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1. 发明申请

US20110064202A1 METHOD AND SYSTEM FOR GENERATING AN X-RAY BEAM 审中-公开
标题翻译：用于产生X射线光束的方法和系统
公开(公告)号：US20110064202A1
公开(公告)日：2011-03-17
申请号：US12992409
申请日：2009-05-08
申请人： Axel Thran , Peter Forthmann , Roland Proksa , Thomas Koehler
发明人： Axel Thran , Peter Forthmann , Roland Proksa , Thomas Koehler
IPC分类号： H01J35/08 , H01J35/00 , H01J35/06 , H01J35/30
CPC分类号： H01J35/10 , H01J35/30 , H01J2235/086 , H05G1/52 , H05G1/58
摘要： To scan an object with differently shaped cone beams (112, 122), the present invention provides a CT scanner with a moveable X-ray tube (the meaning of “move the x-ray tube among a plurality of predefined positions” also covers the situation that the anode disk is moved among a plurality of corresponding positions, while the shell of the x-ray tube does not move). The X-ray tube is not only moveable along the axial direction, but also along the radial direction of the CT scanner gantry. The scanner comprises an X-ray tube, which X-ray tube further comprises: an anode disk (100), comprising a plurality of focal tracks (110, 120) each focal track being cone-shaped with an anode angle (114, 124) different from the anode angle(s) of the other focal track(s); and a first cathode (210), configured to emanate an electron beam targeting at least one of the plurality of focal tracks. When different focal tracks are bombarded by electron beams, different X-ray beams (112, 122) with differently shaped cone beams are generated.
摘要翻译：为了扫描具有不同形状的锥形束（112,122）的物体，本发明提供具有可移动X射线管的CT扫描器（“在多个预定位置中移动x射线管”的含义也覆盖使得阳极盘在多个对应位置之间移动，而X射线管的外壳不移动的情况）。 X射线管不仅可以沿轴向移动，而且可沿CT扫描仪台架的径向方向移动。所述扫描器包括X射线管，所述X射线管还包括：阳极盘（100），包括多个焦点轨道（110,120），每个焦点轨道呈圆锥形，具有阳极角（114,124 ）不同于另一个焦点轨道的阳极角度; 以及第一阴极（210），被配置为发射靶向所述多个焦点轨道中的至少一个的电子束。当不同的焦点轨道被电子束轰击时，产生具有不同形状的锥形束的不同的X射线束（112,122）。

2. 发明授权

US08693621B2 Source and/or detector positioning system 有权
标题翻译：源和/或探测器定位系统
公开(公告)号：US08693621B2
公开(公告)日：2014-04-08
申请号：US12990278
申请日：2009-04-30
申请人： Axel Thran , Claas Bontus , Peter Forthmann , Roland Proksa , Ronald B. Sharpless , Dominic J. Heuscher , Felix Peeters , Johannes Bathazar Maria Soetens
发明人： Axel Thran , Claas Bontus , Peter Forthmann , Roland Proksa , Ronald B. Sharpless , Dominic J. Heuscher , Felix Peeters , Johannes Bathazar Maria Soetens
IPC分类号： A61B6/03
CPC分类号： A61B6/4447 , A61B6/06 , A61B6/4021
摘要： A medical imaging system includes a generally stationary gantry (102) and a rotating gantry (106), rotatably supported by the generally stationary gantry (102), that rotates about a longitudinal axis around an examination region. The medical imaging system further includes a radiation source (112) that emits a radiation beam that traverses the examination region. The radiation source (112) is moveably affixed to the rotating gantry (106) so as to translate in a direction of the longitudinal axis with respect to the rotating gantry (106) while scanning a subject in the examination region. The medical imaging system further includes a detector array (120) that detects the radiation beam that traverses the examination region and generates a signal indicative thereof. The detector array (120) is moveably affixed to the rotating gantry (106) so as to move in coordination with the radiation source (112) while scanning the subject in the examination region.
摘要翻译：医疗成像系统包括大致固定的机架（102）和旋转支架（106），旋转机架（106）由大体上固定的机架（102）可旋转地支撑，围绕检查区域围绕纵向轴线旋转。医疗成像系统还包括发射穿过检查区域的辐射束的辐射源（112）。辐射源（112）可移动地固定到旋转机架（106）上，以便在扫描检查区域中的被检体的同时相对于旋转台架（106）在纵向轴线的方向上平移。医疗成像系统还包括检测器阵列（120），其检测穿过检查区域的辐射束并产生指示其的信号。检测器阵列（120）可移动地固定到旋转机架（106），以在扫描检查区域中的对象时与辐射源（112）协调地移动。

