专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2007082126A3 METHOD OF CONSTRUCTING TIME- IN-FLIGHT PET IMAGES 审中-公开
标题翻译：构建飞行时间PET图像的方法
公开(公告)号：WO2007082126A3
公开(公告)日：2007-09-07
申请号：PCT/US2007060078
申请日：2007-01-04
申请人： KONINKL PHILIPS ELECTRONICS NV , COOKE STEVEN E , WELLNITZ DONALD R , LAURENCE THOMAS L
发明人： COOKE STEVEN E , WELLNITZ DONALD R , LAURENCE THOMAS L
IPC分类号： G01T1/29
CPC分类号： G01T1/2985 , A61B6/037
摘要： A method of reconstructing time-of-flight (TOF) images includes obtaining a profile of a subject to be imaged in an examination region (14) of an imaging system (10), Events associated with radiation emitted from the subject are detected and converted to electronic data. Electronic data attributable to radiation events located outside the profile are removed and images are reconstructed from the remaining electronic data.
摘要翻译：重建飞行时间（TOF）图像的方法包括获得要成像的对象的轮廓在成像系统（10）的检查区域（14）中，检测和转换与从对象发射的辐射有关的事件电子数据。去除归因于轮廓外的辐射事件的电子数据，并从剩余的电子数据重建图像。

2. 发明申请

WO2007046012A2 PMT GAIN AND ENERGY CALIBRATIONS USING LUTETIUM BACKGROUND RADIATION 审中-公开
标题翻译： PMT增益和能量校准使用LUTETIUM背景辐射
公开(公告)号：WO2007046012A2
公开(公告)日：2007-04-26
申请号：PCT/IB2006/053314
申请日：2006-09-15
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , COOKE, Steven , LAURENCE, Thomas
发明人： COOKE, Steven , LAURENCE, Thomas
CPC分类号： G01T1/2985 , A61B6/037 , G01T1/1644 , G01T1/202
摘要： A scintillator (18) includes radioactive elements which emit radiation of a characteristic energy, such as lutetium 176 , which emits 202 keV and 307 keV γ-rays. The scintillators have light output levels that vary and photomultiplier tubes that respond to the light scintillations tend to drift. When a scanner (10) is not generating diagnostic images, the photomultiplier tubes detect scintillations from the lutetium176 radiation. A self- calibration processor (40) adjusts the gain for each photomultiplier tube such that its output peak corresponds to 202 keV or 307 keV and adjusts a scaling factor for PMT outputs corresponding to each scintillator such that the output peaks have a common amplitude.
摘要翻译：闪烁体（18）包括发射特征能量的辐射的放射性元素，例如发射202keV和307keV？射线的镥176。闪烁体具有变化的光输出水平，并且响应于光闪烁的光电倍增管倾向于漂移。当扫描器（10）不产生诊断图像时，光电倍增管检测来自镥176辐射的闪烁。自校准处理器（40）调整每个光电倍增管的增益，使得其输出峰值对应于202keV或307keV，并且调整对应于每个闪烁体的PMT输出的缩放因子，使得输出峰值具有共同的幅度。

3. 发明申请

WO2011158134A3 AUTOMATED CRYSTAL IDENTIFICATION ACHIEVED VIA MODIFIABLE TEMPLATES 审中-公开
标题翻译：通过可修改模板实现的自动化晶体鉴定
公开(公告)号：WO2011158134A3
公开(公告)日：2012-04-12
申请号：PCT/IB2011051837
申请日：2011-04-27
申请人： KONINKL PHILIPS ELECTRONICS NV , LAURENCE THOMAS , WANG SHARON X , GRIESMER JEROME J
发明人： LAURENCE THOMAS , WANG SHARON X , GRIESMER JEROME J
IPC分类号： G01T1/164
CPC分类号： G06K9/78 , G01T1/1647
摘要： A nuclear imaging system (10) includes a crystal identification system (40) which receives a flood image (30) which includes a plurality of peaks, each peak responsive to radiation detected by a corresponding scintillator crystal. A crystal identification processor (42) partitions the flood image (30) into a plurality of regions (56), each region being masked to correspond to one of an array of nuclear detectors. A model image (62) is generated in which the at least one Gaussian models represents the identified peaks. Misidentified peaks in the model image (62) in which locations of the peaks in the flood image (30) differ from the corresponding scintillator crystal are determined and the locations of the misidentified peaks in the flood image (30) are corrected. A calibration processor (43) corrects geometric distortions in acquired projection data according to the corrected peaks.
摘要翻译：核成像系统（10）包括晶体识别系统（40），其接收包括多个峰值的泛洪图像（30），每个峰值响应于由相应的闪烁体晶体检测的辐射。晶体识别处理器（42）将洪水图像（30）分割成多个区域（56），每个区域被掩蔽以对应于核探测器阵列之一。产生模型图像（62），其中至少一个高斯模型表示所识别的峰值。确定在洪水图像（30）中的峰的位置与相应的闪烁体晶体不同的模型图像（62）中的误识别的峰，并校正洪水图像（30）中的错误识别的峰的位置。校准处理器（43）根据校正的峰值校正获取的投影数据中的几何失真。

