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    Combining X-ray and ultrasound imaging for enhanced mammography
    1.
    发明授权
    Combining X-ray and ultrasound imaging for enhanced mammography 有权
    结合X射线和超声成像增强乳房X线照相术

    公开(公告)号：US07831015B2

    公开(公告)日：2010-11-09

    申请号：US12415637

    申请日：2009-03-31

    申请人： Baojun Li ,  Jean-Baptiste Thibault ,  Anne Lindsay Hall

    发明人： Baojun Li ,  Jean-Baptiste Thibault ,  Anne Lindsay Hall

    IPC分类号： A61B6/04 ,  A61B8/00

    CPC分类号： A61B6/032 ,  A61B6/0435 ,  A61B6/4417 ,  A61B6/466 ,  A61B6/502 ,  A61B6/5247 ,  A61B8/0825 ,  A61B8/406 ,  A61B8/4416

    摘要： A mammography system includes a patient support with a breast opening. Beneath the patient support, an x-ray source transmits x-rays through a breast of a patient extending through the opening. An opposing x-ray detector receives the x-rays to obtain an x-ray image of the breast. The x-ray source and x-ray detector rotate around the opening while maintaining a fixed relation relative to one another, and a container is filled with a fluid and positioned proximate to and aligned with the opening to receive the breast. An ultrasound transmitter transmits sound waves through the breast when positioned within the fluid. An opposing ultrasound receiver receives the sound waves to obtain an ultrasound image of the breast. In a preferred embodiment, the mammography system positions the ultrasound transmitter and/or ultrasound receiver at a first position when obtaining the x-ray image of the breast and a second position when obtaining the ultrasound image of the breast. In other preferred embodiments, mammography methods correspond thereto.

    摘要翻译： 乳房X线照相系统包括具有胸部开口的患者支架。 在患者支架下方，x射线源通过穿过开口的患者的乳房透射x射线。 相对的X射线检测器接收x射线以获得乳房的X射线图像。 X射线源和X射线检测器围绕开口旋转，同时保持相对于彼此的固定关系，并且容器填充有流体并且定位成靠近开口并与开口对准以接收乳房。 当定位在流体内时，超声波发射器通过乳房发射声波。 相对的超声波接收器接收声波以获得乳房的超声图像。 在优选实施例中，当获得乳房的X射线图像时，乳房X线照相系统将超声波发射器和/或超声波接收器定位在第一位置，并且当获得乳房的超声图像时将其定位在第二位置。 在其它优选实施例中，乳房X线照相术方法对应于此。

    COMBINING X-RAY AND ULTRASOUND IMAGING FOR ENHANCED MAMMOGRAPHY
    2.
    发明申请
    COMBINING X-RAY AND ULTRASOUND IMAGING FOR ENHANCED MAMMOGRAPHY 有权
    组合X射线和超声波成像增强动画

    公开(公告)号：US20100246760A1

    公开(公告)日：2010-09-30

    申请号：US12415637

    申请日：2009-03-31

    申请人： Baojun Li ,  Jean-Baptiste Thibault ,  Anne Lindsay Hall

    发明人： Baojun Li ,  Jean-Baptiste Thibault ,  Anne Lindsay Hall

    IPC分类号： A61B6/04 ,  A61B8/14

    CPC分类号： A61B6/032 ,  A61B6/0435 ,  A61B6/4417 ,  A61B6/466 ,  A61B6/502 ,  A61B6/5247 ,  A61B8/0825 ,  A61B8/406 ,  A61B8/4416

    摘要： A mammography system includes a patient support with a breast opening. Beneath the patient support, an x-ray source transmits x-rays through a breast of a patient extending through the opening. An opposing x-ray detector receives the x-rays to obtain an x-ray image of the breast. The x-ray source and x-ray detector rotate around the opening while maintaining a fixed relation relative to one another, and a container is filled with a fluid and positioned proximate to and aligned with the opening to receive the breast. An ultrasound transmitter transmits sound waves through the breast when positioned within the fluid. An opposing ultrasound receiver receives the sound waves to obtain an ultrasound image of the breast. In a preferred embodiment, the mammography system positions the ultrasound transmitter and/or ultrasound receiver at a first position when obtaining the x-ray image of the breast and a second position when obtaining the ultrasound image of the breast. In other preferred embodiments, mammography methods correspond thereto.

    摘要翻译： 乳房X线照相系统包括具有胸部开口的患者支架。 在患者支架下方，x射线源通过穿过开口的患者的乳房透射x射线。 相对的X射线检测器接收x射线以获得乳房的X射线图像。 X射线源和X射线检测器围绕开口旋转，同时保持相对于彼此的固定关系，并且容器填充有流体并且定位成靠近开口并与开口对准以接收乳房。 当定位在流体内时，超声波发射器通过乳房发射声波。 相对的超声波接收器接收声波以获得乳房的超声图像。 在优选实施例中，当获得乳房的X射线图像时，乳房X线照相系统将超声波发射器和/或超声波接收器定位在第一位置，并且当获得乳房的超声图像时将其定位在第二位置。 在其它优选实施例中，乳房X线照相术方法对应于此。

    SYSTEM AND METHOD OF INCREASING TEMPORAL RESOLUTION OF AN X-RAY IMAGE
    4.
    发明申请
    SYSTEM AND METHOD OF INCREASING TEMPORAL RESOLUTION OF AN X-RAY IMAGE 有权
    增加X射线图像的时间分辨率的系统和方法

