公开(公告)号：US20070066896A1

公开(公告)日：2007-03-22

申请号：US11233550

申请日：2005-09-22

申请人： Constantine Simopoulos ,  Kutay Ustuner

发明人： Constantine Simopoulos ,  Kutay Ustuner

IPC分类号： A61B8/00

CPC分类号： G01S15/584 ,  G01S15/8979

摘要： Phase unwrapping is applied to velocity data to remove aliasing artifacts. Phase unwrapping is applied on multidimensional regions of velocity data. The unwrapped velocity image is displayed. The displayed image may have high sensitivity to slow motion but may also avoid aliasing of fast motion despite being undersampled.

摘要翻译： 相位展开应用于速度数据以消除混叠伪像。 相位展开应用于速度数据的多维区域。 显示展开的速度图像。 显示的图像可能对慢动作具有高灵敏度，但也可以避免快速运动的混叠，尽管被欠采样。

公开(公告)号：US20070014446A1

公开(公告)日：2007-01-18

申请号：US11157412

申请日：2005-06-20

申请人： Thilaka Sumanaweera ,  Kutay Ustuner

发明人： Thilaka Sumanaweera ,  Kutay Ustuner

IPC分类号： G06K9/00

CPC分类号： G06T15/50 ,  G06T15/08 ,  G06T15/40

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。

公开(公告)号：US20050093859A1

公开(公告)日：2005-05-05

申请号：US10701910

申请日：2003-11-04

申请人： Thilaka Sumanaweera ,  Kutay Ustuner

发明人： Thilaka Sumanaweera ,  Kutay Ustuner

IPC分类号： A61B8/14 ,  G01S15/89 ,  G02B27/22 ,  G03B42/06 ,  G06T15/08 ,  G06T15/00

CPC分类号： G06T15/08 ,  A61B8/483 ,  G01S15/8993

摘要： To improve real time 3D imaging performance, acquisition, beamforming, coherent image forming and/or image processing parameters are varied as a function of the viewing direction selected by the user. For example, the scan planes are oriented relative to the viewing direction. As a result rapid 3D rendering is provided without complex additional data interpolation or other 3D rendering processes. In another example, data along the lateral axis that is perpendicular to the viewing direction (i.e., display lateral axis) is acquired with parameters adapted to maximize field of view, detail and contrast resolution, while data along the lateral axis that is parallel to the viewing direction is acquired with compromised field of view, detail or contrast resolution. As a result, a high volume rate 3D imaging is achieved with 2D-equivalent detail resolution, contrast resolution and field of view along the display lateral axis.

摘要翻译： 为了提高实时3D成像性能，采集，波束赋形，相干图像形成和/或图像处理参数根据用户选择的观看方向而变化。 例如，扫描平面相对于观察方向定向。 因此，提供快速3D渲染，而无需复杂的附加数据插值或其他3D渲染过程。 在另一示例中，采用适于最大化视场，细节和对比度分辨率的参数来获取横向轴线垂直于观察方向的数据（即，显示横向轴线），而沿着横向轴线的平行于 观察方向是以受损的视野，细节或对比度分辨率获得的。 结果，利用2D等效的细节分辨率，对比度分辨率和沿着显示器横向轴的视场来实现高体积率3D成像。

公开(公告)号：US06312386B1

公开(公告)日：2001-11-06

申请号：US09253088

申请日：1999-02-19

申请人： Mirsaid Bolorforosh ,  Ching-Hua Chou ,  Albert Gee ,  Sungrung Huang ,  Kutay Ustuner

发明人： Mirsaid Bolorforosh ,  Ching-Hua Chou ,  Albert Gee ,  Sungrung Huang ,  Kutay Ustuner

IPC分类号： A61B800

CPC分类号： G10K11/346

摘要： A medical ultrasound diagnostic imaging system includes a delay system that applies a composite delay profile to signals to or from respective transducer elements. One composite delay profile includes a first, substantially point-focus delay profile for a first set of the transducer elements and a second, substantially point-focus delay profile for a second set of the transducer elements. The first and second delay profiles cause ultrasonic energy from the respective first and second sets of the transducer elements to constructively add at first and second respective spaced focal zones in either transmit or receive. Another composite delay profile includes first and second portions that substantially correspond to respective parts of a point-focus delay profile, and third and fourth portions that are intermediate the point-focus delay profile and respective tangents.

