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21. 发明申请

WO2007119124A1 CONE BEAM COMPUTED TOMOGRAPHY WITH MULTIPLE PARTIAL SCANNING TRAJECTORIES 审中-公开
标题翻译：具有多个部分扫描轨迹的锥体光束计算机图
公开(公告)号：WO2007119124A1
公开(公告)日：2007-10-25
申请号：PCT/IB2006/050497
申请日：2006-04-19
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N. V. , BONTUS, Claas , KOEHLER, Thomas , KOKEN, Peter , ZIEGLER, Andy
发明人： BONTUS, Claas , KOEHLER, Thomas , KOKEN, Peter , ZIEGLER, Andy
IPC分类号： A61B6/03 , G06T11/00
CPC分类号： G06T11/006 , A61B6/027 , G06T11/005
摘要： A computer tomography apparatus (100) for examination of an object of interest (107) comprising an electromagnetic radiation source (104) adapted to emit electromagnetic radiation to an object of interest (107), a detecting device (108) adapted to detect electromagnetic radiation generated by the electromagnetic radiation source (104) and passed through the object of interest (107), and a motion generation device (101, 119) adapted to move the electromagnetic radiation source (104) and the detecting device (108) with respect to the object of interest (107) along a first trajectory and along a second trajectory which differs from the first trajectory, wherein the second trajectory is selected in such a manner that electromagnetic radiation detected during performing the second trajectory provides data which complete mathematically incomplete data detected during performing the first trajectory to thereby allow a reconstruction of structural information concerning the object of interest (107).
摘要翻译：一种用于检查感兴趣对象（107）的计算机断层摄影装置（100），包括适于向感兴趣对象（107）发射电磁辐射的电磁辐射源（104），适于检测电磁辐射的检测装置由电磁辐射源（104）产生并通过感兴趣物体（107）的运动产生装置（101,119），适于相对于电磁辐射源（104）移动电磁辐射源（104）和检测装置感兴趣的物体（107）沿着第一轨迹并且沿着与第一轨迹不同的第二轨迹，其中以这样的方式选择第二轨迹，使得在执行第二轨迹期间检测到的电磁辐射提供了完全数学上不完整的数据检测的数据在执行第一轨迹期间，从而允许重建关于感兴趣对象的结构信息（107）。

22. 发明申请

WO2006109227A2 ENERGY DISTRIBUTION RECONSTRUCTION IN CT 审中-公开
标题翻译： CT中的能量分配重建
公开(公告)号：WO2006109227A2
公开(公告)日：2006-10-19
申请号：PCT/IB2006/051068
申请日：2006-04-07
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N. V. , ZIEGLER, Andy
发明人： ZIEGLER, Andy
IPC分类号： G01V5/00 , G01T1/29 , G01T1/164
CPC分类号： G01T1/2985
摘要： The reconstruction of the energy distribution at a detector with a detector element that consists of many small pixels, which count the number of photons above certain thresholds, is performed with a Maximum Likelihood analysis, according to an aspect of the present invention. Thus, the reconstruction scheme may use the redundancy in the measurement and may treat the Poisson statistics accordingly.
摘要翻译：根据本发明的一个方面，利用具有最大似然分析的多个小像素组成的检测器元件的检测器重建能量分布，所述小像素计数高于特定阈值的光子数量。因此，重建方案可以使用测量中的冗余度，并且可以相应地对待泊松统计。

23. 发明申请

WO2006040713A1 COMPUTER TOMOGRAPHY METHOD 审中-公开
标题翻译：计算机测绘方法
公开(公告)号：WO2006040713A1
公开(公告)日：2006-04-20
申请号：PCT/IB2005/053286
申请日：2005-10-06
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N. V. , KOEHLER, Thomas , ZIEGLER, Andy
发明人： KOEHLER, Thomas , ZIEGLER, Andy
IPC分类号： A61B6/03 , A61N5/10 , A61B5/05 , A61B6/00
CPC分类号： A61B6/032 , A61B6/027
摘要： The invention relates to a computer tomography method with a circular relative movement between the beam source and an iterative reconstruction method suitable therefor. The reconstruction method is substantially improved by deriving the first approximation image from a CT image, which is obtained from a prior acquisition during helical relative movement.
摘要翻译：本发明涉及一种计算机断层摄影方法，其具有在光束源之间的圆周相对运动和适合于其的迭代重建方法。通过从螺旋相对运动期间的先前获取获得的CT图像导出第一近似图像，实质上改进了重建方法。