    公开(公告)号：US20120314928A1

    公开(公告)日：2012-12-13

    申请号：US13593156

    申请日：2012-08-23

    申请人： Jiang Hsieh ,  Roy-Arnulf Helge Nilsen ,  Peter Michael Edic ,  Bruno Kristiaan Bernard De Man ,  Jean-Baptiste Thibault ,  Baojun Li ,  John Lawrence Seamans

    发明人： Jiang Hsieh ,  Roy-Arnulf Helge Nilsen ,  Peter Michael Edic ,  Bruno Kristiaan Bernard De Man ,  Jean-Baptiste Thibault ,  Baojun Li ,  John Lawrence Seamans

    IPC分类号： G06K9/46

    CPC分类号： A61B6/032 ,  A61B6/482 ,  A61B6/503 ,  G06T11/006 ,  G06T2211/412 ,  G06T2211/424

    摘要： A system, method, and apparatus includes a computed tomography (CT) system having a rotatable gantry, an x-ray source, a generator, a detector having pixels and positioned to receive x-rays, and a computer. The computer is programmed to acquire CT data representative of an object, determine a first subset of the CT data, determine a second subset of the CT data, and determine a difference between the first and second subsets of the CT data to identify a motion region in the object. The computer is also programmed to update image data reconstructed from a first portion of the first subset of the CT data and corresponding to the region and reconstruct an image based on the updated image data and non-updated image data. The non-updated image data is reconstructed from a second portion the first subset of the CT data.

    摘要翻译： 系统，方法和装置包括具有可旋转机架，X射线源，发生器，具有像素并被定位成接收x射线的检测器的计算机断层摄影（CT）系统和计算机。 计算机被编程为获取表示对象的CT数据，确定CT数据的第一子集，确定CT数据的第二子集，并且确定CT数据的第一和第二子集之间的差异，以识别运动区域 在对象中。 计算机还被编程为更新从CT数据的第一子集的第一部分重建并对应于该区域的图像数据，并且基于更新的图像数据和未更新的图像数据重建图像。 从CT数据的第一子集的第二部分重构未更新的图像数据。

    Adaptive gradient weighting technique for detector bad cell correction
    7.
    发明授权
    Adaptive gradient weighting technique for detector bad cell correction 有权
    用于检测器坏细胞校正的自适应梯度加权技术

    公开(公告)号：US08699811B2

    公开(公告)日：2014-04-15

    申请号：US13009584

    申请日：2011-01-19

    申请人： Baojun Li ,  Jiang Hsieh

    发明人： Baojun Li ,  Jiang Hsieh

    IPC分类号： G06K9/40

    CPC分类号： G01T1/2985

    摘要： An imaging system includes a two-dimensional detector having a plurality of cells wherein each cell is configured to detect energy or signal passing through an object. The imaging system includes a computer programmed to acquire imaging data for the plurality of cells, identify a cell to be corrected, based on the imaging data, interpolate Ix and Iy for the identified cell based on neighbor cells, and calculate local gradients gx and gy between the identified cell and its neighbor cells based on the interpolation. The computer is further programmed to calculate weighting factors wx and wy based on the local gradients, calculate a corrected final value I(0,0) for the identified cell, and correct the identified cell with the corrected final value.

    摘要翻译： 成像系统包括具有多个单元的二维检测器，其中每个单元被配置为检测通过物体的能量或信号。 成像系统包括被编程为采集多个单元的成像数据的计算机，基于成像数据识别要校正的单元，基于相邻单元对所识别的单元插值Ix和Iy，并计算局部梯度gx和gy 基于内插，在所识别的小区及其相邻小区之间。 计算机还被编程为基于局部梯度计算加权因子wx和wy，计算所识别的单元的校正后的最终值I（0,0），并用校正的最终值校正所识别的单元。

    Systems, methods and apparatus for filtered back-projection reconstruction in digital tomosynthesis
    9.
    发明授权
    Systems, methods and apparatus for filtered back-projection reconstruction in digital tomosynthesis 有权
    用于数字断层合成过滤反投影重建的系统，方法和装置

    公开(公告)号：US07522755B2

    公开(公告)日：2009-04-21

    申请号：US11069308

    申请日：2005-03-01

    申请人： Baojun Li ,  Gopal B. Avinash ,  Renuka Uppaluri

    发明人： Baojun Li ,  Gopal B. Avinash ,  Renuka Uppaluri

    IPC分类号： G06K9/00

    CPC分类号： G06T11/006 ,  G06T11/005 ,  G06T11/008 ,  G06T2211/421 ,  G06T2211/436 ,  Y10S128/922

    摘要： Systems, methods and apparatus are provided through which a specialized back-projection process reconstructs a finely detailed and crisp three-dimensional image (3-D) from a series of two-dimensional (2-D) images by pre-filtering the 2-D images with a first group of settings before back-projecting the 2-D images into a 3-D image, and then post-filtering the 3-D image with another group of settings. In some embodiments, the first group of settings and the second group of settings are synergistically optimized in relation to each other to provide emphasis on a structure of interest in the object.

    摘要翻译： 提供了系统，方法和装置，通过该系统，方法和装置，专门的反投影处理通过对2-维图像进行预滤波来重建来自一系列二维（2-D）图像的精细细节和清晰的三维图像（3-D） D图像具有第一组设置，然后将2D图像反投影到3-D图像中，然后用另一组设置对3-D图像进行后置滤波。 在一些实施例中，第一组设置和第二组设置协同地相互优化以提供对对象中感兴趣的结构的强调。