3. 发明授权

US08401144B2 Method and apparatus for correcting artifacts in circular CT scans 有权
标题翻译：用于校正圆形CT扫描中的伪影的方法和装置
公开(公告)号：US08401144B2
公开(公告)日：2013-03-19
申请号：US12535231
申请日：2009-08-04
申请人： Peter Forthmann , Axel Thran , Claas Bontus , Roland Proksa
发明人： Peter Forthmann , Axel Thran , Claas Bontus , Roland Proksa
IPC分类号： G01N23/083 , H05G1/60
CPC分类号： A61B6/032 , A61B6/027 , A61B6/488 , G06T5/50 , G06T11/005 , G06T2207/10072 , G06T2211/432
摘要： A scanning method and apparatus useful for correcting artifacts which may appear in a primary short circular CT scan are provided. A secondary helical scan performed on a stationary subject, or a secondary circular scan, may be used to correct for artifacts. The secondary scan may be performed with a smaller radiation dosage than the primary circular CT scan.
摘要翻译：提供了可用于校正可能出现在初级短圆形CT扫描中的伪影的扫描方法和装置。可以使用在静止对象上进行的辅助螺旋扫描或二次循环扫描来校正伪像。次扫描可以以比初级圆形CT扫描更小的辐射剂量进行。

4. 发明授权

US08180017B2 Stereo tube attenuation filter 有权
标题翻译：立体声管衰减滤波器
公开(公告)号：US08180017B2
公开(公告)日：2012-05-15
申请号：US12746364
申请日：2008-12-12
申请人： Peter Forthmann , Roland Proksa , Axel Thran
发明人： Peter Forthmann , Roland Proksa , Axel Thran
IPC分类号： A61B6/00 , G21K3/00
CPC分类号： H01J35/10 , A61B6/027 , A61B6/032 , A61B6/4007 , A61B6/4014 , A61B6/4021 , A61B6/4028 , A61B6/4035 , A61B6/4266 , G21K1/10 , H01J35/26 , H01J2235/068 , H01J2235/086
摘要： A computed tomography apparatus (10) includes spaced radiation sources (82, 84), such as anodes, which each propagate a cone-beam of radiation (40, 50) into an examination region (14). A detector (22) detects radiation which has passed through the examination region. An attenuation system (55) interposed between the radiation sources and the examination region for cone-angle dependent filtering of the cone beams. The attenuation system allows rays which contribute little to a reconstructed image to be attenuated more than rays which contribute more.
摘要翻译：计算机断层摄影装置（10）包括间隔开的辐射源（82,84），例如阳极，其每个辐射源将辐射束（40,50）传播到检查区域（14）中。检测器（22）检测已经通过检查区域的辐射。介于辐射源与锥形束的锥角相关滤波检查区域之间的衰减系统（55）。衰减系统允许对重建图像贡献很小的光线比有助于更多的光线衰减更多。

