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21. 发明申请

WO2006097871A1 METHOD AND DEVICE FOR THE ITERATIVE RECONSTRUCTION OF CARDIAC IMAGES 审中-公开
标题翻译：心脏图像重叠重建的方法和装置
公开(公告)号：WO2006097871A1
公开(公告)日：2006-09-21
申请号：PCT/IB2006/050741
申请日：2006-03-09
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , ZIEGLER, Andy , GRASS, Michael , KOEHLER, Thomas
发明人： ZIEGLER, Andy , GRASS, Michael , KOEHLER, Thomas
IPC分类号： G06T11/00
CPC分类号： G06T11/006 , A61B6/027 , G06T2211/424
摘要： The invention relates to a method and a device for the iterative reconstruction of cross-sectional images of the heart (7) of a patient based on projections (P1, ... P5) from different directions which are for example generated with a helical cone-beam CT scanner. A cardiac weight function (f) quantifies how near the projections (P1, ...) are to a given observation phase (To) of the heart cycle based on simultaneously recorded electrocardiographic signals (ECG). The whole set of projections (P1, ...) is divided into subsets (S1, ...) which each contain only projections corresponding to a similar cardiac weight (f), and an iterative reconstruction algorithm like ART uses in one update or iteration step all projections of such a subset (S1, ...) simultaneousl .
摘要翻译：本发明涉及一种用于基于来自不同方向的突起（P1，... P5）迭代重建患者心脏（7）的横截面图像的方法和装置，其例如用螺旋锥体光束CT扫描仪。心脏重量函数（f）基于同时记录的心电图信号（ECG）量化投影（P1，...）附近的心脏周期的给定观察阶段（To）的距离。整个投影组（P1，...）被划分成子集（S1，...），每个子集（S1，...）仅包含对应于类似心脏重量（f）的投影，并且像ART这样的迭代重建算法在一个更新或迭代步骤将所有这些子集（S1，...）的投影同步化。

22. 发明申请

WO2006051443A1 ENERGY RESOLVED COMPUTER TOMOGRAPHY 审中-公开
标题翻译：能量分析计算机图形学
公开(公告)号：WO2006051443A1
公开(公告)日：2006-05-18
申请号：PCT/IB2005/053565
申请日：2005-11-02
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , GRASS, Michael , KOEHLER, Thomas
发明人： GRASS, Michael , KOEHLER, Thomas
IPC分类号： A61B6/03
CPC分类号： G01T1/2985 , A61B6/032 , A61B6/4241 , A61B6/482 , A61B6/483
摘要： Interpolation of the momentum transfer prior to the filtered backprojection reconstruction in computer tomography baggage inspection or medical applications may not result in best image quality or minimal computational cost. According to an exemplary embodiment of the invention, a non-linear energy binning of an energy-resolved single-row detector is provided, which automatically leads to a Cartesian q-sampling on a parallel rebinned detector. This may avoid the q interpolation prior to the filtered back projection reconstruction, resulting in improved spatial resolution, reduction of computational effort and improved image quality.
摘要翻译：在计算机断层摄影行李检查或医疗应用中的滤波反投影重建之前的动量传递的插值可能不会导致最佳图像质量或最小的计算成本。根据本发明的示例性实施例，提供了能量分辨的单行检测器的非线性能量合并，其自动导致在并行重新组合的检测器上的笛卡尔q取样。这可以避免在滤波反投影重建之前的q内插，导致改善的空间分辨率，减少计算量和改善图像质量。

23. 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.

