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1.发明授权公开(公告)号：US07744538B2
公开(公告)日：2010-06-29
申请号：US10979584
申请日：2004-11-01
IPC分类号： A61B8/00
CPC分类号： G01S15/8979 , A61B8/06 , A61B8/13 , G01S7/5206 , Y10S128/916
摘要： Minimum arc interpolation is performed on velocity information distributed in three dimensions. By using complex representations of the velocity information, the interpolation may more accurately represent the angle or velocity for spatial conversion. Tri-linearly interpolating velocity information converts the information representing a three-dimensional volume to a reconstruction grid. The interpolation is performed with a graphics processing unit. Complex representations of the velocity are loaded as texture data. The graphics processing unit interpolates the data as texture fields. Look-up tables are used to determine an angle from the interpolated complex representation and/or a color value for displaying velocities associated with different spatial locations.
摘要翻译： 对三维分布的速度信息执行最小弧插补。 通过使用速度信息的复杂表示，插值可以更精确地表示用于空间转换的角度或速度。 三线性内插速度信息将表示三维体积的信息转换成重建网格。 用图形处理单元执行插值。 速度的复杂表示作为纹理数据加载。 图形处理单元将数据内插为纹理区域。 查找表用于从内插复数表示中确定角度和/或用于显示与不同空间位置相关联的速度的颜色值。
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公开(公告)号：US07852335B2
公开(公告)日：2010-12-14
申请号：US11903322
申请日：2007-09-20
IPC分类号： G06T17/20
CPC分类号： G06T19/00 , G06T15/08 , G06T2219/008
摘要： An intersection of a cut plane with a proxy geometry representing a scan volume is determined with a processor. The intersection is simplified, such as identifying a quadrilateral or triangle most closely enclosing the intersection. The vertex processor of a GPU deforms a reference grid and determines Cartesian coordinates and the texture coordinates for grid points of the reference grid as a function of the input intersection. The vertex processor provides coordinates for data for subsets of cut planes. The fragment processor inputs the texture coordinates and retrieves the data from the texture memory. The data is blended. The blended subsets are then blended together in the frame buffer of the GPU.
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公开(公告)号：US06780152B2
公开(公告)日：2004-08-24
申请号：US10180386
申请日：2002-06-26
申请人： Kutay F. Üstüner , Thilaka S. Sumanaweera , Sevig Ayter , Kenneth M. Fowkes , John A. Hossack , John W. Allison
发明人： Kutay F. Üstüner , Thilaka S. Sumanaweera , Sevig Ayter , Kenneth M. Fowkes , John A. Hossack , John W. Allison
IPC分类号： A61B800
CPC分类号： A61B8/5284 , A61B8/08 , A61B8/0883 , A61B8/4245 , A61B8/483 , G01S7/52074 , G01S15/8993 , G01S15/8995
摘要： Images of the heart are formed by using multiple sets of ultrasound data. Each set of data is acquired and processed responsive to a different set of imaging parameters. The imaging parameter sets differ in at least one parameter, such as array position, temporal frequency response or transmit focal depth, so that the images formed using these data sets have, either laterally or axially, different spatial spectra. A set of images is formed responsive to a first imaging parameter set for a first cardiac cycle. Another set of images is formed responsive to a second imaging parameter set for a second cardiac cycle. The two sets of images are temporally aligned so that they correspond to the same set of phases of the cardiac cycle. Since the data acquisition and processing are distributed over multiple cycles of the motion, assuming regular periodic heart cycle, temporal resolution is maintained.
摘要翻译： 通过使用多组超声数据形成心脏的图像。 响应于不同的成像参数集，获取和处理每组数据。 成像参数集在至少一个参数（例如阵列位置，时间频率响应或发射焦深）上不同，使得使用这些数据集形成的图像具有横向或轴向不同的空间光谱。 响应于为第一心动周期设置的第一成像参数形成一组图像。 响应于为第二心动周期设置的第二成像参数形成另一组图像。 这两组图像在时间上对准，使得它们对应于心动周期的相同的一组相位。 由于数据采集和处理分布在运动的多个周期上，假设定期周期性的心脏周期，维持时间分辨率。
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公开(公告)号：US06659953B1
公开(公告)日：2003-12-09
申请号：US10251044
申请日：2002-09-20
IPC分类号： A61B800
CPC分类号： G06T3/0093 , A61B8/14 , A61B8/481 , G06T7/246
摘要： An ultrasound image is morphed for perfusion assessment. Various images within a sequence of images or movie clip are mapped to one frame of reference using local warping. Nonlinear local image transformations or other warping based on local estimates of motion are used to interpolate different images to the common reference. The elastic stretching and compression of local image data results in a sequence of images where the same spatial location in each image represents the substantially same spatial location of the imaged tissue. The organ, tissue or region of interest is stationary throughout the sequence of images.
