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    Spectral CT
    3.
    发明授权
    Spectral CT 有权
    光谱CT

    公开(公告)号：US08442184B2

    公开(公告)日：2013-05-14

    申请号：US12996985

    申请日：2009-06-01

    申请人： Peter Forthmann ,  Udo Van Stevendaal ,  Ewald Roessl ,  Michael Grass ,  Roland Proksa ,  Jens-Peter Schlomka

    发明人： Peter Forthmann ,  Udo Van Stevendaal ,  Ewald Roessl ,  Michael Grass ,  Roland Proksa ,  Jens-Peter Schlomka

    IPC分类号： A61B6/00

    CPC分类号： A61B6/405 ,  A61B6/032 ,  A61B6/4014 ,  A61B6/4035 ,  A61B6/4042 ,  A61B6/4241 ,  A61B6/482

    摘要： An imaging system includes a radiation source (106, T1, T2, T3) that rotates about an examination region and emits radiation that traverses the examination region. The radiation source (106, T1, T2, T3) emits radiation having an energy spectrum that is selectively alternately switched between at least two different energy spectra during an imaging procedure. The system further includes an energy-resolving detector array (116, D1, D2, D3) that detects radiation traversing the examination region. The energy-resolving detector array (116, D1, D2, D3) resolves the detected radiation over at least two different energy ranges and produces energy-resolved output signals as a function of both emission energy spectrum and energy range. The system further includes a reconstructor (126) that performs a spectral reconstruction of the energy-resolved output signals. In another embodiment, the detector array (116) includes a photon-counting detector array (116).

    摘要翻译： 成像系统包括围绕检查区域旋转并且发射穿过检查区域的辐射的辐射源（106，T1，T2，T3）。 辐射源（106，T1，T2，T3）发射具有在成像过程期间在至少两个不同能量谱之间选择性交替切换的能谱的辐射。 该系统还包括检测穿过检查区域的辐射的能量分辨检测器阵列（116，D1，D2，D3）。 能量分辨检测器阵列（116，D1，D2，D3）通过至少两个不同的能量范围来解析检测到的辐射，并且产生作为发射能量谱和能量范围的函数的能量分辨的输出信号。 该系统还包括执行能量分辨输出信号的频谱重建的重建器（126）。 在另一个实施例中，检测器阵列（116）包括光子计数检测器阵列（116）。

    IMAGING SYSTEM FOR IMAGING A REGION OF INTEREST COMPRISING A MOVING OBJECT
    4.
    发明申请
    IMAGING SYSTEM FOR IMAGING A REGION OF INTEREST COMPRISING A MOVING OBJECT 有权
    用于成像包含运动对象的兴趣区域的成像系统

    公开(公告)号：US20090310825A1

    公开(公告)日：2009-12-17

    申请号：US12521899

    申请日：2008-01-02

    申请人： Claas Bontus ,  Michael Grass ,  Carsten Oliver Schirra ,  Udo Van Stevendaal ,  Guy Lavi

    发明人： Claas Bontus ,  Michael Grass ,  Carsten Oliver Schirra ,  Udo Van Stevendaal ,  Guy Lavi

    IPC分类号： G06K9/00

    CPC分类号： G06T7/20 ,  A61B5/0402 ,  A61B6/027 ,  A61B6/032 ,  A61B6/469 ,  A61B6/503 ,  A61B6/504 ,  A61B6/541

    摘要： The invention relates to an imaging system for imaging a region of interest comprising a moving object, which moves less in small motion phases than in large motion phases. Detection values are provided and a small motion determination unit (15) determines the motion of the object in the region of interest in the small motion phases from the 5 detection values. A large motion determination unit (16) determines the motion of the object in the large motion phases from the determined motion of the object in the small motion phases. A reconstruction unit (17) reconstructs an image of the region of interest from the detection values, wherein the reconstruction unit (17) is adapted for performing a motion compensation using the determined motions in the small and large motion phases.

    摘要翻译： 本发明涉及一种用于对感兴趣的区域成像的成像系统，该成像系统包括移动物体，该运动物体在小运动相位上比在大运动相位中运动较少。 提供检测值，并且小运动确定单元（15）从5个检测值确定在小运动相位中的感兴趣区域中的对象的运动。 大运动确定单元（16）根据所确定的小运动阶段中的物体的运动来确定物体在大运动相位中的运动。 重建单元（17）从检测值重建感兴趣区域的图像，其中重建单元（17）适于使用在小的和大的运动阶段中确定的运动来执行运动补偿。

    Imaging system for imaging a region of interest in different phases
    5.
    发明授权
    Imaging system for imaging a region of interest in different phases 有权
    用于在不同阶段成像感兴趣区域的成像系统

