公开(公告)号：US5899861A

公开(公告)日：1999-05-04

申请号：US728280

申请日：1996-10-08

申请人： Barry H. Friemel ,  Lee Weng ,  Tat-Jin Teo ,  Katherine G. Brown

发明人： Barry H. Friemel ,  Lee Weng ,  Tat-Jin Teo ,  Katherine G. Brown

IPC分类号： A61B8/08 ,  G01S7/52 ,  G01S15/89 ,  G06T7/20 ,  A61B8/00

CPC分类号： G06K9/32 ,  A61B8/0866 ,  A61B8/4254 ,  A61B8/463 ,  A61B8/483 ,  G01S15/8993 ,  G01S7/5205 ,  G01S7/52074 ,  G06T7/2033 ,  A61B8/0833 ,  G01S15/8934 ,  G01S15/8977 ,  G01S7/52065 ,  G01S7/52068 ,  G01S7/52073 ,  G06K2009/2045 ,  Y10S128/916

摘要： A 3D field of view ultrasound image volume is derived from correlated frames of ultrasound image data. An operator manually translates an ultrasound probe across a patient target area. Frames of sensed echo signals are processed to detect probe motion using beam data registration and correlation techniques. Motion is detected by correlating the frames for probe translation among as many as 6 degrees of freedom. Image registration then is performed for correlated portions to accumulate a large ultrasound image. Such image encompasses an area larger than a single field of view image frame for the given manually-scanned transducer probe.

摘要翻译： 从超声图像数据的相关帧导出3D视野超声图像体积。 操作者手动地将超声波探头翻转到患者目标区域上。 使用波束数据配准和相关技术来处理检测到的回波信号的帧以检测探测器运动。 通过将多达6个自由度的探针转换的帧相关联来检测运动。 然后对相关部分执行图像配准以累积大的超声图像。 这种图像包括对于给定的手动扫描的换能器探头大于单个视场图像帧的区域。

公开(公告)号：US5655535A

公开(公告)日：1997-08-12

申请号：US622904

申请日：1996-03-29

申请人： Barry H. Friemel ,  Lee Weng ,  Tat-Jin Teo

发明人： Barry H. Friemel ,  Lee Weng ,  Tat-Jin Teo

IPC分类号： A61B8/08 ,  A61B8/14 ,  G01S7/52 ,  G01S15/89 ,  G06T7/20 ,  A61B8/00

CPC分类号： G01S7/52065 ,  A61B8/0866 ,  A61B8/14 ,  A61B8/4254 ,  A61B8/463 ,  A61B8/483 ,  G01S15/8993 ,  G06T7/2033 ,  A61B8/0833 ,  G01S7/52073 ,  Y10S128/916

摘要： A compounded field of view ultrasound image is derived from correlated frames of ultrasound image data. An operator manually translates an ultrasound probe across a patient target area. Frames of sensed echo signals are processed to detect probe motion without the use of a dedicated position sensor or motion sensor. Motion is detected by correlating the frames for probe translation among as many as 6 degrees of freedom. Image registration then is performed for correlated portions to compound a large ultrasound image. Such image encompasses an area larger than a single field of view image frame for the given manually-scanned transducer probe.

摘要翻译： 复合视场超声图像是从超声图像数据的相关帧中得出的。 操作者手动地将超声波探头翻转到患者目标区域上。 感测到的回波信号的帧被处理以检测探测器运动，而不使用专用位置传感器或运动传感器。 通过将多达6个自由度的探针转换的帧相关联来检测运动。 然后对相关部分执行图像配准以复合大型超声图像。 这种图像包括对于给定的手动扫描的换能器探头大于单个视场图像帧的区域。

公开(公告)号：US06364838B1

公开(公告)日：2002-04-02

申请号：US09481133

申请日：2000-01-11

申请人： Paul D. Freiburger ,  Barry H. Friemel

发明人： Paul D. Freiburger ,  Barry H. Friemel

IPC分类号： A61B806

CPC分类号： G01S15/8979 ,  G01S7/52046

摘要： A method for producing Doppler ultrasound data at a user-requested pulse repetition frequency (PRF) utilizing undersampled echo signals. Echo signals are created in response to Doppler pulses that are transmitted into the patient at a rate less than a desired PRF. The echo signals are analyzed in the time domain to determine a velocity of scatterers in an area of tissue defined by a range gate. From the velocity, the Doppler shift of the scatterers is determined. The echo signals are interpolated to produce a number of samples equal in number to that which would have been produced had the Doppler pulses been transmitted at the user-requested PRF. The interpolated echo signals are then analyzed in the frequency domain which produces a number of spectra indicative of the velocity and direction of the moving scatterers. From the Doppler shift determined, the correct spectra is selected and displayed for a user. In addition, the present invention can be used to increase the amplitude of the pulses transmitted into a patient by lowering the transmit pulse frequency so that the total amount of ultrasonic energy delivered to the patient remains the same. The larger amplitude transmit pulses produce echo signals having a better signal-to-noise ratio.