24. 发明申请

WO2007109408A2 COMPUTED TOMOGRAPHY DATA ACQUISITION APPARATUS AND METHOD 审中-公开
标题翻译：计算机图形数据采集装置和方法
公开(公告)号：WO2007109408A2
公开(公告)日：2007-09-27
申请号：PCT/US2007/063279
申请日：2007-03-05
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , U.S. PHILIPS CORPORATION , ZIEGLER, Andy , NIELSEN, Tim
发明人： ZIEGLER, Andy , NIELSEN, Tim
CPC分类号： G01T1/2985 , A61B6/032 , A61B6/4014 , A61B6/482 , G01T1/1648
摘要： A computed tomography scanner includes a first (20) and second (21) detectors. The second detector (21) has a relatively higher spatial resolution and a relatively smaller field of view (204) than that of the first detector (20). Projection data generated by the detectors (20, 21) is combined and reconstructed so as to generate relatively high resolution volumetric data (318) indicative of a region of interest (314) in an object under examination.
摘要翻译：计算机断层扫描仪包括第一检测器（20）和第二检测器（21）。第二检测器（21）具有比第一检测器（20）更高的空间分辨率和相对更小的视场（204）。由检测器（20,21）生成的投影数据被组合和重建，以便产生指示被检查物体中的感兴趣区域（314）的相对较高分辨率的体积数据（318）。

25. 发明申请

WO2008008663A2 ENERGY SPECTRUM RECONSTRUCTION 审中-公开
标题翻译：能源光谱重建
公开(公告)号：WO2008008663A2
公开(公告)日：2008-01-17
申请号：PCT/US2007/072694
申请日：2007-07-02
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , U.S. PHILIPS CORPORATION , ZIEGLER, Andy , PROKSA, Roland
发明人： ZIEGLER, Andy , PROKSA, Roland
CPC分类号： G01T1/2985
摘要： A computed tomography system includes an x-ray source (108) that rotates about and emits radiation through an imaging region (116). At least one finite energy resolution detector (112) detects the emitted radiation. The at least one finite resolution detector (112) includes a plurality of sub-detectors (204). Each of the plurality of sub-detectors (204) is associated with one or more different energy thresholds. Each of the energy thresholds is used to count a number of incident photons based on a corresponding energy level. A reconstruction system (136) reconstructs the photon counts to generate one or more images of a subject residing within the imaging region (116).
摘要翻译：计算机断层摄影系统包括绕着成像区域（116）旋转并发射辐射的x射线源（108）。至少一个有限能量分辨率检测器（112）检测发射的辐射。所述至少一个有限分辨率检测器（112）包括多个子检测器（204）。多个子检测器（204）中的每一个与一个或多个不同的能量阈值相关联。每个能量阈值用于根据相应的能级对一些入射光子进行计数。重建系统（136）重建光子计数以产生驻留在成像区域（116）内的对象的一个或多个图像。

