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1. 发明申请

WO2009122317A2 SPECTRAL DETECTOR CALIBRATION 审中-公开
标题翻译：光谱检测器校准
公开(公告)号：WO2009122317A2
公开(公告)日：2009-10-08
申请号：PCT/IB2009/051189
申请日：2009-03-20
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , LIVNE, Amir , WAINER, Naor , SCHLOMKA, Jens-Peter , ROESSL, Ewald , PROKSA, Roland
发明人： LIVNE, Amir , WAINER, Naor , SCHLOMKA, Jens-Peter , ROESSL, Ewald , PROKSA, Roland
IPC分类号： G01N23/02 , A61B6/03
CPC分类号： G01T7/005 , A61B6/032 , A61B6/4035 , A61B6/4042 , A61B6/4441 , A61B6/482 , A61B6/585 , G01N2223/3037 , G01T1/1647
摘要： A method includes detecting radiation that traverses a material having a known spectral characteristic with a radiation sensitive detector pixel that outputs a signal indicative of the detected radiation and determining a mapping between the output signal and the spectral characteristic. The method further includes determining an energy of a photon detected by the radiation sensitive detector pixel based on a corresponding output of the radiation sensitive detector pixel and the mapping.
摘要翻译：一种方法包括利用辐射敏感检测器像素检测穿过具有已知光谱特性的材料的辐射，所述辐射敏感检测器像素输出指示检测到的辐射的信号并确定输出信号和光谱特性之间的映射。该方法还包括基于辐射敏感检测器像素的对应输出和映射来确定由辐射敏感检测器像素检测到的光子的能量。

2. 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）。

3. 发明申请

WO2008155679A2 DIGITAL PULSE PROCESSING FOR MULTI-SPECTRAL PHOTON COUNTING READOUT CIRCUITS 审中-公开
标题翻译：用于多光子计数读数电路的数字脉冲处理
公开(公告)号：WO2008155679A2
公开(公告)日：2008-12-24
申请号：PCT/IB2008/052042
申请日：2008-05-23
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , PROKSA, Roland , SCHLOMKA, Jens-Peter , ROESSL, Ewald , LIRAN, Tuvia , MARKS, Aviv
发明人： PROKSA, Roland , SCHLOMKA, Jens-Peter , ROESSL, Ewald , LIRAN, Tuvia , MARKS, Aviv
IPC分类号： G01T1/17
CPC分类号： G01T1/171
摘要： An apparatus includes a local minimum identifier (408) that identifies a local minimum between overlapping pulses in a signal, wherein the pulses have amplitudes that are indicative of the energy of successively detected photons from a multi-energetic radiation beam by a radiation sensitive detector, and a pulse pile-up error corrector (232) that corrects, based on the local minimum, for a pulse pile-up energy-discrimination error when energy-discriminating the pulses using at least two thresholds corresponding to different energy levels. This technique may reduce spectral error when counting photons at a high count rate.
摘要翻译：一种装置包括识别信号中重叠脉冲之间的局部最小值的局部最小标识符（408），其中脉冲具有指示由辐射敏感检测器从多能辐射束连续检测到的光子的能量的幅度，以及脉冲堆积误差校正器（232），其基于局部最小值来校正针对对应于不同能级的至少两个阈值对脉冲进行能量鉴别的脉冲堆积能量鉴别误差。当以高计数率计数光子时，该技术可能降低光谱误差。

