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31. 发明申请

WO2009083866A1 3D RECONSTRUCTION OF A BODY AND OF A BODY CONTOUR 审中-公开
标题翻译：身体和身体轮廓的3D重建
公开(公告)号：WO2009083866A1
公开(公告)日：2009-07-09
申请号：PCT/IB2008/055350
申请日：2008-12-16
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N. V. , ERHARD, Klaus , GRASS, Michael , SCHAEFER, Dirk
发明人： ERHARD, Klaus , GRASS, Michael , SCHAEFER, Dirk
IPC分类号： G06T11/00
CPC分类号： G06T11/006 , G06T2211/432
摘要： The invention proposes a 3D reconstruction of a body and a body contour from transversally truncated projections using a polyhedral object model. Possible clinical applications arise in the field of guided biopsies on acquisition systems equipped with a flat panel detector, where truncated projections cannot be avoided in thorax and abdominal scan protocols. From, for example, a rotational run both a 3D volume reconstruction and a surface mesh reconstruction of a patient's shape is generated and then visualized simultaneously in order to help the physician guide the biopsy device and judge the distance from the patient's skin to the tissue of interest inside the reconstructed volume.
摘要翻译：本发明提出了使用多面体对象模型从横截面的突起中进行身体和身体轮廓的三维重建。可能的临床应用出现在配备有平板检测器的采集系统上的引导活检领域，其中在胸部和腹部扫描方案中不能避免截断的突起。例如，通过旋转运行，生成3D体积重建和患者形状的表面网格重建，然后同时可视化，以帮助医生引导活检装置并判断从患者皮肤到组织的距离重建体积内的兴趣。

32. 发明申请

WO2007031899A2 EFFICIENT ITERATIVE FOUR-DIMENSIONAL CARDIAC CONE-BEAM CT RECONSTRUCTION 审中-公开
标题翻译：高效的四维心脏重建CT重建
公开(公告)号：WO2007031899A2
公开(公告)日：2007-03-22
申请号：PCT/IB2006/053055
申请日：2006-09-01
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N. V. , GRASS, Michael , ZIEGLER, Andy , NIELSEN, Tim
发明人： GRASS, Michael , ZIEGLER, Andy , NIELSEN, Tim
CPC分类号： A61B6/032 , A61B6/027 , A61B6/541 , G06T11/006 , G06T2211/412 , G06T2211/424
摘要： The increasing cone angle of current high-end and future CT systems leads to a decrease in image quality if approximate cone-beam reconstruction methods are used. According to an exemplary embodiment of the present invention, an iterative four-dimensional cardiac CT reconstruction is provided, in which phase volumes are selected from the four-dimensional data set, each having the same spatial volume at different phase points. Corresponding voxels inside these phase volumes are then forward projected onto the same projection. After calculation of a different projection, these voxels are updated. This may provide for an efficient implementation of an iterative four-dimensional cardiac cone-beam CT reconstruction.
摘要翻译：目前的高端和未来CT系统的锥角越来越大，如果使用近似锥束重建方法，则会导致图像质量下降。根据本发明的示例性实施例，提供了一种迭代的四维心脏CT重建，其中从四维数据集中选择相位体积，每个四维数据集在不同相位处具有相同的空间体积。然后将这些相位体积内的相应体素向前投影到相同的投影上。在计算了不同的投影之后，这些体素被更新。这可以提供迭代四维心脏锥束CT重建的有效实施。

