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91. 发明申请

WO2009077978A1 METHOD FOR ACQUIRING 3-DIMENSIONAL IMAGES OF A MYOCARDIUM, PARTICULARLY OF A MYOCARDIAL BLUSH 审中-公开
标题翻译：用于获取心肌肥大的三维图像的方法，特别是心肌肥大
公开(公告)号：WO2009077978A1
公开(公告)日：2009-06-25
申请号：PCT/IB2008/055325
申请日：2008-12-16
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , HANSIS, Eberhard , GRASS, Michael
发明人： HANSIS, Eberhard , GRASS, Michael
IPC分类号： G06T11/00
CPC分类号： G06T11/006 , A61B6/481 , A61B6/504 , A61B6/541 , G06T2211/412
摘要： A method and an apparatus for acquiring 3-dimensional images (19) of a myocardialblush of a myocardium (12) are proposed. 2-dimensional X-rayimages (13) of an acquisition region comprising the myocardium (12) and coronary arteries (11) are acquired (103) under different projection angles and optionally in different states of heart motion using a C-armsystem. Optionallya motion vector field inside of a reconstruction volume comprising myocardium (12) is estimated (107). A 3-dimensional image (19) of the myocardium in one state of the motion is reconstructed (111) from 2- dimensional X-rayimages (13). Optionally the estimated motion vector field is used for the 3-dimensional reconstruction (19) in order to compensate for the heart motion.
摘要翻译：提出了用于获取心肌（12）的心肌灌注的三维图像（19）的方法和装置。使用C型臂系统在不同的投影角度和任选地以不同的心脏运动状态获取包含心肌（12）和冠状动脉（11）的采集区域的二维X射线图像（13）。可选地估计包括心肌（12）的重建体内的运动矢量场（107）。在二维X射线图像（13）中重建（111）运动的一个状态的心肌的三维图像（19）。可选地，估计的运动矢量场用于三维重建（19），以补偿心脏运动。

92. 发明申请

WO2009063352A1 APPARATUS FOR DETERMINING A PARAMETER OF A MOVING OBJECT 审中-公开
标题翻译：用于确定移动对象参数的装置
公开(公告)号：WO2009063352A1
公开(公告)日：2009-05-22
申请号：PCT/IB2008/054573
申请日：2008-11-04
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , GRASS, Michael , ZIEGLER, Andy
发明人： GRASS, Michael , ZIEGLER, Andy
IPC分类号： G06T7/20
CPC分类号： G06T7/251 , G06T7/246 , G06T2207/10076 , G06T2207/10081 , G06T2207/20004 , G06T2207/20092 , G06T2207/30048
摘要： The present invention relates to an apparatus for determining a parameter of a moving object, wherein the apparatus comprises an adaptive model providing unit (12) for providing an adaptive model of the object. The user can define the region of the adaptive model by a user interface (13). The apparatus further comprises an image data set providing unit (14) for providing a spatially and temporally dependent image data set of the moving object and an adaptation unit (15) for adapting at least a defined region of the adaptive model to the spatially and temporally dependent image data set for determining a spatially and temporally dependence of the defined region. The parameter of the moving object is determined depending on the spatially and temporally dependence of the defined region by a parameter determining unit (16).
摘要翻译：本发明涉及一种用于确定移动物体的参数的装置，其中，所述装置包括用于提供对象的自适应模型的自适应模型提供单元（12）。用户可以通过用户界面（13）来定义自适应模型的区域。该装置还包括用于提供移动物体的空间和时间上依赖的图像数据集的图像数据集提供单元（14），以及适配单元（15），用于至少将自适应模型的定义区域适应于空间和时间上用于确定所定义区域的空间和时间依赖性的依赖图像数据集。取决于由参数确定单元（16）定义的区域的空间和时间依赖性来确定移动对象的参数。