摘要翻译： 医疗超声诊断成像系统包括延迟系统，该延迟系统将复合延迟分布应用于来自相应换能器元件的信号。 一个复合延迟分布包括用于第一组换能器元件的第一基本点聚焦延迟分布和用于第二组换能器元件的第二基本点聚焦延迟分布。 第一和第二延迟分布引起来自相应的第一组和第二组换能器元件的超声波能量以在发射或接收中的第一和第二相应间隔的聚焦区建设性地增加。 另一个复合延迟分布包括基本对应于点聚焦延迟分布的各个部分的第一和第二部分以及位于点聚焦延迟分布和相应切线之间的第三和第四部分。

公开(公告)号：US20090203997A1

公开(公告)日：2009-08-13

申请号：US12027957

申请日：2008-02-07

申请人： Kutay Ustuner

发明人： Kutay Ustuner

IPC分类号： A61B8/00

CPC分类号： A61B8/08 ,  A61B8/485 ,  G01S7/52042 ,  G01S7/5206 ,  G01S7/52071 ,  G01S15/8995

摘要： Artifacts in ultrasound displacement images are reduced by combining multiple component displacement images. For each component displacement image first a pre-displacement ultrasound image is generated from a particular imaging angle. Then a displacement force is applied on the object at a desired displacement angle via an ultrasound or other mechanical force. Then a post-displacement ultrasound image is generated from the same imaging angle. A component displacement image is generated by correlating the pre-displacement and post-displacement ultrasound images. The above steps are repeated for at least one other (imaging angle, displacement angle) pair, and the resulting component displacement images are combined to reduce displacement image artifacts.

摘要翻译： 通过组合多组分位移图像来减少超声位移图像中的伪像。 对于每个分量位移图像，首先从特定成像角度生成预位移超声图像。 然后，通过超声波或其他机械力，以期望的位移角度对物体施加位移力。 然后从相同的成像角度生成位移后超声图像。 通过将前置位移和后位移超声图像相关联来生成分量位移图像。 对于至少一个其它（成像角度，位移角）对重复上述步骤，并且组合所得到的分量位移图像以减少位移图像伪像。

公开(公告)号：US20070173722A1

公开(公告)日：2007-07-26

申请号：US11724526

申请日：2007-03-14

申请人： Kutay Ustuner ,  Albert Gee

发明人： Kutay Ustuner ,  Albert Gee

IPC分类号： A61B8/00

CPC分类号： A61B8/5269 ,  G01S7/52047 ,  G10K11/346

摘要： Adaptive grating lobe suppression is provided. Received ultrasound data is measured, compared or otherwise processed to determine the presence of grating lobe energy. A further process is then altered as a function of the level of grating lobe energy. In one embodiment, the adaptive grating lobe suppression is implemented in the receive beamformer. Data representing a virtual element is formed as a normalized sum of data from adjacent sparse elements. The data from the adjacent elements is correlated to determine the presence of grating lobe energy as a function of the amount of shift associated with the peak correlation. A phase shift is applied to the data representing the virtual element where sufficient grating lobe energy is determined. In another embodiment, an amount of grating lobe energy is measured by comparing data from prior to a filter with filtered data. The filter is selected to isolate main lobe energy from grating lobe energy. A gain is modulated as a function of any detected grating lobe energy or filtered or unfiltered data is selected for further processing.

公开(公告)号：US20070038108A1

公开(公告)日：2007-02-15

申请号：US11303622

申请日：2005-12-15

申请人： Xiaohui Hao ,  Kutay Ustuner ,  Gregory Holley ,  Seshadri Srinivasan ,  Albert Gee

发明人： Xiaohui Hao ,  Kutay Ustuner ,  Gregory Holley ,  Seshadri Srinivasan ,  Albert Gee

IPC分类号： A61B8/00

CPC分类号： A61B8/06 ,  A61B8/488 ,  G01S7/52038 ,  G01S15/8954 ,  G01S15/8959 ,  G01S15/8979

摘要： Diagnostic ultrasound flow imaging is performed with coded excitation pulses. Due to the use of frequency coded excitation pulses, flow information may suffer from spatial misregistration and estimate errors. Spatial position shift in flow data is offset for alignment with B-mode or other imaging. The flow estimates are compensated for the imaging center frequency variation with depth. The wide bandwidth information available due to coded excitation may allow anti-aliasing by estimating velocities from two frequency bands.

