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1. 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。

2. 发明申请

WO2005034756A1 ASYMMETRIC CSCT 审中-公开
标题翻译：不对称CSCT
公开(公告)号：WO2005034756A1
公开(公告)日：2005-04-21
申请号：PCT/IB2004/051970
申请日：2004-10-05
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N. V. , GRASS, Michael , KOEHLER, Thomas
发明人： GRASS, Michael , KOEHLER, Thomas
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/027 , G01N23/046 , G01N2223/419
摘要： According to the present invention, an asymmetric acquisition system is used, where the radiation detector is arranged asymmetrically with respect to a fan beam plane of the scanner. Advantageously, this may allow to increase a scatter angle range for a given detector height in the direction of the rotational axis. Furthermore, this may allow for an optimal data flow for a combined volume absorption distribution reconstruction and subsequent coherent scatter CT reconstruction.
摘要翻译：根据本发明，使用非对称采集系统，其中辐射检测器相对于扫描仪的扇形光束平面不对称地布置。有利地，这可以允许在旋转轴线的方向上增加给定检测器高度的散射角范围。此外，这可以允许用于组合体积吸收分布重建和随后的相干散射CT重建的最佳数据流。

3. 发明申请

WO2005082253A1 DRUG APPLICATION DURING A CT SCAN 审中-公开
标题翻译： CT扫描期间的药物应用
公开(公告)号：WO2005082253A1
公开(公告)日：2005-09-09
申请号：PCT/IB2005/050576
申请日：2005-02-15
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N. V. , KOEHLER, Thomas , GRASS, Michael
发明人： KOEHLER, Thomas , GRASS, Michael
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/503 , A61B6/541 , A61B8/481
摘要： Controlled local application of drugs to a certain part of a body of a patient may be of major importance during a cardiac CT scan. By transporting the drugs in containers which prevent an application of the drugs and by rupturing only those containers which are located in the vicinity of the part of the body of a patient to which the drugs have to be applied, a local application of the drugs may be performed. According to an exemplary embodiment of the present invention, the rupturing and therefore the application of the drugs may be triggered by a monitoring algorithm which evaluates changes in the heart beat rate of the patient. Advantageously, the method allows for a local delivery of the drugs on a fine time scale and therefore for a fast control of the heart beat rate during the CT scan.
摘要翻译：在心脏CT扫描期间，将药物局部应用于患者身体的某一部分可能是非常重要的。通过将药物运送到容器中，以防止药物的使用，并且仅破坏那些位于药物必须施用的患者身体部分附近的容器，则药物的局部应用可以被执行。根据本发明的示例性实施例，药物的破裂和因此的应用可以由评估患者心跳速率变化的监测算法来触发。有利地，该方法允许在精细时间范围内局部递送药物，因此可以在CT扫描期间快速控制心跳率。

4. 发明申请

WO2007072286A2 METHOD FOR MOVEMENT COMPENSATION OF IMAGE DATA 审中-公开
标题翻译：运动补偿图像数据的方法
公开(公告)号：WO2007072286A2
公开(公告)日：2007-06-28
申请号：PCT/IB2006/054727
申请日：2006-12-11
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N. V. , GRASS, Michael , KOEHLER, Thomas
发明人： GRASS, Michael , KOEHLER, Thomas
IPC分类号： G06T11/00
CPC分类号： A61B6/032 , A61B6/541 , G06T11/005 , G06T2211/412
摘要： According to an exemplary embodiment a method for movement compensation of image data of an object of interest comprises receiving projection data, receiving motion vector field data, and dividing the motion vector field data into a number of layers of motion vector field data. Furthermore, the method comprises generating motion compensated projection data by projecting at least one of the number of layered motion vector field data onto the projection data and applying a two dimensional motion compensation on the projection, and generating image data of at least one voxel by back-projecting the movement compensated projection data.
摘要翻译：根据示例性实施例，一种用于感兴趣对象的图像数据的运动补偿的方法包括：接收投影数据;接收运动矢量场数据;以及将运动矢量场数据分成多个层运动矢量场数据。此外，该方法包括通过将多个分层运动矢量场数据中的至少一个投影到投影数据上并且对投影应用二维运动补偿并且通过后部生成至少一个体素的图像数据来生成运动补偿投影数据 - 投影移动补偿投影数据。