93. 发明申请

WO2009007910A2 METHOD FOR ACQUIRING 3-DIMENSIONAL IMAGES OF CORONARY VESSELS, PARTICULARLY OF CORONARY VEINS 审中-公开
标题翻译：获取冠状动脉，特别是冠状动脉三维图像的方法
公开(公告)号：WO2009007910A2
公开(公告)日：2009-01-15
申请号：PCT/IB2008/052737
申请日：2008-07-08
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , JANDT, Uwe , SCHAEFER, Dirk , GRASS, Michael
发明人： JANDT, Uwe , SCHAEFER, Dirk , GRASS, Michael
IPC分类号： A61B6/00 , G06T11/00
CPC分类号： A61B6/504 , A61B6/4441 , A61B6/463 , A61B6/481 , A61B6/541 , G06T7/0012 , G06T7/564 , G06T7/596 , G06T7/60 , G06T11/006 , G06T17/00 , G06T2200/08 , G06T2207/10112 , G06T2207/10116 , G06T2207/20044 , G06T2207/30101 , G06T2211/404 , G06T2211/412
摘要： A method and an apparatus for acquiring 3-dimensional images of coronary vessels (11), particularly of coronary veins, is proposed. 2-dimensional X-ray images (13) are acquired within a same phase of a cardiac motion. Then, a 3- dimensional centerline model (15) is generated based on these 2-dimensional images. From 2-dimensional projections of the centerline model into respective projection planes, the local diameters (w) of the vessels in the projection plane can be derived. Having the diameters, a 3-dimensional hull model of the vessel system can be generated and, optionally, 4-dimensional information about the vessel movement can be derived.
摘要翻译：提出了一种用于采集冠状血管（11），特别是冠状静脉的三维图像的方法和设备。在心脏运动的相同阶段内采集二维X射线图像（13）。然后，基于这些二维图像生成三维中心线模型（15）。从中心线模型的二维投影到相应的投影平面中，可以导出投影平面中的血管的局部直径（w）。具有直径，可以生成血管系统的三维船体模型，并且可选地，可以导出关于血管运动的四维信息。

94. 发明申请

WO2008135946A2 CORONARY ARTERY SELECTIVE CALCIUM ASSIGNMENT USING LOW DOSE CALCIUM SCORING SCANS 审中-公开
标题翻译：冠状动脉选择性钙分配使用低剂量钙分析扫描
公开(公告)号：WO2008135946A2
公开(公告)日：2008-11-13
申请号：PCT/IB2008/051737
申请日：2008-05-05
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , GRASS, Michael , VON BERG, Jens
发明人： GRASS, Michael , VON BERG, Jens
IPC分类号： A61B6/03
CPC分类号： A61B6/504 , A61B6/481 , A61B6/503
摘要： It is described a method for coronary artery selective calcium assignment by computed tomography, wherein the method comprising the steps of performing a low x-ray dose cardiac calcium scoring scan, obtaining a data set of said cardiac calcium scoring scan, generating reconstructed images from the data set of said cardiac calcium scoring scan, analyzing the reconstructed images for segmented calcium deposits, deriving a data set of calcification from the analysis, wherein a cardiac model is adapted to the reconstructed image such that segmented calcium deposits can be assigned to specific areas of the heart. Further a device (100) for performing a method for coronary artery selective calcium assignment by computed tomography according to the inventive method is described, wherein the device (100) comprises a CT unit (10) for performing a low x-ray dose cardiac calcium scoring scan; an acquisition unit (20) for obtaining a data set of said cardiac calcium scoring scan; a generation unit (30) for generating reconstructed images from the data set of said cardiac calcium scoring scan; an analyzing unit (40) for analyzing the reconstructed images for segmented calcium deposits; a deriving unit (50) for deriving a data set of calcification from the analysis.
摘要翻译：描述了通过计算机断层摄影术进行冠状动脉选择性钙分配的方法，其中所述方法包括以下步骤：执行低X射线剂量心脏钙评分扫描，获得所述心脏钙评分扫描的数据集，从所述心脏钙评分扫描的数据集，分析分割钙沉积物的重建图像，从分析中导出钙化数据集，其中心脏模型适用于重建图像，使得分割的钙沉积物可被分配到心脏此外，描述了根据本发明的方法通过计算机断层摄影执行冠状动脉选择性钙分配方法的装置（100），其中所述装置（100）包括用于执行低x射线剂量心脏钙的CT单元（10）得分扫描; 获取单元（20），用于获取所述心脏钙评分扫描的数据集; 用于从所述心脏钙评分扫描的数据集中产生重建图像的生成单元（30）; 分析单元（40），用于分析用于分割的钙沉积物的重建图像; 用于从分析中导出钙化数据集的导出单元（50）。