33. 发明申请

WO2005093662A1 GATED CONE-BEAM COMPUTED TOMOGRAPHY RECONSTRUCTION WITH MOTION COMPENSATION 审中-公开
标题翻译：具有运动补偿的Gated CONE-BEAM计算机图像重建
公开(公告)号：WO2005093662A1
公开(公告)日：2005-10-06
申请号：PCT/IB2005/050940
申请日：2005-03-18
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N. V. , MANZKE, Robert , KOEHLER, Thomas , GRASS, Michael , MOVASSAGHI, Babak
发明人： MANZKE, Robert , KOEHLER, Thomas , GRASS, Michael , MOVASSAGHI, Babak
IPC分类号： G06T11/00
CPC分类号： G06T11/005 , G06T2211/412
摘要： E.g. in cardiac cone-beam CT, the source path is interrupted due to the fact that the projection data is gated. According to the present invention, a method is provided to obtain projection data corresponding to an uninterrupted source trajectory from such a gated data set. For this purpose, a motion compensation is applied. Advantageously, a complete data set may be determined allowing for an approximate or an exact reconstruction method to be applied to the completed data set without interruption of the image generation.
摘要翻译：例如。在心脏锥束CT中，由于投影数据被门控的原因，源路径被中断。根据本发明，提供了一种从这种门控数据集获得对应于不中断的源轨迹的投影数据的方法。为此，应用运动补偿。有利地，可以确定完整数据集，允许将近似或精确重建方法应用于完成的数据集而不中断图像生成。

34. 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。

35. 发明申请

WO2003085390A2 COMPUTED TOMOGRAPHY METHOD 审中-公开
标题翻译：计算机测图法
公开(公告)号：WO2003085390A2
公开(公告)日：2003-10-16
申请号：PCT/IB2003/001284
申请日：2003-04-09
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , GRASS, Michael , KOEHLER, Thomas , PROKSA, Roland
发明人： GRASS, Michael , KOEHLER, Thomas , PROKSA, Roland
IPC分类号： G01N23/00
CPC分类号： A61B6/032 , A61B6/027 , G01N23/046 , G01N2223/419 , G06T11/005 , Y10S378/901
摘要： The invention relates to a computed tomography method in which a rebinning operation is carried out so as to form parallel fan beams whose rays traverse a plane, containing the axis of rotation, in equidistant puncture points. Reconstruction is performed for rays which extend perpendicularly to said planes. Such a transition from a cone beam geometry to a parallel beam geometry enables very fast reconstruction which can be carried out notably for CT fluoroscopy.
摘要翻译：本发明涉及一种计算机断层摄影方法，其中进行重组操作以形成平行扇形束，其平行扇形束横穿包含旋转轴线的平面在等距穿刺点中。对垂直于所述平面延伸的射线进行重建。从锥形束几何形状到平行光束几何形状的这种过渡使得能够非常快速地重建，这可以用于CT荧光透视。

36. 发明申请

WO2010131130A1 PERFUSION IMAGING 审中-公开
标题翻译：灌注成像
公开(公告)号：WO2010131130A1
公开(公告)日：2010-11-18
申请号：PCT/IB2010/051541
申请日：2010-04-09
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , PROKSA, Roland , GRASS, Michael
发明人： PROKSA, Roland , GRASS, Michael
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/481 , A61B6/482 , A61B6/486 , A61B6/504 , A61B6/507
摘要： A method includes decomposing, with a decomposer (118), agent-based time series projection data for an object or a subject into at least an agent based component. A projection data decomposer (118) includes a time series decomposer (204) that determines agent-based projection data based on agent-based time series projection data based on at least two energy dependent components. A computer readable storage medium containing instructions which, when executed by a computer, cause the computer to perform the act of: determining an agent-based component of agent-based time series projection data utilizing at least two components of the agent-based time series projection.
摘要翻译：方法包括使用分解器（118）将用于对象或对象的基于代理的时间序列投影数据分解成至少基于代理的组件。投影数据分解器（118）包括基于基于代理的时间序列投影数据基于至少两个能量相关分量来确定基于代理的投影数据的时间序列分解器（204）。一种包含指令的计算机可读存储介质，所述指令在被计算机执行时使得所述计算机执行以下动作：使用基于代理的时间序列的至少两个组件来确定基于代理的时间序列投影数据的基于代理的组件投影。

37. 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）。

38. 发明申请

WO2003085390A3 COMPUTED TOMOGRAPHY METHOD 审中-公开
公开(公告)号：WO2003085390A3
公开(公告)日：2003-10-16
申请号：PCT/IB2003/001284
申请日：2003-04-09
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , GRASS, Michael , KOEHLER, Thomas , PROKSA, Roland
发明人： GRASS, Michael , KOEHLER, Thomas , PROKSA, Roland
IPC分类号： G01N23/04
摘要： The invention relates to a computed tomography method in which a rebinning operation is carried out so as to form parallel fan beams whose rays traverse a plane, containing the axis of rotation, in equidistant puncture points. Reconstruction is performed for rays which extend perpendicularly to said planes. Such a transition from a cone beam geometry to a parallel beam geometry enables very fast reconstruction which can be carried out notably for CT fluoroscopy.

