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    System and method for material decomposition optimization in image domain
    1.
    发明授权
    System and method for material decomposition optimization in image domain 有权
    图像域中物质分解优化的系统和方法

    公开(公告)号：US08588494B2

    公开(公告)日：2013-11-19

    申请号：US12915195

    申请日：2010-10-29

    申请人： Bruno Kristiaan Bernard De Man ,  Jiang Hsieh ,  Naveen Chandra ,  Jed Douglas Pack ,  Jiahua Fan

    发明人： Bruno Kristiaan Bernard De Man ,  Jiang Hsieh ,  Naveen Chandra ,  Jed Douglas Pack ,  Jiahua Fan

    IPC分类号： G06K9/00 ,  A61B6/00 ,  G01N23/00 ,  G21K1/12 ,  H05G1/60

    CPC分类号： H04B1/1638 ,  G06T11/008 ,  G06T2211/408

    摘要： A system and method for material decomposition optimization in the image domain include a non-transitory computer readable medium has stored thereon a sequence of instructions which, when executed by a computer, causes the computer to access a reconstructed basis material image. For a first voxel of the reconstructed basis material image, the instructions also cause the computer to optimize a concentration of a pair of materials (a,b) in the first voxel exclusively in the image domain and based on a first probability based on random perturbations and a second probability based on random perturbations. The optimization is further based on a third probability based on known materials and a fourth probability based on concentrations of the pair of materials in a pair of voxels neighboring the first voxel.

    摘要翻译： 用于图像域中的材料分解优化的系统和方法包括其上存储有一系列指令的非瞬时计算机可读介质，所述指令序列当由计算机执行时使计算机访问重建的基础材料图像。 对于重建的基材图像的第一体素，指令还使计算机优化仅在图像域中的第一体素中的一对材料（a，b）的浓度，并且基于基于随机扰动的第一概率 和基于随机扰动的第二概率。 优化进一步基于基于已知材料的第三概率和基于邻近第一体素的一对体素中的该对材料对的浓度的第四概率。

    SYSTEM AND METHOD OF ACQUIRING COMPUTED TOMOGRAPHY DATA USING A MULTI-ENERGY X-RAY SOURCE
    2.
    发明申请
    SYSTEM AND METHOD OF ACQUIRING COMPUTED TOMOGRAPHY DATA USING A MULTI-ENERGY X-RAY SOURCE 审中-公开
    使用多能量X射线源获取计算机图像数据的系统和方法

    公开(公告)号：US20130003912A1

    公开(公告)日：2013-01-03

    申请号：US13174485

    申请日：2011-06-30

    申请人： Bruno Kristiaan Bernard De Man ,  Jiang Hsieh ,  Naveen Stephan Chandra ,  Jiahua Fan ,  Jed Douglas Pack

    发明人： Bruno Kristiaan Bernard De Man ,  Jiang Hsieh ,  Naveen Stephan Chandra ,  Jiahua Fan ,  Jed Douglas Pack

    IPC分类号： A61B6/03 ,  G01N23/04

    CPC分类号： A61B6/482 ,  A61B6/032 ,  A61B6/405

    摘要： The subject matter disclosed herein relates to X-ray imaging systems, and more specifically, to multi-energy computed tomography (CT) X-ray imaging systems. In an embodiment, a multi-energy computed tomography (CT) imaging system includes an X-ray source that emits X-rays upon the application of a low stable bias, a high stable bias, and transitional biases between the low stable bias and the high stable bias. The imaging system also includes an X-ray detector configured to produce an electrical signal corresponding to the intensity of the X-rays emitted by the X-ray source that reach the X-ray detector. The imaging system also includes data processing circuitry configured to acquire a first set of data corresponding to the electrical signal produced by the X-ray detector only when the low stable bias or the high stable bias is applied to the X-ray source. The imaging system also includes a processor configured to process the first set of acquired data and construct one or more multi-energy CT images.