    公开(公告)号：US08437524B2

    公开(公告)日：2013-05-07

    申请号：US12521899

    申请日：2008-01-02

    申请人： Claas Bontus ,  Michael Grass ,  Carsten Oliver Schirra ,  Udo Van Stevendaal ,  Guy Lavi

    发明人： Claas Bontus ,  Michael Grass ,  Carsten Oliver Schirra ,  Udo Van Stevendaal ,  Guy Lavi

    IPC分类号： G06K9/00

    CPC分类号： G06T7/20 ,  A61B5/0402 ,  A61B6/027 ,  A61B6/032 ,  A61B6/469 ,  A61B6/503 ,  A61B6/504 ,  A61B6/541

    摘要： The invention relates to an imaging system for imaging a region of interest comprising a moving object, which moves less in small motion phases than in large motion phases. Detection values are provided and a small motion determination unit (15) determines the motion of the object in the region of interest in the small motion phases from the 5 detection values. A large motion determination unit (16) determines the motion of the object in the large motion phases from the determined motion of the object in the small motion phases. A reconstruction unit (17) reconstructs an image of the region of interest from the detection values, wherein the reconstruction unit (17) is adapted for performing a motion compensation using the determined motions in the small and large motion phases.

    摘要翻译： 本发明涉及一种用于对感兴趣的区域成像的成像系统，该成像系统包括移动物体，该运动物体在小运动相位上比在大运动相位中运动较少。 提供检测值，并且小运动确定单元（15）从5个检测值确定在小运动相位中的感兴趣区域中的对象的运动。 大运动确定单元（16）根据所确定的小运动阶段中的物体的运动来确定物体在大运动相位中的运动。 重建单元（17）从检测值重建感兴趣区域的图像，其中重建单元（17）适于使用在小的和大的运动阶段中确定的运动来执行运动补偿。

    Computer tomography scanner having an adjustable rotational speed
    6.
    发明授权
    Computer tomography scanner having an adjustable rotational speed 失效
    具有可调节旋转速度的计算机断层扫描仪

    公开(公告)号：US07346143B2

    公开(公告)日：2008-03-18

    申请号：US11573355

    申请日：2005-08-02

    申请人： Robert Manzke ,  Michael Grass ,  Udo Van Stevendaal

    发明人： Robert Manzke ,  Michael Grass ,  Udo Van Stevendaal

    IPC分类号： A61B6/00

    CPC分类号： A61B6/035 ,  F16F15/28 ,  F16F15/36 ,  G01M1/36

    摘要： The invention relates to a computer tomography scanner comprising a gantry, on the rotor of which one or more displaceable masses are arranged. During rotation of the rotor about a rotation axis, the position of each mass can be changed perpendicular to the rotation axis by means of an adjustment unit. By retaining the rotary momentum of the rotor, the rotational speed is increased when the masses are moved toward the rotation axis, and vice versa. As a result, it is possible to maintain a specific ratio between the heart rate of the examined patient and the rotational speed even if the heart rate of the patient changes during the examination.

    摘要翻译： 本发明涉及一种计算机断层摄影扫描器，其包括在其上布置有一个或多个可移位质量的转子上的台架。 在转子围绕旋转轴线旋转期间，每个质量块的位置可以通过调整单元垂直于旋转轴线改变。 通过保持转子的旋转动量，当质量朝向旋转轴线移动时，转速增加，反之亦然。 结果，即使在检查期间患者的心率发生变化，也可以保持所检查患者的心率与转速之间的比率。

    SPECTRAL CT
    7.
    发明申请
    SPECTRAL CT 有权
    光谱CT

    公开(公告)号：US20110096892A1

    公开(公告)日：2011-04-28

    申请号：US12996985

    申请日：2009-06-01

    申请人： Peter Forthmann ,  Udo Van Stevendaal ,  Ewald Roessl ,  Michael Grass ,  Roland Proksa ,  Jens-Peter Schlomka

    发明人： Peter Forthmann ,  Udo Van Stevendaal ,  Ewald Roessl ,  Michael Grass ,  Roland Proksa ,  Jens-Peter Schlomka

    IPC分类号： H05G1/60

    CPC分类号： A61B6/405 ,  A61B6/032 ,  A61B6/4014 ,  A61B6/4035 ,  A61B6/4042 ,  A61B6/4241 ,  A61B6/482

    摘要： An imaging system includes a radiation source (106, T1, T2, T3) that rotates about an examination region and emits radiation that traverses the examination region. The radiation source (106, T1, T2, T3) emits radiation having an energy spectrum that is selectively alternately switched between at least two different energy spectra during an imaging procedure. The system further includes an energy-resolving detector array (116, D1, D2, D3) that detects radiation traversing the examination region. The energy-resolving detector array (116, D1, D2, D3) resolves the detected radiation over at least two different energy ranges and produces energy-resolved output signals as a function of both emission energy spectrum and energy range. The system further includes a reconstructor (126) that performs a spectral reconstruction of the energy-resolved output signals. In another embodiment, the detector array (116) includes a photon-counting detector array (116).