5. 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。

6. 发明申请

WO2010146498A1 TILTED GRATINGS AND METHOD FOR PRODUCTION OF TILTED GRATINGS 审中-公开
标题翻译：倾斜砂浆和生产倾斜砂浆的方法
公开(公告)号：WO2010146498A1
公开(公告)日：2010-12-23
申请号：PCT/IB2010/052555
申请日：2010-06-09
申请人： KONINKLIJKE PHILIPS ELECTRONICS N. V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , VOGTMEIER, Gereon , ENGEL, Klaus, J. , KOEHLER, Thomas , ROESSL, Ewald , SCHLOMKA, Jens-Peter
发明人： VOGTMEIER, Gereon , ENGEL, Klaus, J. , KOEHLER, Thomas , ROESSL, Ewald , SCHLOMKA, Jens-Peter
IPC分类号： G02B5/18 , G21K1/06
CPC分类号： G02B5/1857 , A61B6/484 , G21K2201/06 , G21K2207/005
摘要： The present invention relates to phase-contrast imaging which visualizes the phase information of coherent radiation passing a scanned object. Focused gratings are used which reduce the creation of trapezoid profile in a projection with a particular angle to the optical axis. A laser supported method is used in combination with a dedicating etching process for creating such focused grating structures.
摘要翻译：本发明涉及相位成像，其可视化通过扫描对象的相干辐射的相位信息。使用聚焦光栅，其减小了与光轴具有特定角度的投影中的梯形轮廓的产生。激光支持的方法与用于产生这种聚焦光栅结构的专用蚀刻工艺结合使用。

7. 发明申请

WO2010109390A1 ACHROMATIC PHASE-CONTRAST IMAGING 审中-公开
标题翻译：高级相对成像
公开(公告)号：WO2010109390A1
公开(公告)日：2010-09-30
申请号：PCT/IB2010/051198
申请日：2010-03-19
申请人： KONINKLIJKE PHILIPS ELECTRONICS N. V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , ROESSL, Ewald , KOEHLER, Thomas
发明人： ROESSL, Ewald , KOEHLER, Thomas
IPC分类号： G21K1/06 , G02B27/52
CPC分类号： G21K1/06 , G02B27/52 , G21K2207/005
摘要： An achromatic phase-contrast imaging apparatus for examining an object of interest is provided which comprises two different phase gratings which have different pitches. Thus, the imaging apparatus yields phase-contrast information for two different energies. Thus, phase- information over a wider energy band can be used.
摘要翻译：提供一种用于检查感兴趣对象的消色差相位对比成像装置，其包括具有不同间距的两个不同的相位光栅。因此，成像装置产生两种不同能量的相位对比度信息。因此，可以使用较宽能带上的相位信息。

8. 发明申请

WO2008084352A1 APPARATUS, METHOD AND COMPUTER PROGRAM FOR PRODUCING A CORRECTED IMAGE OF A REGION OF INTEREST FROM ACQUIRED PROJECTION DATA 审中-公开
标题翻译：用于生成来自获取的投影数据的利益区域的校正图像的装置，方法和计算机程序
公开(公告)号：WO2008084352A1
公开(公告)日：2008-07-17
申请号：PCT/IB2007/055222
申请日：2007-12-19
申请人： KONINKLIJKE PHILIPS ELECTRONICS N. V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KOEHLER, Thomas
发明人： KOEHLER, Thomas
IPC分类号： G06T11/00
CPC分类号： G06T11/005 , A61B6/5258
摘要： PH006754 30 ABSTRACT: The present invention relates to an apparatus for producing a corrected image of a region of interest from acquired projection data (60), wherein an uncorrected intermediate image (74) is reconstructed. The uncorrected intermediate image (74) is corrected and image elements of the corrected intermediate image (85) are classified. Image elements of the corrected 5 intermediate image (85) that are of a high density or low density class are replaced by image elements having values depending on values of the low density class to generate a synthetic image (90). Synthetic projection data (96) are generated by forward projecting the synthetic image (90), and acquired projection data contributing to the high density class are replaced by corresponding synthetic projection data (96) to generate corrected projection data (112). 10 The corrected projection data (112) are used for reconstructing the corrected image.
摘要翻译： PH006754 30摘要：本发明涉及一种用于从所获取的投影数据（60）产生感兴趣区域的校正图像的装置，其中重建未校正的中间图像（74）。对未校正的中间图像（74）进行校正，并校正中间图像（85）的图像元素。具有高密度或低密度等级的经校正的5中间图像（85）的图像元素由具有取决于低密度等级的值的值的图像元素代替以产生合成图像（90）。合成投影数据（96）通过前向投影合成图像（90）产生，并且由相应的合成投影数据（96）代替有助于高密度等级的获取的投影数据以产生校正投影数据（112）。校正投影数据（112）用于重建校正图像。

9. 发明申请

WO2006056914A3 COMPUTER TOMOGRAPHY METHOD AND COMPUTER TOMOGRAPH 审中-公开
公开(公告)号：WO2006056914A3
公开(公告)日：2006-06-01
申请号：PCT/IB2005/053796
申请日：2005-11-17
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N. V. , KOEHLER, Thomas
发明人： KOEHLER, Thomas
IPC分类号： A61B6/00
摘要： The invention describes a computer tomography method, in which a provided marker is reconstructed in order to determine the image resolution during the image reconstruction. The invention furthermore discloses a computer tomograph comprising a patient table for supporting a patient in order to expose said patient to X-ray radiation, wherein at least one marker for determining the image resolution during the image reconstruction is arranged on the patient table.

10. 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）。

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