    摘要翻译： 本文公开的主题涉及X射线成像系统，更具体地，涉及多能计算机断层摄影（CT）X射线成像系统。 在一个实施例中，多能量计算机断层摄影（CT）成像系统包括在施加低稳定偏压，高稳定偏差以及低稳定偏压和低稳定偏差之间的过渡偏差时发射X射线的X射线源 高稳定偏差。 成像系统还包括：X射线检测器，被配置为产生对应于由X射线源发射的X射线的强度的电信号，该X射线到达X射线检测器。 成像系统还包括数据处理电路，其被配置为仅当低稳定偏压或高稳定偏压施加到X射线源时才获取对应于由X射线检测器产生的电信号的第一组数据。 成像系统还包括被配置为处理第一组获取的数据并构造一个或多个多能CT图像的处理器。

    DE-POPULATED DETECTOR FOR COMPUTED TOMOGRAPHY AND METHOD OF MAKING SAME
    5.
    发明申请
    DE-POPULATED DETECTOR FOR COMPUTED TOMOGRAPHY AND METHOD OF MAKING SAME 审中-公开
    用于计算机图像的人口检测器及其制造方法

    公开(公告)号：US20110211667A1

    公开(公告)日：2011-09-01

    申请号：US12714168

    申请日：2010-02-26

    申请人： Abdelaziz Ikhlef ,  Jiang Hsieh ,  Jeffrey Alan Kautzer ,  Robert F. Senzig ,  Bruno Kristiaan Bernard De Man ,  Paavana Sainath ,  Xiaoye Wu ,  Jed Douglas Pack

    发明人： Abdelaziz Ikhlef ,  Jiang Hsieh ,  Jeffrey Alan Kautzer ,  Robert F. Senzig ,  Bruno Kristiaan Bernard De Man ,  Paavana Sainath ,  Xiaoye Wu ,  Jed Douglas Pack

    IPC分类号： H05G1/60 ,  B23P11/00

    CPC分类号： A61B6/4208 ,  A61B6/032 ,  G01T1/2985 ,  Y10T29/49826

    摘要： A system, method, and apparatus includes a computed tomography (CT) detector array having a central region with a plurality of central region detecting cells configured to acquire CT data of a first number of slices during a scan, a first wing along a first side of the central region, and a second wing along a second side of the central region opposite the first side. The first wing includes a plurality of first wing detecting cells configured to acquire CT data of a second number of slices during the scan. The second wing includes a plurality of second wing detecting cells configured to acquire CT data of a third number of slices during the scan. The second and third number of slices are less than the first number of slices. The first wing detecting cells are of a different type than the central region detecting cells.

    摘要翻译： 系统，方法和装置包括具有中心区域的计算机断层摄影（CT）检测器阵列，多个中心区域检测单元被配置为在扫描期间获取第一数量的切片的CT数据，沿着第一侧 并且沿着与第一侧相对的中心区域的第二侧的第二翼。 第一机翼包括多个第一机翼检测单元，其被配置为在扫描期间获取第二数量的切片的CT数据。 第二翼包括多个第二翼检测单元，其被配置为在扫描期间获取第三数量的切片的CT数据。 第二和第三数量的切片小于第一数量的切片。 第一机翼检测单元与中央区域检测单元不同。

    Asymmetric de-populated detector for computed tomography and method of making same
    6.
    发明授权
    Asymmetric de-populated detector for computed tomography and method of making same 有权
    用于计算机断层扫描的不对称解除检测器及其制造方法

    公开(公告)号：US08155265B2

    公开(公告)日：2012-04-10

    申请号：US12837035

    申请日：2010-07-15

    申请人： Bruno Kristiaan Bernard De Man ,  Abdelaziz Ikhlef ,  Jiang Hsieh ,  Jeffrey Alan Kautzer ,  Robert F. Senzig ,  Paavana Sainath ,  Xiaoye Wu ,  Jed Douglas Pack

    发明人： Bruno Kristiaan Bernard De Man ,  Abdelaziz Ikhlef ,  Jiang Hsieh ,  Jeffrey Alan Kautzer ,  Robert F. Senzig ,  Paavana Sainath ,  Xiaoye Wu ,  Jed Douglas Pack