    摘要翻译： 成像系统包括围绕检查区域旋转并且发射穿过检查区域的辐射的辐射源（106，T1，T2，T3）。 辐射源（106，T1，T2，T3）发射具有在成像过程期间在至少两个不同能量谱之间选择性交替切换的能谱的辐射。 该系统还包括检测穿过检查区域的辐射的能量分辨检测器阵列（116，D1，D2，D3）。 能量分辨检测器阵列（116，D1，D2，D3）通过至少两个不同的能量范围来解析检测到的辐射，并且产生作为发射能量谱和能量范围的函数的能量分辨的输出信号。 该系统还包括执行能量分辨输出信号的频谱重建的重建器（126）。 在另一个实施例中，检测器阵列（116）包括光子计数检测器阵列（116）。

    Coherent Scatter Imaging
    9.
    发明申请
    Coherent Scatter Imaging 审中-公开
    相干散射成像

    公开(公告)号：US20080317311A1

    公开(公告)日：2008-12-25

    申请号：US11574742

    申请日：2005-09-09

    申请人： Michael Grass ,  Jens-Peter Schlomka ,  Udo Van Stevendaal

    发明人： Michael Grass ,  Jens-Peter Schlomka ,  Udo Van Stevendaal

    IPC分类号： G06K9/00

    CPC分类号： G01V5/0025 ,  G01T1/1644

    摘要： A region of interest is identified using a conventional CT or X-ray approach. Then, the region of interest is scanned using a plurality of pencil beams (28) to obtain a plurality of different scattered X-ray spectra. A geometric correction is then applied to each spectrum as if the spectrum was solely due to features in the region of interest. The various spectra recorded using the beams are combined and correlated to determine features of the region of interest (32) whilst minimising the effect of features in the rest of the sample (30).

    摘要翻译： 使用常规CT或X射线方法识别感兴趣区域。 然后，使用多个笔形光束（28）扫描感兴趣区域，以获得多个不同的散射X射线光谱。 然后将几何校正应用于每个频谱，好像光谱完全是由于感兴趣区域中的特征。 使用光束记录的各种光谱被组合并相关，以确定感兴趣区域（32）的特征，同时最小化样本（30）的其余部分中的特征的影响。

    OBJECT LOCALIZATION APPARATUS
    10.
    发明申请
    OBJECT LOCALIZATION APPARATUS 审中-公开
    对象本地化设备

    公开(公告)号：US20120302876A1

    公开(公告)日：2012-11-29

    申请号：US13575828

    申请日：2011-01-31

    申请人： Udo Van Stevendaal ,  Michael Grass

    发明人： Udo Van Stevendaal ,  Michael Grass

    IPC分类号： A61B6/00 ,  G06K9/00

    CPC分类号： A61B6/12 ,  A61B6/466 ,  A61B6/504 ,  A61B6/547 ,  A61B34/20 ,  A61B2034/2065 ,  A61M25/0108

    摘要： The invention relates to an object localization apparatus for localizing an object having markers based on a projection image. An object function (8) is provided along x-z positions (9, 20 . . . 25), wherein the x-z positions (9, 20 . . . 25) are defined by pairs of an x position being a position of a recognized projected marker along a fictive line on the recognized projected object in a projection plane and a z position defining a position in a direction being outside the projection plane. The position is determined based on the object function (8) which is modified by varying the z positions such that distances between the x-z positions along the object function (8) are adapted to distances between the markers of the object. This allows the object localization apparatus to determine the position with a reduced number of projection images, in particular, with only a single projection image.

    摘要翻译： 本发明涉及一种用于基于投影图像来定位具有标记的物体的物体定位装置。 沿xz位置（9,20,25）提供对象功能（8），其中xz位置（9,20,25）由x位置的对定义，该位置是识别的投影标记的位置 沿着在投影平面中识别的投影物体上的假想线，并且限定在投影平面外的方向上的位置的az位置。 基于通过改变z位置来修改的对象函数（8）确定位置，使得沿着对象函数（8）的x-z位置之间的距离适合于对象的标记之间的距离。 这允许物体定位装置确定具有减少数量的投影图像的位置，特别是仅使用单个投影图像。