摘要翻译： 用编码的激发脉冲进行诊断超声波成像。 由于使用频率编码的激励脉冲，流量信息可能会受到空间重合失调和估计误差的困扰。 流量数据中的空间位置偏移偏移以与B模式或其他成像对齐。 影像中心频率随深度的变化而补偿流量估计值。 由于编码激励可用的宽带宽信息可以通过估计来自两个频带的速度来允许抗混叠。

公开(公告)号：US20050228280A1

公开(公告)日：2005-10-13

申请号：US10815022

申请日：2004-03-31

申请人： Kutay Ustuner ,  Joan Main ,  Mani Vannan

发明人： Kutay Ustuner ,  Joan Main ,  Mani Vannan

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

CPC分类号： G01S7/52074 ,  A61B8/06 ,  A61B8/13 ,  A61B8/14 ,  A61B8/483 ,  G01S7/52085 ,  G01S15/8993

摘要： An effective method to attain high volume rates in real-time three-dimensional ultrasound imaging is to reduce the lateral scan extent in azimuth and/or elevation. Reducing the scan extent, however, may make it difficult to determine the anatomical orientation during scan, or post-scan review. Anatomical landmark information is provided, with only a small impact on the volume rate by scanning along a two-dimensional plane with a greater lateral extent than a three-dimensional volume scan or by scanning over a three-dimensional volume with a lower resolution than a higher resolution sub-volume scan. The lower resolution three-dimensional image or the two-dimensional image scan provides anatomical landmark information. The higher resolution or smaller three-dimensional volume scan provides information for diagnosis of a specific region with three-dimensional imaging.

摘要翻译： 在实时三维超声成像中获得高体积率的有效方法是减少方位和/或仰角的横向扫描范围。 然而，减少扫描范围可能使得难以在扫描或扫描后检查中确定解剖学取向​​。 通过沿着具有比三维体积扫描更大的横向范围的二维平面进行扫描，或者以比分辨率低于三维体积扫描的三维体积扫描，提供解剖标志信息，对体积率影响很小 更高分辨率的子卷扫描。 较低分辨率的三维图像或二维图像扫描提供解剖学地标信息。 更高分辨率或更小的三维体积扫描提供用于诊断具有三维成像的特定区域的信息。

公开(公告)号：US20050228279A1

公开(公告)日：2005-10-13

申请号：US10814959

申请日：2004-03-31

申请人： Kutay Ustuner ,  Pai-Chi Li ,  Meng-Lin Li ,  Lewis Thomas ,  Albert Gee

发明人： Kutay Ustuner ,  Pai-Chi Li ,  Meng-Lin Li ,  Lewis Thomas ,  Albert Gee

IPC分类号： A61B8/14 ,  G01S7/52

CPC分类号： G01S15/8927 ,  G01S7/52049

摘要： Ultrasound imaging adapts as a function of a coherence factor. Various beamforming, image forming or image processing parameters are varied as a function of a coherence factor to improve detail resolution, contrast resolution, dynamic range or SNR. For example, a beamforming parameter such as the transmit or receive aperture size, apodization type or delay is selected to provide maximum coherence. Alternatively or additionally, an image forming parameter, such as the number of beams for coherent synthesis or incoherent compounding, is set as a function of the coherence factor. Alternatively or additionally an image processing parameter such as the dynamic range, linear or nonlinear video filter and/or linear or nonlinear map may also adapt as a function of the coherence factor.

摘要翻译： 超声成像适应相干因子的函数。 各种波束成形，图像形成或图像处理参数作为相干因子的函数而变化，以提高细节分辨率，对比度分辨率，动态范围或SNR。 例如，选择诸如发射或接收孔径大小，变迹类型或延迟的波束形成参数以提供最大相干性。 或者或另外，将诸如用于相干合成或非相干复合的光束的数量的图像形成参数设置为相干因子的函数。 替代地或附加地，诸如动态范围，线性或非线性视频滤波器和/或线性或非线性映射的图像处理参数也可以作为相干因子的函数来适应。

公开(公告)号：US06704437B1

公开(公告)日：2004-03-09

申请号：US09431304

申请日：1999-10-29

申请人： Anming He ,  Kutay Ustuner

发明人： Anming He ,  Kutay Ustuner

IPC分类号： G06K900

CPC分类号： G06T5/002 ,  G06T5/20 ,  G06T2207/10132 ,  G06T2207/30004

摘要： A noise-adaptive method for processing an ultrasonic image set forms a filtered image set having a selectively enhanced noise component as compared to the original image set. A noise parameter is generated as a function of the image set and the filtered image set, and then the noise parameter is used in ultrasonic image processing. A background noise image is generated from the noise parameter and the original image and is used in ultrasonic image processing.

摘要翻译： 用于处理超声波图像集的噪声自适应方法形成与原始图像集相比具有选择性增强的噪声分量的滤波图像集合。 根据图像集和滤波图像集合生成噪声参数，然后在超声波图像处理中使用噪声参数。 从噪声参数和原始图像生成背景噪声图像，并用于超声波图像处理。