专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2009083848A1 STEREO TUBE ATTENUATION FILTER 审中-公开
标题翻译：立体声衰减滤波器
公开(公告)号：WO2009083848A1
公开(公告)日：2009-07-09
申请号：PCT/IB2008/055264
申请日：2008-12-12
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , FORTHMANN, Peter , PROKSA, Roland , THRAN, Axel
发明人： FORTHMANN, Peter , PROKSA, Roland , THRAN, Axel
IPC分类号： A61B6/03 , G21K1/10
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，每个辐射源将辐射（40,50）的锥束传播到检查区域（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。

2. 发明申请

WO2009138933A1 METHOD AND SYSTEM FOR GENERATING AN X-RAY BEAN 审中-公开
标题翻译：用于生成X射线光束的方法和系统
公开(公告)号：WO2009138933A1
公开(公告)日：2009-11-19
申请号：PCT/IB2009/051906
申请日：2009-05-08
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , THRAN, Axel , FORTHMANN, Peter , PROKSA, Roland , KOEHLER, Thomas
发明人： THRAN, Axel , FORTHMANN, Peter , PROKSA, Roland , KOEHLER, Thomas
IPC分类号： H01J35/10 , H01J35/30 , H05G1/52 , H05G1/58 , A61B6/00
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）。

3. 发明申请

WO2009133530A1 SOURCE AND/OR DETECTOR POSITIONING SYSTEM 审中-公开
标题翻译：源和/或检测器定位系统
公开(公告)号：WO2009133530A1
公开(公告)日：2009-11-05
申请号：PCT/IB2009/051764
申请日：2009-04-30
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , THRAN, Axel , BONTUS, Claas , FORTHMANN, Peter , PROKSA, Roland , SHARPLESS, Ronald, B. , HEUSCHER, Dominic, J. , PEETERS, Felix , SOETENS, Johannes, Bathazar, Maria
发明人： THRAN, Axel , BONTUS, Claas , FORTHMANN, Peter , PROKSA, Roland , SHARPLESS, Ronald, B. , HEUSCHER, Dominic, J. , PEETERS, Felix , SOETENS, Johannes, Bathazar, Maria
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。

4. 发明申请

WO2009027904A2 X RAY IMAGING SYSTEM WITH CYLINDRICAL ARRANGEMENT OF SOURCE AND DETECTOR 审中-公开
标题翻译： X射线成像系统具有圆柱状的源和探测器布置
公开(公告)号：WO2009027904A2
公开(公告)日：2009-03-05
申请号：PCT/IB2008/053353
申请日：2008-08-21
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , PROKSA, Roland , THRAN, Axel , GRASS, Michael
发明人： PROKSA, Roland , THRAN, Axel , GRASS, Michael
IPC分类号： A61B6/03
CPC分类号： A61B6/4014 , A61B6/027 , A61B6/032 , A61B6/4028 , A61B6/503 , A61B6/508 , G01T1/1644 , H01J2235/00
摘要： The invention relates to an X-rayimaging system (100) like a CT-scanner. In a preferred embodiment of the system, a cylindrical X-raydetector(130) is sandwiched between two cylindrical X-raysources (110, 120) or vice versa. The X-raysources preferably comprise cathodes with carbon nanotubes and a multitude of focal spots(111) that can selectively be controlled. The cylinder-diameters of the X-raysource and the X-raydetector may be the same or, preferably, be different. Moreover, the X-raysource and the X-ray detector preferably extend circumferentially over less than the full angle of 360°.
摘要翻译：本发明涉及如CT扫描仪的X射线成像系统（100）。在该系统的优选实施例中，圆柱形X射线探测器（130）夹在两个圆柱形X射线源（110,120）之间，反之亦然。 X射线源优选包括具有碳纳米管的阴极和可以选择性控制的多个焦点（111）。 X射线源和X射线探测器的圆柱直径可以相同，或者优选不同。而且，X射线源和X射线探测器优选地在周向上延伸小于360°的全角。

5. 发明申请

WO2012176088A1 IMAGING APPARATUS 审中-公开
标题翻译：成像设备
公开(公告)号：WO2012176088A1
公开(公告)日：2012-12-27
申请号：PCT/IB2012/052865
申请日：2012-06-07
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , RÖSSL, Ewald , THRAN, Axel , PROKSA, Roland
发明人： RÖSSL, Ewald , THRAN, Axel , PROKSA, Roland
IPC分类号： G01N23/04 , A61B6/03
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。

6. 发明申请

WO2012101537A1 SPECTRAL IMAGING 审中-公开
标题翻译：光谱成像
公开(公告)号：WO2012101537A1
公开(公告)日：2012-08-02
申请号：PCT/IB2012/050150
申请日：2012-01-12
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , SCHIRRA, Carsten Oliver , LANZA, Gregory , PROKSA, Roland , RÖSSL, Ewald , THRAN, Axel , MANZKE, Robert
发明人： SCHIRRA, Carsten Oliver , LANZA, Gregory , PROKSA, Roland , RÖSSL, Ewald , THRAN, Axel , MANZKE, Robert
IPC分类号： 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.
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。

7. 发明申请

WO2010001281A1 SPECTRAL CT 审中-公开
标题翻译：光谱CT
公开(公告)号：WO2010001281A1
公开(公告)日：2010-01-07
申请号：PCT/IB2009/052300
申请日：2009-06-01
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , FORTHMANN, Peter , VAN STEVENDAAL, Udo , ROESSL, Ewald , GRASS, Michael , PROKSA, Roland , SCHLOMKA, Jens-Peter
发明人： FORTHMANN, Peter , VAN STEVENDAAL, Udo , ROESSL, Ewald , GRASS, Michael , PROKSA, Roland , SCHLOMKA, Jens-Peter
IPC分类号： A61B6/03 , G01T1/20 , 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）。