    IPC分类号： A61B6/03

    CPC分类号： A61B6/032 ,  A61B6/4208 ,  G01T1/2985 ,  Y10T29/49002

    摘要： A computed tomography (CT) detector array includes a central region substantially symmetric about a central axis thereof and includes a first plurality of x-ray detector cells configured to acquire CT data from a first number of detector rows during a scan, wherein the central axis is in a channel direction of the CT detector array and transverse to a slice direction of the CT detector array. A first wing is coupled to a first side of the central region, and a second wing is coupled to a second side of the central region opposite the first side. The first and second wings include respective second and third pluralities of x-ray detector cells and are each configured to acquire CT data from a number of detector rows that is less than the first number of detector rows. The CT detector array is asymmetric about the central axis of the central region.

    摘要翻译： 计算机断层摄影（CT）检测器阵列包括围绕其中心轴基本对称的中心区域，并且包括第一多个x射线检测器单元，其被配置为在扫描期间从第一数量的检测器行获取CT数据，其中中心轴 在CT检测器阵列的通道方向上并且横向于CT检测器阵列的切片方向。 第一翼连接到中心区域的第一侧，第二翼连接到与第一侧相对的中心区域的第二侧。 第一和第二翼包括相应的第二和第三多个X射线检测器单元，并且各自被配置为从小于第一数量的检测器行的多个检测器行获取CT数据。 CT检测器阵列关于中心区域的中心轴线是不对称的。

    ASYMMETRIC DE-POPULATED DETECTOR FOR COMPUTED TOMOGRAPHY AND METHOD OF MAKING SAME
    7.
    发明申请
    ASYMMETRIC DE-POPULATED DETECTOR FOR COMPUTED TOMOGRAPHY AND METHOD OF MAKING SAME 有权
    用于计算机图像的不对称去除检测器及其制造方法

    公开(公告)号：US20120014502A1

    公开(公告)日：2012-01-19

    申请号：US12837035

    申请日：2010-07-15

    申请人： Bruno Kristiaan Bernard De Man ,  Abdelaziz Ikhlef ,  Jiang Hsieh ,  Jeffrey Alan Kautzer ,  Robert F. Senzig ,  Paavana Sainath ,  Xiaoye Wu ,  Jed Douglas Pack

    发明人： Bruno Kristiaan Bernard De Man ,  Abdelaziz Ikhlef ,  Jiang Hsieh ,  Jeffrey Alan Kautzer ,  Robert F. Senzig ,  Paavana Sainath ,  Xiaoye Wu ,  Jed Douglas Pack

    IPC分类号： A61B6/03 ,  H05K13/00

    CPC分类号： A61B6/032 ,  A61B6/4208 ,  G01T1/2985 ,  Y10T29/49002

    摘要： A computed tomography (CT) detector array includes a central region substantially symmetric about a central axis thereof and includes a first plurality of x-ray detector cells configured to acquire CT data from a first number of detector rows during a scan, wherein the central axis is in a channel direction of the CT detector array and transverse to a slice direction of the CT detector array. A first wing is coupled to a first side of the central region, and a second wing is coupled to a second side of the central region opposite the first side. The first and second wings include respective second and third pluralities of x-ray detector cells and are each configured to acquire CT data from a number of detector rows that is less than the first number of detector rows. The CT detector array is asymmetric about the central axis of the central region.

    摘要翻译： 计算机断层摄影（CT）检测器阵列包括围绕其中心轴基本对称的中心区域，并且包括第一多个x射线检测器单元，其被配置为在扫描期间从第一数量的检测器行获取CT数据，其中中心轴 在CT检测器阵列的通道方向上并且横向于CT检测器阵列的切片方向。 第一翼连接到中心区域的第一侧，第二翼连接到与第一侧相对的中心区域的第二侧。 第一和第二翼包括相应的第二和第三多个X射线检测器单元，并且各自被配置为从小于第一数量的检测器行的多个检测器行获取CT数据。 CT检测器阵列关于中心区域的中心轴线是不对称的。

    System and method of optimizing a representation of dual energy spectral CT images
    8.
    发明授权
    System and method of optimizing a representation of dual energy spectral CT images 有权
    优化双能谱CT图像表示的系统和方法