5. 发明申请

US20110058644A1 SOURCE AND/OR DETECTOR POSITIONING SYSTEM 有权
标题翻译：源和/或检测器定位系统
公开(公告)号：US20110058644A1
公开(公告)日：2011-03-10
申请号：US12990278
申请日：2009-04-30
申请人： Axel Thran , Claas Bontus , Peter Forthmann , Roland Proksa , Ronald B. Sharpless , Dominic J. Heuscher , Felix Peeters , Johannes Bathazar Maria Soetens
发明人： Axel Thran , Claas Bontus , Peter Forthmann , Roland Proksa , Ronald B. Sharpless , Dominic J. Heuscher , Felix Peeters , Johannes Bathazar Maria Soetens
IPC分类号： A61B6/03 , G01T1/24
CPC分类号： A61B6/4447 , A61B6/06 , A61B6/4021
摘要： A medical imaging system includes a generally stationary gantry (102) and a rotating gantry (106), rotatably supported by the generally stationary gantry (102), that rotates about a longitudinal axis around an examination region. The medical imaging system further includes a radiation source (112) that emits a radiation beam that traverses the examination region. The radiation source (112) is moveably affixed to the rotating gantry (106) so as to translate in a direction of the longitudinal axis with respect to the rotating gantry (106) while scanning a subject in the examination region. The medical imaging system further includes a detector array (120) that detects the radiation beam that traverses the examination region and generates a signal indicative thereof. The detector array (120) is moveably affixed to the rotating gantry (106) so as to move in coordination with the radiation source (112) while scanning the subject in the examination region.
摘要翻译：医疗成像系统包括大致固定的机架（102）和旋转支架（106），旋转机架（106）由大体上固定的机架（102）可旋转地支撑，围绕检查区域围绕纵向轴线旋转。医疗成像系统还包括发射穿过检查区域的辐射束的辐射源（112）。辐射源（112）可移动地固定到旋转机架（106）上，以便在扫描检查区域中的被检体的同时相对于旋转台架（106）在纵向轴线的方向上平移。医疗成像系统还包括检测器阵列（120），其检测穿过检查区域的辐射束并产生指示其的信号。检测器阵列（120）可移动地固定到旋转机架（106），以在扫描检查区域中的对象时与辐射源（112）协调地移动。

6. 发明申请

US20100246756A1 STEREO TUBE ATTENUATION FILTER 有权
标题翻译：立体声衰减滤波器
公开(公告)号：US20100246756A1
公开(公告)日：2010-09-30
申请号：US12746364
申请日：2008-12-12
申请人： Peter Forthmann , Roland Proksa , Axel Thran
发明人： Peter Forthmann , Roland Proksa , Axel Thran
IPC分类号： A61B6/03 , G21K3/00
CPC分类号： H01J35/10 , A61B6/027 , A61B6/032 , A61B6/4007 , A61B6/4014 , A61B6/4021 , A61B6/4028 , A61B6/4035 , A61B6/4266 , G21K1/10 , H01J35/26 , H01J2235/068 , H01J2235/086
摘要： A computed tomography apparatus (10) includes spaced radiation sources (82, 84), such as anodes, which each propagate a cone-beam of radiation (40, 50) into an examination region (14). A detector (22) detects radiation which has passed through the examination region. An attenuation system (55) interposed between the radiation sources and the examination region for cone-angle dependent filtering of the cone beams. The attenuation system allows rays which contribute little to a reconstructed image to be attenuated more than rays which contribute more.
摘要翻译：计算机断层摄影装置（10）包括间隔开的辐射源（82,84），例如阳极，其每个辐射源将辐射束（40,50）传播到检查区域（14）中。检测器（22）检测已经通过检查区域的辐射。介于辐射源与锥形束的锥角相关滤波检查区域之间的衰减系统（55）。衰减系统允许对重建图像贡献很小的光线比有助于更多的光线衰减更多。

7. 发明授权

US09177397B2 Imaging apparatus 有权
标题翻译：成像设备
公开(公告)号：US09177397B2
公开(公告)日：2015-11-03
申请号：US14125149
申请日：2012-06-07
申请人： Ewald Roessl , Axel Thran , Roland Proksa
发明人： Ewald Roessl , Axel Thran , Roland Proksa
IPC分类号： G06K9/00 , G06T11/00 , G01N23/04 , A61B6/03 , A61B6/00
CPC分类号： G06T11/005 , A61B6/032 , A61B6/482 , A61B6/583 , G01N23/046 , G01N2223/401 , G01N2223/419 , G06T2211/408
摘要： The invention relates to an imaging apparatus (31) for imaging an object. A reconstruction unit (12) determines component projection data values, which correspond to, for example, a base material of the object, and reconstructs an image of the object based on the determined component projection data values. A component projection data value, which corresponds to a ray, is determined as a combination of weighted base functions, which depend on energy projection data values of the same ray and the orientation of the same ray. This allows considering a possible dependency of the corresponding decomposition on the orientation of the ray, thereby allowing the imaging apparatus to improve the quality of decomposing the provided energy projection data values into the component projection data values and thus of a finally reconstructed image of the object, which is reconstructed based on the component projection data values.
摘要翻译：本发明涉及一种用于对物体成像的成像装置（31）。重建单元（12）确定与例如对象的基础材料相对应的分量投影数据值，并且基于所确定的分量投影数据值来重构对象的图像。对应于射线的分量投影数据值被确定为加权基函数的组合，其依赖于相同射线的能量投影数据值和相同射线的取向。这允许考虑相应分解对于射线取向的可能依赖性，从而允许成像装置提高将所提供的能量投影数据值分解成分量投影数据值并因此提高对象的最终重建图像的质量，其基于分量投影数据值被重建。