4. 发明申请

WO2011158134A2 AUTOMATED CRYSTAL IDENTIFICATION ACHIEVED VIA MODIFIABLE TEMPLATES 审中-公开
标题翻译：通过可修改模板实现的自动化晶体鉴定
公开(公告)号：WO2011158134A2
公开(公告)日：2011-12-22
申请号：PCT/IB2011/051837
申请日：2011-04-27
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , LAURENCE, Thomas , WANG, Sharon, X. , GRIESMER, Jerome, J.
发明人： LAURENCE, Thomas , WANG, Sharon, X. , GRIESMER, Jerome, J.
IPC分类号： G01T1/164
CPC分类号： G06K9/78 , G01T1/1647
摘要： A nuclear imaging system (10) includes a crystal identification system (40) which receives a flood image (30) which includes a plurality of peaks, each peak responsive to radiation detected by a corresponding scintillator crystal. A crystal identification processor (42) partitions the flood image (30) into a plurality of regions (56), each region being masked to correspond to one of an array of nuclear detectors. A model image (62) is generated in which the at least one Gaussian models represents the identified peaks. Misidentified peaks in the model image (62) in which locations of the peaks in the flood image (30) differ from the corresponding scintillator crystal are determined and the locations of the misidentified peaks in the flood image (30) are corrected. A calibration processor (43) corrects geometric distortions in acquired projection data according to the corrected peaks.
摘要翻译：核成像系统（10）包括晶体识别系统（40），其接收包括多个峰值的泛洪图像（30），每个峰值响应于由相应的闪烁体晶体检测的辐射。晶体识别处理器（42）将洪水图像（30）分割成多个区域（56），每个区域被掩蔽以对应于核探测器阵列之一。产生模型图像（62），其中至少一个高斯模型表示所识别的峰值。确定在洪水图像（30）中的峰的位置与相应的闪烁体晶体不同的模型图像（62）中的误识别的峰，并校正洪水图像（30）中的错误识别的峰的位置。校准处理器（43）根据校正的峰值校正获取的投影数据中的几何失真。

5. 发明申请

WO2007046012A3 PMT GAIN AND ENERGY CALIBRATIONS USING LUTETIUM BACKGROUND RADIATION 审中-公开
标题翻译： PMT增益和能量校准采用背景辐射
公开(公告)号：WO2007046012A3
公开(公告)日：2007-10-25
申请号：PCT/IB2006053314
申请日：2006-09-15
申请人： KONINKL PHILIPS ELECTRONICS NV , COOKE STEVEN , LAURENCE THOMAS
发明人： COOKE STEVEN , LAURENCE THOMAS
IPC分类号： G01T1/29 , G01T1/164 , G01T1/202
CPC分类号： G01T1/2985 , A61B6/037 , G01T1/1644 , G01T1/202
摘要： A scintillator (18) includes radioactive elements which emit radiation of a characteristic energy, such as lutetium 176 , which emits 202 keV and 307 keV ?-rays. The scintillators have light output levels that vary and photomultiplier tubes that respond to the light scintillations tend to drift. When a scanner (10) is not generating diagnostic images, the photomultiplier tubes detect scintillations from the lutetium176 radiation. A self- calibration processor (40) adjusts the gain for each photomultiplier tube such that its output peak corresponds to 202 keV or 307 keV and adjusts a scaling factor for PMT outputs corresponding to each scintillator such that the output peaks have a common amplitude.
摘要翻译：闪烁体（18）包括发射特征能量辐射的放射性元素，例如发射202keV和307keVγ射线的l。闪烁体具有不同的光输出水平，并且响应于闪烁闪烁的光电倍增管倾向于漂移。当扫描仪（10）不产生诊断图像时，光电倍增管检测来自l176辐射的闪烁。自校准处理器（40）调整每个光电倍增管的增益，使得其输出峰值对应于202keV或307keV，并调整对应于每个闪烁体的PMT输出的缩放因子，使得输出峰值具有共同的幅度。

