公开(公告)号：US20100016719A1

公开(公告)日：2010-01-21

申请号：US12174514

申请日：2008-07-16

申请人： Paul Freiburger ,  Leixiang Fan ,  John Dennis

发明人： Paul Freiburger ,  Leixiang Fan ,  John Dennis

IPC分类号： A61B8/00

CPC分类号： A61B8/00 ,  A61B8/485 ,  G01S7/5202 ,  G01S7/52036 ,  G01S7/52096

摘要： Acoustic output power is adaptively regulated in medical diagnostic ultrasound imaging. Given transmit settings, the acoustic power and/or another setting may be altered to avoid violating a limit set by regulation. The limit is based, at least in part, on an assumed attenuation. By measuring the attenuation, such as by identifying a type of tissue, the power and/or limit may be altered or adapt. By accounting for the attenuation in the region to be scanned, a greater output power may be possible while still providing the same level of safety.

摘要翻译： 声学输出功率在医学诊断超声成像中自适应调节。 给定发送设置，可以改变声功率和/或另一设置以避免违反通过调节设置的限制。 该限制至少部分地基于假定的衰减。 通过测量衰减，例如通过识别组织的类型，可以改变或适应功率和/或限制。 通过考虑要扫描的区域中的衰减，在仍然提供相同的安全级别的情况下，可以实现更大的输出功率。

公开(公告)号：US20090216119A1

公开(公告)日：2009-08-27

申请号：US12038683

申请日：2008-02-27

申请人： LIEXIANG FAN ,  PAUL FREIBURGER

发明人： LIEXIANG FAN ,  PAUL FREIBURGER

IPC分类号： A61B8/00

CPC分类号： G08C23/02 ,  A61B5/0048 ,  A61B8/08 ,  A61B8/485 ,  G01N3/24 ,  G01N2203/0089 ,  G01N2203/0094 ,  G01N2203/0623

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。

公开(公告)号：US20080027323A1

公开(公告)日：2008-01-31

申请号：US11904909

申请日：2007-09-28

申请人： Paul Freiburger

发明人： Paul Freiburger

IPC分类号： A61B8/00

CPC分类号： A61B8/06 ,  A61B8/13 ,  A61B8/4405 ,  A61B8/4411 ,  A61B8/4483 ,  A61B8/467 ,  G01S7/5208 ,  G01S15/8925 ,  G01S15/8927 ,  G01S15/8984

摘要： Methods and systems for acquiring spectral and velocity information with a multi-dimensional array are provided. For example, a dedicated receive aperture is formed at a multi-dimensional array for steered continuous wave imaging. Other elements not within the dedicated receive aperture are used for transmitting continuous waves or transmitting and receiving pulsed waveforms in other modes of imaging. As another example, switches or other structures are provided for selecting between a plurality of possible apertures for a steered continuous wave aperture. The selection is performed in response to a configuration of an ultrasound system, such as selection of a focal location or steer direction. The aperture is then used for either transmit or receive operations of steered continuous wave imaging. As yet another example, at least part of the steered continuous wave beamformer is provided within a transducer assembly. The transducer assembly includes a probe housing and a connector housing electrically connected by a cable. In yet another example, at least one angle of a three-dimensional indication of flow direction is input from a user. Velocity values in either steered continuous wave imaging or pulsed wave imaging are corrected as a function of a three-dimensional indication of flow direction.

公开(公告)号：US09398898B2

公开(公告)日：2016-07-26

申请号：US13032834

申请日：2011-02-23

申请人： Wilko Wilkening ,  Saurabh Datta ,  Paul Freiburger ,  Chi-Yin Lee

发明人： Wilko Wilkening ,  Saurabh Datta ,  Paul Freiburger ,  Chi-Yin Lee

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

CPC分类号： A61B8/488 ,  A61B8/06 ,  A61B8/463 ,  A61B8/486 ,  A61B8/5223 ,  A61B8/5246 ,  G01S7/52066 ,  G01S7/52088 ,  G01S7/5209 ,  G01S7/52092 ,  G01S7/52093 ,  G01S7/52095

摘要： Spatially distinct Spectral Doppler information is acquired. Spatially distinct transmit beams are formed at a same time or in parallel. One or more receive beams are formed in response to each transmit beam, providing samples for a plurality of laterally spaced locations. A spectrum is determined for each of a plurality of spatial locations. In another approach, samples are acquired for different regions at different times. The scanning for each region is interleaved based on the anatomic operation. Since spectral estimation relies on a time-continuous series of transmission and reception, the scanning for a region occurs over a sufficient period for spectral estimation before the scanning for a different region occurs. By using anatomic operation, sufficient time is provided for spectral estimation. Due to anatomic operation, different regions are associated with flow at different times.