24. 发明申请

WO2006051445A1 COMPUTER TOMOGRAPHY APPARATUS AND METHOD FOR EXAMINING AN OBJECT OF INTEREST 审中-公开
标题翻译：计算机图形设备和检查对象的方法
公开(公告)号：WO2006051445A1
公开(公告)日：2006-05-18
申请号：PCT/IB2005/053569
申请日：2005-11-02
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , ZIEGLER, Andy , KOEHLER, Thomas , GRASS, Michael
发明人： ZIEGLER, Andy , KOEHLER, Thomas , GRASS, Michael
IPC分类号： A61B6/03
CPC分类号： G01T1/2985 , A61B6/027 , A61B6/032 , A61B6/4241 , A61B6/482 , A61B6/483 , G01V5/0025 , G01V5/005 , G06T11/006 , G06T2211/424
摘要： A computer tomography apparatus (100) for examination of an object of interest (107), the computer tomography apparatus (100) comprising detecting elements (123) adapted to detect electromagnetic radiation coherently scattered from an object of interest (107) in an energy-resolving manner, and a determination unit (118) adapted to determine structural information concerning the object of interest (107) based on a statistical analysis of detecting signals received from the detecting elements (123).
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），所述计算机断层摄影装置（100）包括检测元件（123），所述检测元件适于检测能量相关物体（107）相干散射的电磁辐射，以及确定单元（118），其适于基于从所述检测元件（123）接收的检测信号的统计分析来确定关于感兴趣对象的结构信息（107）。

25. 发明申请

WO2013027138A1 FREQUENCY DEPENDENT COMBINATION OF X-RAY IMAGES OF DIFFERENT MODALITIES 审中-公开
标题翻译：不同模式的X射线图像的频率相关组合
公开(公告)号：WO2013027138A1
公开(公告)日：2013-02-28
申请号：PCT/IB2012/053854
申请日：2012-07-27
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , MAACK, Hanns-Ingo , RÖSSL, Ewald , KOEHLER, Thomas , PROKSA, Roland
发明人： MAACK, Hanns-Ingo , RÖSSL, Ewald , KOEHLER, Thomas , PROKSA, Roland
IPC分类号： G06T5/50
CPC分类号： G06T11/60 , A61B6/484 , G06T5/50 , G06T2207/10116 , G06T2207/20056 , G06T2207/20221 , G06T2207/30004
摘要： The present invention relates to X-ray imaging technology. In phase-contrast imaging, different types of image information, e.g. absorption image information and differential phase-contrast image information, may be obtained by a single image acquisition process. Individual types of image information comprise different image properties. The present invention relates to a frequency dependent combination of different types of image information to obtain a combined image having improved properties over the individual image information and their respective image information type. Accordingly, an apparatus (56) as well as a method (100) for image processing in X-ray imaging of an object is provided comprising receiving (102) first image information of the object of a first image information type, receiving (104) second image information of the object of a second image information type,wherein the second image information type is different from the first image information type. Subsequently the first image information and the second image information is combined(106)to obtain combined image information of the object, wherein the combination of the first image information and the second image information is a frequency-dependent combination, depending on the spatial frequency of the first image information and the second image information.
摘要翻译：本发明涉及X射线成像技术。在相位对比成像中，不同类型的图像信息，例如，吸收图像信息和差分相位差图像信息可以通过单个图像获取处理获得。各种类型的图像信息包括不同的图像属性。本发明涉及不同类型的图像信息的频率相关组合，以获得具有相对于各个图像信息及其各自的图像信息类型具有改进的特性的组合图像。因此，提供了一种装置（56）以及用于对象的X射线成像中的图像处理的方法（100），包括接收（102）第一图像信息类型的对象的第一图像信息，接收（104）第二图像信息类型的对象的第二图像信息，其中第二图像信息类型与第一图像信息类型不同。随后，将第一图像信息和第二图像信息组合（106）以获得对象的组合图像信息，其中第一图像信息和第二图像信息的组合是频率相关组合，其取决于第一图像信息和第二图像信息。