39. 发明申请

WO2003065894A1 SEQUENTIAL COMPUTED TOMOGRAPHY METHOD 审中-公开
标题翻译：顺序计算的TOMOGRAPHY方法
公开(公告)号：WO2003065894A1
公开(公告)日：2003-08-14
申请号：PCT/IB2003/000314
申请日：2003-01-30
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , GRASS, Michael , KÖHLER, Thomas
发明人： GRASS, Michael , KÖHLER, Thomas
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/027 , Y10S378/901
摘要： The invention relates to a computed tomography method in which an examination zone is irradiated from two mutually offset, preferably circular trajectories. In an intermediate region the absorption distribution is reconstructed by means of measuring values from both trajectories, the weight with which the measuring values are used being larger as the distance between the voxel to be reconstructed and the relevant trajectory is smaller.
摘要翻译：本发明涉及一种计算机断层摄影方法，其中从两个相互偏移，优选圆形轨迹照射检查区。在中间区域中，通过来自两个轨迹的测量值重建吸收分布，使用测量值的重量随着待重建的体素与相关轨迹之间的距离较小而变大。

40. 发明申请

WO2006064419A1 ELECTRON COMPUTER TOMOGRAPHY METHOD AND ELECTRON COMPUTER TOMOGRAPH 审中-公开
标题翻译：电子计算机计算机方法和电子计算机图形
公开(公告)号：WO2006064419A1
公开(公告)日：2006-06-22
申请号：PCT/IB2005/054118
申请日：2005-12-08
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , GRASS, Michael , KÖHLER, Thomas
发明人： GRASS, Michael , KÖHLER, Thomas
IPC分类号： G01N23/04 , A61B6/03
CPC分类号： G01N23/046 , A61B6/027 , A61B6/032 , A61B6/4028 , A61B6/4488 , G01N2223/419
摘要： There is provided an electron computer tomography method for recording a moving object (27), in which an electron beam is deflected onto an anode arc (14) in order to generate X-ray radiation which passes through an object (27) and is picked up by a detector device (28), wherein the X-ray radiation leaves the anode arc (14) in the form of a fan-shaped beam having a source trajectory (40) in the form of a circle segment around the object (27) and the starting point (41) of the source trajectory (40) can be changed. Also provided is an electron computer tomograph for recording a moving object (27), comprising an electron gun (8), a focusing coil (12), a curvature coil (16), an anode arc (14) for generating an X-ray beam by being struck by an electron beam of the electron gun (8), and a detector device (28) for detecting the X-ray radiation transmitted through a volume (26), said X-ray radiation having a source trajectory (40) in the form of a circle segment at the anode arc (14) and a variable starting point (41) of the source trajectory (40).
摘要翻译：提供了一种用于记录运动物体（27）的电子计算机断层摄影方法，其中电子束偏转到阳极弧（14）上，以便产生穿过物体（27）并被拾取的X射线辐射（28），其中X射线辐射以具有围绕物体（27）的圆弧形式的源轨迹（40）的扇形梁的形式离开阳极弧（14））和源轨迹（40）的起点（41）可以改变。还提供了一种用于记录运动物体（27）的电子计算机断层摄影机，包括电子枪（8），聚焦线圈（12），曲率线圈（16），用于产生X射线的阳极弧通过被电子枪（8）的电子束撞击的光束;以及用于检测透过体积（26）的X射线辐射的检测器装置（28），所述X射线辐射具有源轨迹（40）在阳极弧（14）处的圆形段和源轨迹（40）的可变起点（41）的形式。

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