摘要翻译： 获取空间不同的光谱多普勒信息。 空间不同的发射光束同时或并行地形成。 响应于每个发射束形成一个或多个接收波束，为多个横向间隔的位置提供采样。 为多个空间位置中的每一个确定频谱。 在另一种方法中，在不同时间针对不同区域采集样本。 基于解剖操作对每个区域进行扫描。 由于频谱估计依赖于时间连续的发射和接收序列，所以在针对不同区域的扫描发生之前，区域的扫描发生在足够的时间段用于谱估计。 通过使用解剖操作，为光谱估计提供足够的时间。 由于解剖操作，不同的区域与不同时间的流量有关。

公开(公告)号：US08197408B2

公开(公告)日：2012-06-12

申请号：US12038683

申请日：2008-02-27

申请人： Liexiang Fan ,  Paul Freiburger

发明人： Liexiang Fan ,  Paul Freiburger

IPC分类号： A61B8/00

CPC分类号： G08C23/02 ,  A61B5/0048 ,  A61B8/08 ,  A61B8/485 ,  G01N3/24 ,  G01N2203/0089 ,  G01N2203/0094 ,  G01N2203/0623

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。

公开(公告)号：US08137275B2

公开(公告)日：2012-03-20

申请号：US11824388

申请日：2007-06-28

申请人： Liexiang Fan ,  Paul Freiburger

发明人： Liexiang Fan ,  Paul Freiburger

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。

公开(公告)号：US20050203404A1

公开(公告)日：2005-09-15

申请号：US10787695

申请日：2004-02-26

申请人： Paul Freiburger

发明人： Paul Freiburger

IPC分类号： A61B8/02 ,  A61B8/06 ,  A61B8/12 ,  A61B8/14 ,  G01S15/58 ,  G01S15/89

CPC分类号： A61B8/06 ,  A61B8/13 ,  A61B8/4405 ,  A61B8/4411 ,  A61B8/4483 ,  A61B8/467 ,  G01S7/5208 ,  G01S15/8925 ,  G01S15/8927 ,  G01S15/8984

摘要： Methods and systems for acquiring spectral and velocity information with a multi-dimensional array are provided. For example, a dedicated receive aperture is formed at a multi-dimensional array for steered continuous wave imaging. Other elements not within the dedicated receive aperture are used for transmitting continuous waves or transmitting and receiving pulsed waveforms in other modes of imaging. As another example, switches or other structures are provided for selecting between a plurality of possible apertures for a steered continuous wave aperture. The selection is performed in response to a configuration of an ultrasound system, such as selection of a focal location or steer direction. The aperture is then used for either transmit or receive operations of steered continuous wave imaging. As yet another example, at least part of the steered continuous wave beamformer is provided within a transducer assembly. The transducer assembly includes a probe housing and a connector housing electrically connected by a cable. In yet another example, at least one angle of a three-dimensional indication of flow direction is input from a user. Velocity values in either steered continuous wave imaging or pulsed wave imaging are corrected as a function of a three-dimensional indication of flow direction.

摘要翻译： 提供了采用多维阵列获取光谱和速度信息的方法和系统。 例如，用于转向连续波成像的多维阵列形成专用接收孔径。 不在专用接收孔径内的其他元件用于传输连续波或在其他成像模式中发送和接收脉冲波形。 作为另一示例，提供开关或其他结构用于在用于转向连续波孔的多个可能的孔之间进行选择。 响应于超声系统的配置，例如选择焦点位置或转向方向来执行选择。 然后，孔径用于传导或接收转向连续波成像的操作。 作为另一示例，至少部分转向连续波束形成器设置在换能器组件内。 换能器组件包括探针壳体和通过电缆电连接的连接器壳体。 在又一示例中，从用户输入流动方向的三维指示的至少一个角度。 转向连续波成像或脉冲波成像中的速度值作为流动方向的三维指示的函数被校正。

公开(公告)号：US20050033175A1

公开(公告)日：2005-02-10

申请号：US10624120

申请日：2003-07-21

申请人： Chi-Yin Lee ,  Paul Freiburger ,  Mark Magrane

发明人： Chi-Yin Lee ,  Paul Freiburger ,  Mark Magrane

IPC分类号： A61B8/06

CPC分类号： A61B8/06

摘要： Methods and systems for automatic optimization in spectral Doppler ultrasound imaging are provided. The value for one or more spectral Doppler parameter is optimized using numerical optimization rather than predefined sampling. Various spectral Doppler parameters are set, such as a position of the gate, gate size, transmit frequency, filter settings, Doppler gain, beamline orientation or angle of intersection between the gate position and the scan line, aperture size, or other spectral Doppler transmit or receive parameters effecting the spectral Doppler imaging. A processor automatically calculates a setting or value for one or more of the spectral Doppler parameters, resulting in more objective optimization than provided by a user setting.

摘要翻译： 提供了频谱多普勒超声成像自动优化的方法和系统。 使用数值优化而不是预定义的采样来优化一个或多个频谱多普勒参数的值。 设置各种频谱多普勒参数，例如门的位置，门尺寸，发射频率，滤波器设置，多普勒增益，束线取向或门位置与扫描线之间的交点，孔径尺寸或其他频谱多普勒发射 或接收影响频谱多普勒成像的参数。 处理器自动计算一个或多个频谱多普勒参数的设置或值，导致比用户设置提供的更客观的优化。