摘要翻译： 用超声波图像进行灌注评估。 图像或影片剪辑序列中的各种图像使用局部扭曲被映射到一个参考帧。 使用基于局部运动估计的非线性局部图像变换或其他翘曲来将不同图像内插到公共参考。 局部图像数据的弹性拉伸和压缩导致图像序列，其中每个图像中相同的空间位置代表成像组织的基本相同的空间位置。 感兴趣的器官，组织或区域在整个图像序列中是静止的。
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5.发明授权Two-dimensional ultrasonic transducer array having transducer elements in a non-rectangular or hexagonal grid for medical diagnostic ultrasonic imaging and ultrasound imaging system using same 有权具有用于医学诊断超声成像的非矩形或六边形网格中的换能器元件和使用其的超声成像系统的二维超声换能器阵列公开(公告)号：US06503204B1
公开(公告)日：2003-01-07
申请号：US09540384
申请日：2000-03-31
IPC分类号： A61B800
CPC分类号： B06B1/0622 , A61B8/4494 , A61B8/483 , G01S15/8925 , Y10T29/42
摘要： Two-dimensional transducer arrays used for one-, two- and three-dimensional medical diagnostic ultrasonic imaging. The transducer arrays have transducer elements that are arranged in a non-rectangular, and preferably hexagonal grid. In a preferred embodiment, the transducer array has hexagonally shaped transducer elements. The transducer arrays may be fabricated as single or multiple layer structures. Sparse transducer arrays may be fabricated in a hexagonal grid by connecting selected transducer elements to the imaging system. Also, the transducer array may comprise random, vernier and spiral arrays fabricated in a hexagonal grid.
摘要翻译： 用于一维，二维和三维医学诊断超声成像的二维换能器阵列。 换能器阵列具有布置在非矩形且优选六边形网格中的换能器元件。 在优选实施例中，换能器阵列具有六边形形状的换能器元件。 换能器阵列可以制造为单层或多层结构。 可以通过将所选择的换能器元件连接到成像系统来将稀疏换能器阵列制造成六边形网格。 此外，换能器阵列可以包括以六边形网格制造的随机，游标和螺旋阵列。
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公开(公告)号：US5967987A
公开(公告)日：1999-10-19
申请号：US993948
申请日：1997-12-18
IPC分类号： A61B8/06
摘要： In an ultrasound system and method, a transducer connects to an estimator for obtaining first and second blood flow parameters associated with first and second scan line directions, respectively, in a first scan plane. One beam substantially covering a cross-sectional area of a tubular structure (uniform insonification) or a plurality of beams may be used. A first area associated with the cross-section of the tubular structure is also estimated from the blood flow parameters. The process is repeated for a plurality of scan planes. A processor determines the cross-sectional area of the tubular structure perpendicular to its axis (a second area), the average velocity of flow parallel to the axis, and the volume flow as a function of the first area and the first and second blood flow parameters of all the scan planes. For real-time volume flow, the orientation of the tubular structure is determined using the second area and the first and second blood flow parameters. As measurements are made, the orientation information is used to derive the real-time volume flow.
摘要翻译： 在超声系统和方法中，换能器连接到估计器，用于分别在第一扫描平面中获得与第一和第二扫描线方向相关联的第一和第二血流参数。 可以使用基本上覆盖管状结构的横截面（均匀的非均匀化）或多个梁的一个梁。 还根据血流参数估计与管状结构的横截面相关联的第一区域。 对于多个扫描平面重复该过程。 处理器确定垂直于其轴线（第二区域）的管状结构的横截面面积，平行于轴线的平均流速，以及作为第一区域和第一和第二血流量的函数的体积流量 所有扫描平面的参数。 对于实时体积流量，使用第二区域和第一和第二血流参数确定管状结构的取向。 在进行测量时，使用方位信息来导出实时体积流。
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公开(公告)号：US07764818B2
公开(公告)日：2010-07-27
申请号：US11157412
申请日：2005-06-20
IPC分类号： G06K9/00
摘要： The depth buffer of a GPU is used to derive a surface normal or other surface parameter, avoiding or limiting computation of spatial gradients in 3D data sets and extra loading of data into the GPU. The surface parameter is used: to add shading with lighting to volume renderings of ultrasound data in real time, to angle correct velocity estimates, to adapt filtering or to correct for insonifying-angle dependent gain and compression. For border detection and segmentation, intersections with a volume oriented as a function of target structure, such as cylinders oriented relative to a vessel, are used for rendering. The intersections identify data for loading into the frame buffer for rendering.