6. 发明申请

WO2007082126A2 RANDOMS REDUCTION VIA TOF FOV 审中-公开
标题翻译：通过TOF FOV进行减速
公开(公告)号：WO2007082126A2
公开(公告)日：2007-07-19
申请号：PCT/US2007/060078
申请日：2007-01-04
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , COOKE, Steven, E. , WELLNITZ, Donald, R. , LAURENCE, Thomas, L.
发明人： COOKE, Steven, E. , WELLNITZ, Donald, R. , LAURENCE, Thomas, L.
IPC分类号： G01T1/29
CPC分类号： G01T1/2985 , A61B6/037
摘要： A method of reconstructing time-of-flight (TOF) images includes obtaining a profile of a subject to be imaged in an examination region (14) of an imaging system (10), Events associated with radiation emitted from the subject are detected and converted to electronic data. Electronic data attributable to radiation events located outside the profile are removed and images are reconstructed from the remaining electronic data.
摘要翻译：重建飞行时间（TOF）图像的方法包括获得要成像的对象的轮廓在成像系统（10）的检查区域（14）中，检测和转换与从对象发射的辐射有关的事件到电子数据。排除位于轮廓外部的辐射事件的电子数据，并从剩余的电子数据中重建图像。

7. 发明申请

WO2012069968A3 PET DETECTOR MODULES UTILIZING OVERLAPPED LIGHT GUIDES 审中-公开
标题翻译： PET探测器模块利用重叠的光导
公开(公告)号：WO2012069968A3
公开(公告)日：2012-08-02
申请号：PCT/IB2011055171
申请日：2011-11-18
申请人： KONINKL PHILIPS ELECTRONICS NV , LAURENCE THOMAS LEROY , LIU JINLING , COOKE STEVEN E , PLUMMER STEVEN JOHN
发明人： LAURENCE THOMAS LEROY , LIU JINLING , COOKE STEVEN E , PLUMMER STEVEN JOHN
IPC分类号： G01T1/164 , G01T1/20
CPC分类号： G01T1/164 , G01T1/1644 , G01T1/20 , G02B6/10 , Y10T29/49826
摘要： When constructing a nuclear detector module in a gantry, a plurality of overlapping light guide modules (10) are mounted to the gantry in a spaced-apart fashion, and a plurality of underlapping light guide modules (12) are mounted in between each pair of overlapping light guide modules (10). Each of the underlapping modules and the overlapping modules includes a scintillation crystal array (16) on an interior surface thereof, and a plurality of PMTs on an exterior surface thereof. Overlapping modules (10) have overlapping structures (22) that interface with underlapping structures (18) on the underlapping modules (12) and thereby eliminate a seam directly beneath PMTs that overlap the crystal arrays of both an overlapping module and an underlapping module. Optical grease is used to form a resilient grease coupling and reduce light scatter between the underlapping and overlapping modules.
摘要翻译：当在机架中构造核探测器模块时，多个重叠的光导模块（10）以间隔开的方式安装到机架，并且多个重叠的光导模块（12）安装在每对重叠的光导模块（10）。每个下层模块和重叠模块包括在其内表面上的闪烁晶体阵列（16）以及在其外表面上的多个PMT。重叠模块（10）具有与重叠模块（12）上的重叠结构（18）接合的重叠结构（22），并由此消除直接位于重叠模块和重叠模块两者的晶体阵列重叠的PMT之下的接缝。光学油脂用于形成弹性润滑脂耦合，并减少底部和重叠模块之间的光散射。