摘要翻译： 一种利用欠采样回波信号在用户请求的脉冲重复频率（PRF）下产生多普勒超声数据的方法。 响应于多普勒脉冲产生回波信号，该多普勒脉冲以小于所需PRF的速率传送到患者体内。 在时域中分析回波信号以确定由范围门限定的组织区域中的散射体的速度。 根据速度，确定散射体的多普勒频移。 回波信号被内插以产生数量数量，其数量与在用户请求的PRF发送多普勒脉冲时将产生的数量相等。 然后在频域中分析内插的回波信号，该频域产生指示运动散射体的速度和方向的多个光谱。 根据确定的多普勒频移，为用户选择并显示正确的频谱。 此外，本发明可以用于通过降低发射脉冲频率来增加发送到患者的脉冲的幅度，从而传递给患者的超声能量的总量保持不变。 较大幅度的发射脉冲产生具有更好的信噪比的回波信号。

公开(公告)号：US6162174A

公开(公告)日：2000-12-19

申请号：US154535

申请日：1998-09-16

申请人： Barry H. Friemel

发明人： Barry H. Friemel

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

CPC分类号： G01S15/8993 ,  G01S7/52026 ,  G01S7/5205

摘要： A method for producing interpolated ultrasound images by storing at least two sequential ultrasound images and detecting the movement of objects of interest within two sequential images. A movement vector is then determined that describes the movement of each object within an image. One or more interpolated images are then produced by combining data from two sequential ultrasound images and the movement vectors. In addition, three-dimensional ultrasound images can be compensated for movement of a transducer or object of interest. At least two sequential ultrasound images are obtained and movement vectors are calculated for each object of interest. After determining the movement vectors, the images are compensated for the movement to realign the object of interest. The compensated images are then combined to produce three dimensional images.

摘要翻译： 一种用于通过存储至少两个顺序超声图像并检测两个顺序图像内的感兴趣对象的移动来产生内插超声图像的方法。 然后确定描述图像内的每个对象的移动的运动矢量。 然后通过组合来自两个连续超声图像的数据和运动矢量来产生一个或多个内插图像。 此外，三维超声图像可以补偿换能器或感兴趣对象的移动。 获得至少两个连续的超声图像，并计算每个感兴趣对象的运动矢量。 在确定运动矢量之后，补偿图像以重新对准感兴趣的对象。 然后将补偿的图像组合以产生三维图像。

公开(公告)号：US5776066A

公开(公告)日：1998-07-07

申请号：US723170

申请日：1996-09-30

申请人： Levin F. Nock ,  Barry H. Friemel

发明人： Levin F. Nock ,  Barry H. Friemel

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

CPC分类号： G01S7/52046 ,  A61B8/08 ,  G01S15/8977

摘要： A method for creating ultrasound images determines if an ultrasound transducer is moving by more than a predetermined amount by obtaining two conventionally focused images D.sub.K-1 and D.sub.K. Each image is divided into a series of sections. An image processor searches the previous frame D.sub.K-1 for data points found in the current frame D.sub.K. Movement vectors are defined for each section that describe how the data points of a section move from the previous frame D.sub.K-1 to the current frame D.sub.K. The movement vectors are then applied to sections of a previously displayed adaptively focused frame I.sub.K-1 in order to create a translated adaptively focused frame I.sub.K-1'. A new adaptively focused frame is created by averaging the current adaptively focused frame A.sub.K with the translated frame I.sub.K-1'.

摘要翻译： 用于创建超声图像的方法通过获得两个常规聚焦图像DK-1和DK来确定超声换能器是否移动超过预定量。 每个图像分为一系列部分。 图像处理器在前一帧DK-1中搜索在当前帧DK中找到的数据点。 为描述区段的数据点如何从前一帧DK-1移动到当前帧DK的每个区段定义移动向量。 然后将运动矢量应用于先前显示的自适应聚焦帧IK-1的部分，以便创建翻译的自适应聚焦帧IK-1'。 通过将当前自适应聚焦的帧AK与被翻译的帧IK-1'进行平均来创建新的自适应聚焦帧。