4. 发明申请

WO2010004460A1 K-EDGE IMAGING 审中-公开
标题翻译： K边形成像
公开(公告)号：WO2010004460A1
公开(公告)日：2010-01-14
申请号：PCT/IB2009/052670
申请日：2009-06-22
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , ROESSL, Ewald , PROKSA, Roland , SCHLOMKA, Jens-Peter
发明人： ROESSL, Ewald , PROKSA, Roland , SCHLOMKA, Jens-Peter
IPC分类号： A61B6/00
CPC分类号： G01N23/087 , A61B5/4869 , A61B6/032 , A61B6/4241 , A61B6/481 , A61B6/482
摘要： An imaging system including a radiation source (110) that emits poly-chromatic radiation that traverses an examination region and a detector (116) that detects radiation traversing the examination region and produces a signal indicative of the energy of a detected photon. The system further includes an energy discriminator (122) that energy resolves the signal based on a plurality of different energy thresholds, wherein at least two of the energy thresholds have values corresponding to at least two different K-edge energies of two different elements in a mixture disposed in the examination region. The system also includes a signal decomposer (132) that decomposes the energy-resolved signal into at least a multi K-edge component representing the at least two different K-edge energies. In one instance, a stoichiometric ratio of the two different elements in the contrast agent is known and substantially constant.
摘要翻译：一种成像系统，包括发射穿过检查区域的多色辐射的辐射源（110）和检测穿过检查区域的辐射的检测器（116），并产生指示检测到的光子的能量的信号。该系统还包括能量鉴别器（122），其能量基于多个不同的能量阈值来解决信号，其中至少两个能量阈值具有对应于两个不同元素的至少两个不同K边能量的值混合物置于检查区域。该系统还包括信号分解器（132），其将能量分辨信号分解成代表至少两个不同的K边缘能量的至少多个K边缘分量。在一种情况下，造影剂中两种不同元素的化学计量比是已知的并且基本上是恒定的。

5. 发明申请

WO2008149292A2 DETECTION DEVICE FOR DETECTING RADIATION 审中-公开
标题翻译：用于检测辐射的检测装置
公开(公告)号：WO2008149292A2
公开(公告)日：2008-12-11
申请号：PCT/IB2008/052170
申请日：2008-06-04
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , PROKSA, Roland , SCHLOMKA, Jens-Peter , RÖSSL, Ewald
发明人： PROKSA, Roland , SCHLOMKA, Jens-Peter , RÖSSL, Ewald
CPC分类号： G01T1/1648
摘要： The present invention relates to a detection device for detecting radiation emitted from a radiation source, wherein the detection device (6) comprises a detection surface (19) and lamellae (18) protruding from the detection surface (19), wherein the lamellae (18) comprise a first end portion (20) close to the detection surface (19) and a second end portion (21) remote from the detection surface (19) and wherein the first end portion (20) has a larger width than the second end portion (21). The invention relates further to a computed tomography apparatus comprising this detection device.
摘要翻译：本发明涉及一种用于检测从辐射源发射的辐射的检测装置，其中检测装置（6）包括从检测表面（19）突出的检测表面（19）和薄片（18），其中薄片（18））包括靠近检测表面（19）的第一端部（20）和远离检测表面（19）的第二端部（21），并且其中第一端部（20）的宽度大于第二端部分（21）。本发明进一步涉及包括该检测装置的计算机断层摄影装置。

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

WO2008018021A2 SYSTEM AND METHOD FOR ACQUIRING IMAGE DATA 审中-公开
标题翻译：用于获取图像数据的系统和方法
公开(公告)号：WO2008018021A2
公开(公告)日：2008-02-14
申请号：PCT/IB2007/053111
申请日：2007-08-07
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V., , SCHLOMKA, Jens-Peter , THRAN, Axel
发明人： SCHLOMKA, Jens-Peter , THRAN, Axel
CPC分类号： G01V5/0025 , G01T1/1644 , G01V5/005
摘要： According to an exemplary embodiment an imaging system (100) for examining an object under examination comprises a scanning unit, wherein the scanning unit comprises a radiation source (106, 108), and a detection unit (107, 109), wherein the scanning unit is adapted to emit a radiation beam (123), which radiation beam follows a linear movement of the object under examination such that a predetermined region of the object under examination is scanned while the object under examination moves.
摘要翻译：根据示例性实施例，用于检查被检查对象的成像系统（100）包括扫描单元，其中扫描单元包括辐射源（106,108）和检测单元（107 ，109），其中所述扫描单元适于发射辐射束（123），所述辐射束跟随被检查对象的线性运动，使得在被检查对象移动的同时扫描被检查对象的预定区域。