26. 发明申请

WO2006038142A1 IMAGE RECONSTRUCTION WITH VOXEL DEPENDENT INTERPOLATION 审中-公开
标题翻译：具有VOXEL依赖插值的图像重建
公开(公告)号：WO2006038142A1
公开(公告)日：2006-04-13
申请号：PCT/IB2005/053148
申请日：2005-09-22
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , ZIEGLER, Andy , KOEHLER, Thomas , NIELSEN, Tim , PROKSA, Roland , HEUSCHER, Dominic, J.
发明人： ZIEGLER, Andy , KOEHLER, Thomas , NIELSEN, Tim , PROKSA, Roland , HEUSCHER, Dominic, J.
IPC分类号： G06T11/00
CPC分类号： G06T11/006
摘要： A radiographic imaging apparatus includes a radiation detector (16) and a radiation source (12) which projects a non-parallel beam of radiation into field of view (14). A footprint of each voxel (v) which is projected on the detector (16) is corrected based on the position of the voxel (v) in the field of view (14) in relation to the radiation detector (16) and the radiation source (12). The contributions from substantially parallel redundant projections are further combined based on a fractional distance frac from a center point (82) of the voxel (v) to a center of each of the adjacent redundant projections.
摘要翻译：放射线照相成像装置包括辐射检测器（16）和辐射源（12），其将非平行辐射束投射到视场（14）中。基于在视场（14）中相对于放射线检测器（16）的体素（v）的位置和辐射源（v）来校正投影在检测器（16）上的每个体素（v）的足迹（12）。基于分数距离

27. 发明申请

WO2008021661A2 STEREO TUBE COMPUTED TOMOGRAPHY 审中-公开
标题翻译：立体管计算机层析成像
公开(公告)号：WO2008021661A2
公开(公告)日：2008-02-21
申请号：PCT/US2007/074091
申请日：2007-07-23
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , U. S. PHILIPS CORPORATION , PROKSA, Roland , ZIEGLER, Andy
发明人： PROKSA, Roland , ZIEGLER, Andy
CPC分类号： G01T1/2985 , A61B6/027 , A61B6/032 , A61B6/4014 , G01T1/1647
摘要： A computed tomography system includes at least two x-ray sources (108), a at least one common detector (124), and a reconstruction system (136). The at least two x-ray sources (108) are aligned at different z-axis locations at about a same angular position and concurrently emit radiation that traverses an imaging region (116). The at least one detector (124) detects radiation emitted by the at least two x-ray source (108) and generates composite data indicative of the detected radiation. The reconstruction system (136) reconstructs the composite data to generate one or more images.
摘要翻译：计算机断层摄影系统包括至少两个X射线源（108），至少一个公共检测器（124）和重建系统（136）。所述至少两个X射线源（108）在大约相同的角位置处在不同的z轴位置对齐，并且同时发射穿过成像区域（116）的辐射。所述至少一个检测器（124）检测由所述至少两个x射线源（108）发射的辐射并且生成指示检测到的辐射的合成数据。重建系统（136）重建复合数据以生成一个或多个图像。

28. 发明申请

WO2007140093A1 MULTI-TUBE IMAGING SYSTEM RECONSTRUCTION 审中-公开
标题翻译：多管成像系统重建
公开(公告)号：WO2007140093A1
公开(公告)日：2007-12-06
申请号：PCT/US2007/068538
申请日：2007-05-09
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , U.S. PHILIPS CORPORATION , ZIEGLER, Andy
发明人： ZIEGLER, Andy
IPC分类号： A61B6/03
CPC分类号： A61B6/4014 , A61B6/032 , A61B6/508 , G06T11/005
摘要： A tomographic apparatus (10) includes at least two x-ray sources (14) that rotate about and alternately emit radiation into an imaging region (22). The at least two x-ray sources (14) emit radiation from a first set of angular positions during a first data acquisition cycle and from a different set of angular positions during a subsequent data acquisition cycle. At least two sets of detectors (24) detect primary radiation emitted by a corresponding one of the at least two x-ray sources (14) and produce data representative of the detected radiation. An interleaver (32) interleaves the data associated with the first and the subsequent data acquisition cycles for each of the at least two x-ray sources (14).
摘要翻译：断层摄影装置（10）包括至少两个X射线源（14），其围绕并交替地将辐射发射到成像区域（22）中。所述至少两个X射线源（14）在第一数据采集周期期间从第一组角位置发射辐射，并且在随后的数据采集周期期间从不同的一组角度位置发射辐射。至少两组检测器（24）检测由所述至少两个X射线源（14）中的相应一个发射的主辐射，并产生表示检测到的辐射的数据。交织器（32）对于至少两个x射线源（14）中的每一个交织与第一和随后的数据采集周期相关联的数据。

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