26. 发明申请

WO2013014554A1 IMAGE GENERATION APPARATUS 审中-公开
标题翻译：图像生成装置
公开(公告)号：WO2013014554A1
公开(公告)日：2013-01-31
申请号：PCT/IB2012/053346
申请日：2012-07-02
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GmbH , KOEHLER, Thomas
发明人： KOEHLER, Thomas
IPC分类号： A61B6/03 , G06T5/50 , G06T11/00
CPC分类号： G06T11/008 , A61B6/032 , A61B6/037 , A61B6/463 , A61B6/465 , A61B6/5205 , A61B6/5235 , A61B6/5258 , G06T5/002 , G06T5/50 , G06T2207/10081 , G06T2207/30004
摘要： The invention relates to an image generation apparatus for generating an image of an object. An image providing unit (11, 16) provides a first image of the object and a second image of the object, wherein the first image has a smaller noise level than the second image. A display window providing unit (12) provides a display window being indicative of the range of image values shown on a display (14), and a combining unit (13) generates a combination image by combining the first image and the second image depending on the window width of the provided display window. This allows considering the influence of the display window on the noise appearance. Thus, by taking into account the first image and the second image having different noise levels and the provided display window, a combined image can be generated, which has an improved noise appearance.
摘要翻译：本发明涉及一种用于生成对象的图像的图像生成装置。图像提供单元（11,16）提供对象的第一图像和对象的第二图像，其中第一图像具有比第二图像更小的噪声水平。显示窗口提供单元（12）提供指示显示器（14）上显示的图像值的范围的显示窗口，并且组合单元（13）通过组合第一图像和第二图像来生成组合图像，这取决于提供的显示窗口的窗口宽度。这允许考虑显示窗对噪声外观的影响。因此，通过考虑具有不同噪声水平的第一图像和第二图像以及所提供的显示窗口，可以生成具有改善的噪声外观的组合图像。

27. 发明申请

WO2012080900A1 METHOD AND DEVICE FOR ANALYSING A REGION OF INTEREST IN AN OBJECT USING X-RAYS 审中-公开
标题翻译：用于分析使用X-RAYS的对象中的兴趣区域的方法和装置
公开(公告)号：WO2012080900A1
公开(公告)日：2012-06-21
申请号：PCT/IB2011/055463
申请日：2011-12-05
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , CARLSEN, Ingwer-Curt , KOEHLER, Thomas , MARTENS, Gerhard , RÖSSL, Ewald , WIEMKER, Rafael
发明人： CARLSEN, Ingwer-Curt , KOEHLER, Thomas , MARTENS, Gerhard , RÖSSL, Ewald , WIEMKER, Rafael
IPC分类号： G01N23/04 , G01N23/20
CPC分类号： G06T7/0012 , G01N23/046 , G01N2223/419
摘要： A method and a device for analyzing a region of interest in an object is proposed. The method comprises: (a) providing measurement data by a differential phase contrast X-ray imaging system, and (b) analyzing characteristics of the object in the region of interest. Therein, the measurement data comprise a 2-dimensional or 3 -dimensional set of pixels wherein for each pixel the measurement data comprises three types of image data spatially aligned with each other, including (i) absorption representing image data A, (ii) differential phase contrast representing image data D, and (iii) coherence representing image data C. The analyzing step is based, for each pixel, on a combination of at least two of information comprised in the absorption representing image data A and information comprised in the differential phase contrast representing image data D and information comprised in the coherence representing image data C.
摘要翻译：提出了一种用于分析对象中的感兴趣区域的方法和装置。该方法包括：（a）通过差分相位X射线成像系统提供测量数据，以及（b）分析感兴趣区域中物体的特征。其中，测量数据包括2维或3维像素集合，其中对于每个像素，测量数据包括彼此空间对准的三种类型的图像数据，包括（i）表示图像数据A的吸收，（ii）差分表示图像数据D的相位对比度和（iii）表示图像数据C的相干性。分析步骤基于每个像素，包括在表示图像数据A的吸收中包括的信息中的至少两个信息和差分中包含的信息表示图像数据D的相位对比度和表示图像数据C的相干性中包含的信息。