8. 发明申请

WO2004044848A1 COMPUTED TOMOGRAPHY AND METHOD WITH THREE-DIMENSIONAL BACKPROJECTION 审中-公开
标题翻译：计算机图像和三维反射法的方法
公开(公告)号：WO2004044848A1
公开(公告)日：2004-05-27
申请号：PCT/IB2003/004749
申请日：2003-10-24
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , SCHLOMKA, Jens-Peter , GRAß, Michael
发明人： SCHLOMKA, Jens-Peter , GRAß, Michael
IPC分类号： G06T11/00
CPC分类号： A61B6/032 , A61B6/4085 , A61B6/4291 , G06T11/006 , G06T2211/421
摘要： The invention relates to a computed tomography method in which an examination zone is irradiated along a circular trajectory by a fan-shaped radiation beam. Radiation coherently scattered in the examination zone is measured by a detector unit, the variation in space of the scatter intensity in the examination zone being reconstructed from said measuring values. Reconstruction is performed by back projection in a volume which is defined by two linearly independent vectors of the rotational 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，其中通过扇形辐射束沿着圆形轨迹照射检查区。通过检测器单元测量在检查区域中相干散射的辐射，从所述测量值重建检查区域中的散射强度的空间变化。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反投影执行重建。

9. 发明申请

WO2005120354A1 COHERENT-SCATTER COMPUTER TOMOGRAPH 审中-公开
标题翻译：相干散热器计算机图形
公开(公告)号：WO2005120354A1
公开(公告)日：2005-12-22
申请号：PCT/IB2005/051786
申请日：2005-06-01
申请人： PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , SCHLOMKA, Jens-Peter
发明人： SCHLOMKA, Jens-Peter
IPC分类号： A61B6/02
CPC分类号： A61B6/032 , A61B6/06 , A61B6/4291 , A61B6/483 , G01N23/201
摘要： Conventional CSCT may require a complex reconstruction involving a large number of calculations. According to an exemplary embodiment of the present invention, additional collimators are used in combination with energy revolving detectors, which may allow that a CSCT image may be reconstructed by a simple superposition of images obtained from different viewing angles in a direct tomography data acquisition scheme. Advantageously, a reconstruction may be avoided. Advantageously, this may allow for an improved image quality while reducing an amount of calculations required for generating the output image.
摘要翻译：常规CSCT可能需要涉及大量计算的复杂重构。根据本发明的示例性实施例，附加的准直器与能量循环检测器组合使用，这可以允许通过在直接层析成像数据采集方案中从不同视角获得的图像的简单叠加来重构CSCT图像。有利地，可以避免重建。有利地，这可以允许改善图像质量，同时减少生成输出图像所需的计算量。

10. 发明申请

WO2013030698A1 DIFFERENTIAL PHASE CONTRAST IMAGING WITH ENERGY SENSITIVE DETECTION 审中-公开
标题翻译：具有能量敏感检测的差分相位对比成像
公开(公告)号：WO2013030698A1
公开(公告)日：2013-03-07
申请号：PCT/IB2012/054032
申请日：2012-08-08
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GmbH , KOEHLER, Thomas , SCHLOMKA, Jens-Peter
发明人： KOEHLER, Thomas , SCHLOMKA, Jens-Peter
IPC分类号： G06T5/50 , G06T11/00
CPC分类号： G06T7/0014 , G01N23/046 , G06T5/50 , G06T11/005 , G06T2211/408
摘要： For correcting differential phase image data 52, differential phase image data 52 acquired with radiation at different energy levels is received, wherein the differential phase image data 52 comprises pixels 60, each pixel 60 having a phase gradient value 62a, 62b, 62c for each energy level. After that an energy dependent behavior of phase gradient values 62a, 62b, 62c of a pixel 60 is determined and a corrected phase gradient value 68 for the pixel 60 is determined from the phase gradient values 62a, 62b, 62c of the pixel 60 and a model for the energy dependence of the phase gradient values 62a, 62b, 62c.
摘要翻译：为了校正微分相位图像数据52，接收以不同能量级别的辐射获取的差分相位图像数据52，其中差分相位图像数据52包括像素60，每个像素60具有每个能量的相位梯度值62a，62b，62c 水平。之后，确定像素60的相位梯度值62a，62b，62c的与能量相关的行为，并且根据像素60的相位梯度值62a，62b，62c确定像素60的校正相位梯度值68和模型，用于相位梯度值62a，62b，62c的能量依赖性。

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