95. 发明申请

WO2008026153A2 IMAGING SYSTEM 审中-公开
标题翻译：成像系统
公开(公告)号：WO2008026153A2
公开(公告)日：2008-03-06
申请号：PCT/IB2007/053442
申请日：2007-08-28
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , BONTUS, Claas , GRASS, Michael , KOEHLER, Thomas
发明人： BONTUS, Claas , GRASS, Michael , KOEHLER, Thomas
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/027
摘要： The present invention relates to an imaging system for imaging a field of interest, in particular to a computed tomography system. The imaging system comprises an irradiation unit (2) which moves relative to a field of interest along a first trajectory (501) and along a second trajectory (503). While the irradiation unit (2) moves along the first trajectory (501), first detection data are acquired and, while the irradiation unit (2) moves along the second trajectory (503), second detection data are acquired. An intermediate image of the field of interest is reconstructed from at least the second detection data, and virtual detection data are determined by forward projection through the intermediate image. Finally, an image of the field of interest is reconstructed from the first detection data and the virtual detection data.
摘要翻译：本发明涉及用于对感兴趣的领域，特别是计算机断层摄影系统进行成像的成像系统。成像系统包括沿着第一轨迹（501）并沿第二轨迹（503）相对于感兴趣的场移动的照射单元（2）。当照射单元（2）沿着第一轨迹（501）移动时，获取第一检测数据，并且当照射单元（2）沿着第二轨迹（503）移动时，获取第二检测数据。至少从第二检测数据重建感兴趣区域的中间图像，并且通过中间图像的向前投影确定虚拟检测数据。最后，从第一检测数据和虚拟检测数据重建感兴趣区域的图像。

96. 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。

97. 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。

98. 发明申请

WO2005124689A1 ARTIFACT REDUCTION 审中-公开
标题翻译：减少文艺
公开(公告)号：WO2005124689A1
公开(公告)日：2005-12-29
申请号：PCT/IB2005/051953
申请日：2005-06-14
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , MANZKE, Robert , GRASS, Michael , KOEHLER, Thomas
发明人： MANZKE, Robert , GRASS, Michael , KOEHLER, Thomas
IPC分类号： G06T11/00
CPC分类号： G06T11/005 , G06T2211/412
摘要： Minimizing the temporal width of the gating window during calculation of the gating function in cardiac CT may not result in best image quality with a maximum of signal-to-noise ratio and minimal artifacts. According to an exemplary embodiment of the present invention, the widths of the gating windows in cardiac CT are selected on the basis of a motion model describing the motion of the heart. According to an aspect of the present invention, the widths of the gating windows are determined by considering the duration of stationary cardiac phases. Thus, artifacts, such as motion artifacts or noise, are minimized.
摘要翻译：在计算心脏CT门控功能时，最小化选通窗口的时间宽度可能无法以最大的信噪比和最小的人为因素产生最佳图像质量。根据本发明的示例性实施例，基于描述心脏运动的运动模型来选择心脏CT中门控窗口的宽度。根据本发明的一个方面，门控窗口的宽度通过考虑静止心脏相位的持续时间来确定。因此，诸如运动假象或噪声之类的伪影被最小化。

99. 发明申请

WO2004066215A1 COMPUTED TOMOGRAPHY METHOD WITH COHERENT SCATTERED RAYS, AND COMPUTED TOMOGRAPH 审中-公开
标题翻译：计算机图像方法与计算机图像
公开(公告)号：WO2004066215A1
公开(公告)日：2004-08-05
申请号：PCT/IB2004/000110
申请日：2004-01-13
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： G06T11/00
CPC分类号： A61B6/483 , A61B6/027 , A61B6/032 , A61B6/4085 , A61B6/4291 , G06T11/005
摘要： The invention relates to a computed tomography method in which an examination zone is irradiated along a helix-like trajectory by a fan-like bundle of rays. In the examination zone, coherent scattered radiation is measured by a detector unit, where the spatial profile of the scattering intensity in the examination zone is reconstructed from these measured values. The reconstruction may be effected by means of a back-projection in a volume which is defined by two linearly independent vectors of the rotation plane and a wave vector transfer.
摘要翻译：本发明涉及一种计算机断层摄影方法，其中通过扇状束光沿着螺旋状轨迹照射检查区。在检查区中，通过检测器单元测量相干散射辐射，其中从这些测量值重建检查区中的散射强度的空间分布。重建可以通过由旋转平面的两个线性独立向量和波矢量传递限定的体积中的背投影来实现。

100. 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.

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