28. 发明申请

WO2011070521A1 CALIBRATION OF DIFFERENTIAL PHASE-CONTRAST IMAGING SYSTEMS 审中-公开
标题翻译：差分相位成像系统的校准
公开(公告)号：WO2011070521A1
公开(公告)日：2011-06-16
申请号：PCT/IB2010/055664
申请日：2010-12-08
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , VOGTMEIER, Gereon , ENGEL, Klaus Jürgen , GELLER, Dieter , KOEHLER, Thomas , ROESSL, Ewald
发明人： VOGTMEIER, Gereon , ENGEL, Klaus Jürgen , GELLER, Dieter , KOEHLER, Thomas , ROESSL, Ewald
IPC分类号： A61B1/00
CPC分类号： A61B6/4291 , A61B6/4092 , A61B6/484 , A61B6/583 , G21K2207/005
摘要： The present invention relates to an X-ray imaging system and a method for differential phase - contrast imaging of an object. To improve calibration of differential phase - contrast imaging systems and the alignment of the gratings an X-ray imaging system is provided that comprises an X-ray emitting arrangement providing at least partially coherent X-ray radiation and an X-ray detection arrangement comprising a phase- shift diffraction grating, a phase analyzer grating, and an X-ray image detector, all arranged along an optical axis. For stepping, the gratings and/or the X-ray emitting arrangement are provided with at least two actuators arranged opposite to each other with reference to the optical axis. For calibration, calibration projections are acquired without an object, wherein, the emitted X-ray radiation or one of the gratings is stepwise displaced with a calibration displacement value. For examination, measurement projections are acquired with an object, wherein the emitted X-ray radiation or one of the gratings is stepwise displaced with a measurement, a calibration projection is associated to each of the measurement projections by registering the latter with the calibration projections.
摘要翻译：本发明涉及一种用于对象的差分相位对比成像的X射线成像系统和方法。为了改进差分相位对比成像系统的校准和光栅的对准，提供了一种X射线成像系统，其包括提供至少部分相干X射线辐射的X射线发射装置和包括相移衍射光栅，相位分析仪光栅和X射线图像检测器，均沿光轴排列。对于步进，光栅和/或X射线发射装置设置有相对于光轴彼此相对布置的至少两个致动器。对于校准，在没有物体的情况下获取校准投影，其中，所发射的X射线辐射或其中一个光栅以校准位移值逐步位移。为了进行检查，用物体获取测量投影，其中所发射的X射线辐射或其中一个光栅通过测量而逐步移位，通过将校准投影与校准投影相对应地将校准投影与每个测量投影相关联。

29. 发明申请

WO2010134012A1 GRATING FOR PHASE-CONTRAST IMAGING 审中-公开
标题翻译：用于相位对比成像的图像
公开(公告)号：WO2010134012A1
公开(公告)日：2010-11-25
申请号：PCT/IB2010/052168
申请日：2010-05-17
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KOEHLER, Thomas , ROESSL, Ewald
发明人： KOEHLER, Thomas , ROESSL, Ewald
IPC分类号： G21K1/06
CPC分类号： G21K1/06 , G21K2207/005
摘要： The invention relates to gratings for X-ray differential phase-contrast imaging, a focus detector arrangement and X-ray system for generating phase-contrast images of an object and a method of phase-contrast imaging for examining an object of interest. In order to provide gratings with a high aspect ratio but low costs, a grating for X-ray differential phase- contrast imaging is proposed, comprising a first sub-grating (112), and at least a second sub- grating (114; 116; 118), wherein the sub-gratings each comprise a body structure (120) with bars (122) and gaps (124) being arranged periodically with a pitch (a), wherein the sub- gratings (112; 114; 116; 118) are arranged consecutively in the direction of the X-ray beam, and wherein the sub-gratings (112; 114; 116; 118) are positioned displaced to each other perpendicularly to the X-ray beam.
摘要翻译：本发明涉及用于X射线差分相位对比成像的光栅，用于产生对象的相位对比图像的焦点检测器布置和X射线系统以及用于检查感兴趣对象的相位对比成像方法。为了提供具有高纵横比但成本较低的光栅，提出了一种用于X射线差分相位对比成像的光栅，包括第一子光栅（112）和至少第二子光栅（114; 116 ; 118），其中所述子光栅各自包括具有杆（122）和间隙（124）的主体结构（120），所述杆具有间距（a）周期性地布置，其中所述子光栅（112; 114; 116; 118 ）沿X射线束的方向连续布置，并且其中子光栅（112; 114; 116; 118）被定位成垂直于X射线束彼此位移。

30. 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）。

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