8. 发明申请

US20140112565A1 IMAGING APPARATUS 有权
标题翻译：成像设备
公开(公告)号：US20140112565A1
公开(公告)日：2014-04-24
申请号：US14125149
申请日：2012-06-07
申请人： Ewald Roessl , Axel Thran , Roland Proksa
发明人： Ewald Roessl , Axel Thran , Roland Proksa
IPC分类号： G06T11/00
CPC分类号： G06T11/005 , A61B6/032 , A61B6/482 , A61B6/583 , G01N23/046 , G01N2223/401 , G01N2223/419 , G06T2211/408
摘要： The invention relates to an imaging apparatus (31) for imaging an object. A reconstruction unit (12) determines component projection data values, which correspond to, for example, a base material of the object, and reconstructs an image of the object based on the determined component projection data values. A component projection data value, which corresponds to a ray, is determined as a combination of weighted base functions, which depend on energy projection data values of the same ray and the orientation of the same ray. This allows considering a possible dependency of the corresponding decomposition on the orientation of the ray, thereby allowing the imaging apparatus to improve the quality of decomposing the provided energy projection data values into the component projection data values and thus of a finally reconstructed image of the object, which is reconstructed based on the component projection data values.
摘要翻译：本发明涉及一种用于对物体成像的成像装置（31）。重建单元（12）确定与例如对象的基础材料相对应的分量投影数据值，并且基于所确定的分量投影数据值来重构对象的图像。对应于射线的分量投影数据值被确定为加权基函数的组合，其依赖于相同射线的能量投影数据值和相同射线的取向。这允许考虑相应分解对于射线取向的可能依赖性，从而允许成像装置提高将所提供的能量投影数据值分解成分量投影数据值并因此提高对象的最终重建图像的质量，其基于分量投影数据值被重建。

9. 发明申请

US20130308847A1 SPECTRAL IMAGING 有权
标题翻译：光谱成像
公开(公告)号：US20130308847A1
公开(公告)日：2013-11-21
申请号：US13981608
申请日：2012-01-12
申请人： Carsten Oliver Schirra , Gregory Lanza , Roland Proksa , Ewald Roessl , Axel Thran , Robert Manzke
发明人： Carsten Oliver Schirra , Gregory Lanza , Roland Proksa , Ewald Roessl , Axel Thran , Robert Manzke
IPC分类号： G06T7/00
CPC分类号： G06T7/0012 , A61B6/481 , A61B6/482 , G06T11/005 , G06T2211/408
摘要： A method includes analyzing a spectral projection image of a portion of a subject, generating a value quantifying an amount of a target specific contrast material in a region of interest of the spectral projection image, and generating a signal indicative of a presence of the target in response to the value satisfying a predetermined threshold level.
摘要翻译：一种方法包括分析对象的一部分的光谱投影图像，产生量化在所述光谱投影图像的感兴趣区域中的目标特定对比度材料的量的值，以及生成指示所述目标的存在的信号响应于满足预定阈值水平的值。

10. 发明授权

US09928585B2 Spectral imaging 有权
公开(公告)号：US09928585B2
公开(公告)日：2018-03-27
申请号：US13981608
申请日：2012-01-12
申请人： Carsten Oliver Schirra , Gregory Lanza , Roland Proksa , Ewald Roessl , Axel Thran , Robert Manzke
发明人： Carsten Oliver Schirra , Gregory Lanza , Roland Proksa , Ewald Roessl , Axel Thran , Robert Manzke
IPC分类号： A61B6/00 , G06T7/00 , G06T11/00
CPC分类号： G06T7/0012 , A61B6/481 , A61B6/482 , G06T11/005 , G06T2211/408
摘要： A method includes analyzing a spectral projection image of a portion of a subject, generating a value quantifying an amount of a target specific contrast material in a region of interest of the spectral projection image, and generating a signal indicative of a presence of the target in response to the value satisfying a predetermined threshold level.

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