    公开(公告)号：US08787519B2

    公开(公告)日：2014-07-22

    申请号：US13174825

    申请日：2011-07-01

    申请人： Jiahua Fan ,  Naveen Chandra ,  Bruno Kristiaan Bernard De Man

    发明人： Jiahua Fan ,  Naveen Chandra ,  Bruno Kristiaan Bernard De Man

    IPC分类号： A61B6/03 ,  A61B6/00

    CPC分类号： A61B6/482 ,  A61B6/032 ,  A61B6/4241 ,  A61B6/5258

    摘要： An imaging system includes an x-ray source, a detector, a data acquisition system (DAS) operably connected to the detector, and a computer operably connected to the DAS. The computer is programmed to obtain CT scan data with two or more incident energy spectra, decompose the obtained CT scan data into projection CT data of a first basis material and a second basis material, generate a first basis material image and a second basis material image using the decomposed projection CT data, generate a first monochromatic image from the first basis material image and the second basis material image at a first energy that is selected based on an amount of correlated noise at the first energy, noise-reduce the first monochromatic image to generate a noise-reduced first monochromatic image, and generate a final monochromatic image based at least on the noise-reduced first monochromatic image.

    摘要翻译： 成像系统包括可操作地连接到检测器的X射线源，检测器，数据采集系统（DAS）以及可操作地连接到DAS的计算机。 计算机被编程以获得具有两个或更多个入射能谱的CT扫描数据，将获得的CT扫描数据分解成第一基材和第二基材的投影CT数据，生成第一基材图像和第二基材图像 使用分解的投影CT数据，以基于第一能量处的相关噪声量选择的第一能量从第一基材图像和第二基材图像生成第一单色图像，降低第一单色图像 以产生噪声减小的第一单色图像，并且至少基于噪声减小的第一单色图像生成最终单色图像。

    SYSTEM AND METHOD OF OPTIMIZING A REPRESENTATION OF DUAL ENERGY SPECTRAL CT IMAGES
    9.
    发明申请
    SYSTEM AND METHOD OF OPTIMIZING A REPRESENTATION OF DUAL ENERGY SPECTRAL CT IMAGES 有权
    优化双能谱图像的系统和方法

    公开(公告)号：US20120039440A1

    公开(公告)日：2012-02-16

    申请号：US13174825

    申请日：2011-07-01

    申请人： Jiahua Fan ,  Naveen Chandra ,  Bruno Kristiaan Bernard De Man

    发明人： Jiahua Fan ,  Naveen Chandra ,  Bruno Kristiaan Bernard De Man

    IPC分类号： G01N23/04

    CPC分类号： A61B6/482 ,  A61B6/032 ,  A61B6/4241 ,  A61B6/5258

    摘要： An imaging system includes an x-ray source, a detector, a data acquisition system (DAS) operably connected to the detector, and a computer operably connected to the DAS. The computer is programmed to obtain CT scan data with two or more incident energy spectra, decompose the obtained CT scan data into projection CT data of a first basis material and a second basis material, generate a first basis material image and a second basis material image using the decomposed projection CT data, generate a first monochromatic image from the first basis material image and the second basis material image at a first energy that is selected based on an amount of correlated noise at the first energy, noise-reduce the first monochromatic image to generate a noise-reduced first monochromatic image, and generate a final monochromatic image based at least on the noise-reduced first monochromatic image.

    摘要翻译： 成像系统包括可操作地连接到检测器的X射线源，检测器，数据采集系统（DAS）以及可操作地连接到DAS的计算机。 计算机被编程以获得具有两个或更多个入射能谱的CT扫描数据，将获得的CT扫描数据分解成第一基材和第二基材的投影CT数据，生成第一基材图像和第二基材图像 使用分解的投影CT数据，以基于第一能量处的相关噪声量选择的第一能量从第一基材图像和第二基材图像生成第一单色图像，降低第一单色图像 以产生噪声减小的第一单色图像，并且至少基于噪声减小的第一单色图像生成最终单色图像。