明授权
    Panoramic elasticity ultrasound imaging 有权
    全景弹性超声成像

    公开(公告)号:US07678051B2

    公开(公告)日:2010-03-16

    申请号:US11237204

    申请日:2005-09-27

    IPC分类号: A61B8/00

    摘要: Using compression, tissue elasticity data from two or more different fields of view is acquired. Since different amounts of compression may be used for the different fields of view, the dynamic range of the elasticity data is updated. A panoramic elasticity image is generated from the updated elasticity data of multiple fields of view. A panoramic elasticity image represents the combined fields of view for the elasticity data.

    摘要翻译: 使用压缩,获得来自两个或更多个不同视野的组织弹性数据。 由于对于不同的视场可以使用不同的压缩量,所以弹性数据的动态范围被更新。 从多个视野的更新的弹性数据生成全景弹性图像。 全景弹性图像表示弹性数据的组合视野。

    Cross reference measurement for diagnostic medical imaging
    28.
    发明申请
    Cross reference measurement for diagnostic medical imaging 有权
    诊断医学成像的交叉参考测量

    公开(公告)号:US20070230758A1

    公开(公告)日:2007-10-04

    申请号:US11728686

    申请日:2007-03-26

    IPC分类号: G06K9/00

    摘要: Measurements in diagnostic medical imaging are cross-referenced. A measurement made for one type of data is reflected in an image for another type of data. For example, a length is measured from ultrasound data. A line associated with the length is displayed on the ultrasound image. In a magnetic resonance image (MRI), the same line is displayed at a corresponding location. The same measurement may also be made with the MRI data and reflected in the ultrasound image. Each image shows both measurements in this example. The difference in the same measurements from different types of data may be useful for diagnosis. In the above example, the length is measured from ultrasound and from MRI. The difference between the two measured lengths may provide diagnostically useful information.

    摘要翻译: 诊断医学成像中的测量是相互参照的。 对于一种类型的数据进行的测量反映在用于另一类型的数据的图像中。 例如,从超声数据测量长度。 在超声图像上显示与长度相关联的线。 在磁共振图像(MRI)中,在相应的位置显示相同的线。 也可以使用MRI数据进行相同的测量并反映在超声图像中。 在此示例中,每个图像显示两个测量。 来自不同类型数据的相同测量值的差异可能对诊断有用。 在上述示例中,长度是从超声波和MRI测量的。 两个测量长度之间的差异可以提供诊断上有用的信息。

    Shear wave estimation from analytic data

    公开(公告)号:US10512450B2

    公开(公告)日:2019-12-24

    申请号:US14035860

    申请日:2013-09-24

    申请人: Liexiang Fan

    发明人: Liexiang Fan

    IPC分类号: A61B8/08 G01S7/52 G01S15/89

    摘要: Shear wave characteristics are estimated from analytic data. Measures of displacement are converted into complex representations. The magnitude and/or phase components of the complex representation may be used for estimating various characteristics, such as velocity, center frequency, attenuation, shear modulus, or shear viscosity. The zero-phase of the phase component represents an occurrence of the shear wave at that location.