8. 发明申请

WO2008011436A2 METHOD AND SYSTEM FOR IMPROVED TOF PET RECONSTRUCTION 审中-公开
标题翻译：用于改进TOF PET重建的方法和系统
公开(公告)号：WO2008011436A2
公开(公告)日：2008-01-24
申请号：PCT/US2007073730
申请日：2007-07-18
申请人： KONINKL PHILIPS ELECTRONICS NV , LAURENCE THOMAS , GRIESMER JEROME J , KOLTHAMMER JEFFREY A , THON ANDREAS , BRINKS RALPH , DEGENHARDT CARSTEN
发明人： LAURENCE THOMAS , GRIESMER JEROME J , KOLTHAMMER JEFFREY A , THON ANDREAS , BRINKS RALPH , DEGENHARDT CARSTEN
IPC分类号： G01T1/29
CPC分类号： G01T1/2985
摘要： A time of flight positron emission tomography apparatus (100) includes a detector (106), a data acquisition system (120), a coincidence system (122) and a reconstructor (129). Various elements of an imaging chain influence the temporal resolution of the system (100) so that positron data collected along different lines of response is characterized by different temporal resolutions. The different temporal resolutions are used to estimate the positions of detected events along their respective lines of response.
摘要翻译：飞行时间正电子发射断层摄影装置（100）包括检测器（106），数据采集系统（120），重合系统（122）和重构器（129）。成像链的各种要素影响系统（100）的时间分辨率，以便沿着不同响应线收集的正电子数据以不同的时间分辨率为特征。使用不同的时间分辨率来估计沿着它们各自的响应线的检测到的事件的位置。

9. 发明申请

WO2006064393A2 PIXELATED DETECTORS WITH DEPTH OF INTERACTION SENSITIVITY 审中-公开
标题翻译：具有相互敏感性深度的像素检测器
公开(公告)号：WO2006064393A2
公开(公告)日：2006-06-22
申请号：PCT/IB2005/054054
申请日：2005-12-05
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , LAURENCE, Thomas, L. , COOKE, Steven, E.
发明人： LAURENCE, Thomas, L. , COOKE, Steven, E.
CPC分类号： G01T1/202 , A61B6/037 , G01T1/1644 , G01T1/2002
摘要： A radiation detector (20, 20') includes scintillator pixels (30) that each have a radiation-receiving end, a light-output end, and reflective sides extending therebetween. The reflective sides have a reflection characteristic (40, 40', 42, 44) varying between the radiation-receiving end and the light-output end such that a lateral spread of light emanating from the light-output ends of the scintillator pixels responsive to a scintillation event generated in one of the scintillator pixels depends upon a depth of the scintillation event in the scintillator pixel. A plurality of light detectors (46) optically communicate with the light-output ends of the scintillator pixels to receive light produced by scintillation events.
摘要翻译：辐射检测器（20,20'）包括闪烁体像素（30），每个闪烁体像素具有辐射接收端，光输出端和在它们之间延伸的反射面。反射侧具有在辐射接收端和光输出端之间变化的反射特性（40,40'，42,44），使得从闪烁体像素的光输出端发出的光的横向扩展响应于在闪烁体像素之一中产生的闪烁事件取决于闪烁体像素中的闪烁事件的深度。多个光检测器（46）与闪烁体像素的光输出端光学地通信以接收由闪烁事件产生的光。

10. 发明申请

WO2012069960A3 PET CALIBRATIONS WITH VARYING COINCIDENCE WINDOWS 审中-公开
标题翻译： PET变化窗口的校准
公开(公告)号：WO2012069960A3
公开(公告)日：2012-11-01
申请号：PCT/IB2011055097
申请日：2011-11-15
申请人： KONINKL PHILIPS ELECTRONICS NV , LAURENCE THOMAS LEROY , KOLTHAMMER JEFFREY ALLAN
发明人： LAURENCE THOMAS LEROY , KOLTHAMMER JEFFREY ALLAN
IPC分类号： G01T1/29 , G01T7/00
CPC分类号： G01T1/164 , A61B6/037 , A61B6/583 , G01T1/1648 , G01T1/2964 , G01T1/2985 , G01T7/00
摘要： When calibrating a positron emission tomography (PET) scanner, a radioactive calibration phantom is scanned over a period of several half lives to acquire a plurality of frames of scan data. Interlaced timing windows are employed to facilitate acquiring coincidence data for a plurality of coincidence timing windows and energy windows during a single calibration scan. Coincident events are binned according to each of a plurality of selected coincidence windows, and the PET scanner is calibrated for each of the plurality of coincidence timing windows using data acquired from the single calibration scan.
摘要翻译：当校准正电子发射断层摄影（PET）扫描仪时，放射性校准模型在几个半衰期内被扫描以获取多个扫描数据帧。使用隔行时间窗口来促进在单次校准扫描期间获取多个符合时间窗和能量窗的符合数据。根据多个选择的重合窗口中的每一个重合窗口对重合事件进行分箱，并且使用从单次校准扫描获取的数据针对多个重合时间窗口中的每一个校准PET扫描仪。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式