摘要翻译： GPU的深度缓冲器用于导出表面法线或其他表面参数，避免或限制3D数据集中的空间梯度的计算以及将数据额外加载到GPU中。 使用表面参数：通过照明将阴影添加到实时超声数据的体积渲染中，对角度正确的速度估计，适应滤波或校正失真角依赖增益和压缩。 对于边界检测和分割，使用与目标结构相关的体积定向的交点，例如相对于血管定向的圆柱体，用于渲染。 交叉点识别用于加载到帧缓冲器中的数据用于呈现。
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8.发明授权Medical diagnostic ultrasonic imaging method and system for displaying multi-phase, multi-frame images 有权医学诊断超声成像方法和显示多相，多帧图像的系统公开(公告)号：US07756304B2
公开(公告)日：2010-07-13
申请号：US09369510
申请日：1999-08-06
IPC分类号： G06K9/00
CPC分类号： A61B8/08 , A61B8/0883 , A61B8/483 , A61B8/543 , G01S7/52034 , G01S7/52065 , G01S7/52087 , G01S15/8993 , G06F19/00 , G06F19/321 , G16H40/63 , G16H50/50 , Y10S128/922
摘要： A medical diagnostic ultrasonic imaging system acquires image data for at least two frames at each of multiple positions, each frame identified with a respective phase of a physiological cycle. A multiphase 3-D or extended field of view data set is constructed from the image data. Then a plurality of images are generated from the multiphase data set. Each image is associated with a respective phase of the physiological cycle, and these images are displayed in sequence to a user.
摘要翻译： 医疗诊断超声成像系统在多个位置的每一个处获取至少两帧的图像数据，每个帧用生理周期的相应相位标识。 从图像数据构建多相3-D或扩展视场数据集。 然后，从多相数据集生成多个图像。 每个图像与生理周期的相应相关联，并且这些图像依次显示给用户。
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9.发明授权Diagnostic medical ultrasound systems and methods using image based freehand needle guidance 有权诊断医学超声系统和使用图像的徒手指导的方法公开(公告)号：US06733458B1
公开(公告)日：2004-05-11
申请号：US09962488
申请日：2001-09-25
IPC分类号： A61B814
CPC分类号： A61B8/0833 , A61B8/0841 , A61B8/4245 , A61B8/4254 , G01S7/52074 , G01S15/8925
摘要： A diagnostic medical ultrasound system having an integrated invasive medical device guidance system is disclosed. The guidance system obtains image slice geometry and other imaging parameters from the ultrasound system to optimize the guidance computations and visual representations of the invasive medical device and the imaged portion of the subject. Further, the ultrasound system obtains guidance data indicating the relative location, i.e. position and/or orientation of the invasive medical device relative to the transducer and imaging plane to optimize the imaging plane and ultrasound beam characteristics to automatically optimally image both the imaged portion of the subject and the invasive medical device.
摘要翻译： 公开了一种具有集成的侵入性医疗装置引导系统的诊断医疗超声系统。 引导系统从超声系统获得图像切片几何和其他成像参数，以优化侵入性医疗装置和受试者的成像部分的引导计算和视觉表示。 此外，超声系统获得指示相对位置（即相对于换能器和成像平面的位置和/或取向）的指导数据，以优化成像平面和超声波束特性，以自动最佳地成像图像的成像部分 受试者和侵入性医疗器械。
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公开(公告)号：US06293914B1
公开(公告)日：2001-09-25
申请号：US09144587
申请日：1998-08-31
IPC分类号： A61B800
CPC分类号： A61B8/06 , A61B8/488 , G01S15/582 , G01S15/8979
摘要： A system and methods for measuring the volume flow of fluid in an enclosed structure with an ultrasound system is provided. Manual designation of flow angles and areas may not be necessary. Velocities along two or more different scan lines in a first scan plane are obtained to determine an angle of flow within the enclosed structure. A Doppler spectrum parameter is measured from a transmission in a second scan plane substantially perpendicular to the first scan plane. Volume flow is calculated from the flow angle and the parameter. The scan planes are associated with rotating a linear array transducer or holding a multi-dimensional transducer in place. A C-scan method with a linear transducer may also be used.
摘要翻译： 提供了一种用于测量具有超声系统的封闭结构中的流体的体积流量的系统和方法。 可能无需手动指定流量角和区域。 获得沿着第一扫描平面中的两条或更多条不同扫描线的速度，以确定封闭结构内的流动角。 从基本上垂直于第一扫描平面的第二扫描平面中的透射测量多普勒频谱参数。 体积流量根据流角和参数计算。 扫描平面与旋转线性阵列换能器或将多维换能器保持在适当位置相关联。 还可以使用具有线性换能器的C扫描方法。
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