8. 发明申请

WO2009136347A1 IMAGE ARTIFACT REDUCTION 审中-公开
标题翻译：图像艺术减少
公开(公告)号：WO2009136347A1
公开(公告)日：2009-11-12
申请号：PCT/IB2009/051812
申请日：2009-05-04
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , ERHARD, Klaus , FORTHMANN, Peter , PROKSA, Roland
发明人： ERHARD, Klaus , FORTHMANN, Peter , PROKSA, Roland
IPC分类号： G06T11/00
CPC分类号： G06T11/005 , G06T2211/432
摘要： A method includes generating simulated complete projection data based on acquisition projection data, which is incomplete projection data, and virtual projection data, which completes the incomplete projection data and reconstructing the simulated complete projection data to generate volumetric image data. An alternative method includes supplementing acquisition image data generated from incomplete projection data with supplemental data to expand a volume of a reconstructable field of view and employing an artifact correction to correct a correctable field of view based on the expanded reconstructable field of view.
摘要翻译：一种方法包括基于不完全投影数据的获取投影数据和虚拟投影数据生成模拟完整投影数据，完成不完全投影数据并重建模拟完整投影数据以产生体积图像数据。一种替代方法包括：通过补充数据补充由不完全投影数据生成的获取图像数据，以扩展可重建视场的体积，并采用伪影校正，以便基于扩展的可重构视野来校正可校正视场。

9. 发明申请

WO2009004571A1 METHOD AND APPARATUS FOR IMAGE RECONSTRUCTION 审中-公开
标题翻译：图像重建方法与装置
公开(公告)号：WO2009004571A1
公开(公告)日：2009-01-08
申请号：PCT/IB2008/052632
申请日：2008-07-01
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , FORTHMANN, Peter , PROKSA, Roland
发明人： FORTHMANN, Peter , PROKSA, Roland
IPC分类号： G06T11/00 , G06T5/00
CPC分类号： G06T11/006 , G06T5/50 , G06T2207/10081 , G06T2207/20224
摘要： To reduce artifacts comprised in a CT image, the present invention provides a method comprising the steps of: Reconstructing a first image by processing one first set of CT data using a reconstruction algorithm, the first image comprising an artifact; Generating a second image by processing the first image, the second image comprising a reduced artifact; and Generating a third image by processing the first image and the second image, the third image comprising a further-reduced artifact. In an exemplary embodiment of the present invention, the step of generating the third image comprises the steps of: generating an error image representing the artifacts, based on the second image, and generating the third image by subtracting the error image from the first image. By using the provided method, the artifacts can be greatly reduced and hence a better-quality CT image can be obtained.
摘要翻译：为了减少CT图像中包含的伪影，本发明提供了一种方法，包括以下步骤：使用重构算法通过处理一组第一组CT数据来重建第一图像，第一图像包括伪影; 通过处理第一图像生成第二图像，第二图像包括减少的伪像; 以及通过处理所述第一图像和所述第二图像来生成第三图像，所述第三图像包括进一步减少的伪影。在本发明的示例性实施例中，生成第三图像的步骤包括以下步骤：基于第二图像生成表示伪像的误差图像，并且通过从第一图像中减去误差图像来生成第三图像。通过使用所提供的方法，可以大大减少假象，因此可以获得更好质量的CT图像。

10. 发明申请

WO2010109345A1 METHOD AND APPARATUS FOR BREATHING ADAPTED IMAGING 审中-公开
标题翻译：用于呼吸适应成像的方法和装置
公开(公告)号：WO2010109345A1
公开(公告)日：2010-09-30
申请号：PCT/IB2010/050585
申请日：2010-02-09
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , FORTHMANN, Peter , SCHMITT, Holger , VAN STEVENDAAL, Udo , PROKSA, Roland
发明人： FORTHMANN, Peter , SCHMITT, Holger , VAN STEVENDAAL, Udo , PROKSA, Roland
IPC分类号： A61B6/03 , A61B6/00 , G06T7/20 , A61B6/06
CPC分类号： A61B6/032 , A61B6/027 , A61B6/037 , A61B6/06 , A61B6/488 , A61B6/5217 , A61B6/5235 , A61B6/541 , A61B6/542 , A61B6/545 , A61B6/583 , G06T7/20 , G06T2207/10072 , G06T2207/30004
摘要： A method is provided for imaging a portion of a patient that moves as a patient breathes. A motion map is produced of the portion's motion during a breathing cycle of the patient. A scanning protocol is generated using information obtained from the motion map for a given source/detector position and a given point in the breathing cycle. The scanning protocol comprises at least one setting for at least one imaging apparatus component such that a desired amount of x-ray dosage is applied to the portion of the patient at the given source/detector position and the given point in the breathing cycle. An imaging scan is performed of the portion of the patient. The at least one imaging apparatus component is adjusted during the imaging scan.
摘要翻译：提供了一种用于对患者呼吸时移动的患者的一部分进行成像的方法。在患者的呼吸周期期间，该部分的运动产生运动图。使用从给定源/检测器位置的运动图获得的信息和呼吸周期中的给定点生成扫描协议。扫描方案包括用于至少一个成像设备部件的至少一个设置，使得在给定的源/检测器位置和呼吸周期中的给定点，将期望量的x射线剂量施加到患者的部分。对患者的部分进行成像扫描。在成像扫描期间调整至少一个成像装置部件。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式