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1. 发明授权

US07606347B2 Photon counting x-ray detector with overrange logic control 有权
标题翻译：光子计数x射线探测器与超量程逻辑控制
公开(公告)号：US07606347B2
公开(公告)日：2009-10-20
申请号：US11744292
申请日：2007-05-04
申请人： John Eric Tkaczyk , Jonathan D. Short , James Wilson Rose , Xiaoye Wu , Samit Kumar Basu
发明人： John Eric Tkaczyk , Jonathan D. Short , James Wilson Rose , Xiaoye Wu , Samit Kumar Basu
IPC分类号： A61B6/03
CPC分类号： A61B6/5205 , A61B6/032 , A61B6/4291 , G01T1/2018 , G01T1/242 , G01T1/243 , G01T1/249
摘要： A CT detector includes a first detector configured to convert radiographic energy to electrical signals representative of energy sensitive radiographic data and a second detector configured to convert radiographic energy to electrical signals representative of energy sensitive radiographic data and positioned to receive x-rays that pass through the first detector. A logic controller is electrically connected to the first detector and the second detector and is configured to receive a logic output signal from the second detector indicative of an amount of a saturation level of the first detector, compare the logic output signal to a threshold value, and output, based on the comparison, electrical signals from the first detector, the second detector, or a combination thereof to an image chain.
摘要翻译： CT检测器包括：第一检测器，其被配置为将射线照相能量转换成表示能量敏感射线照相数据的电信号;以及第二检测器，被配置为将放射线照相能量转换成表示能量敏感射线照相数据的电信号，并被定位成接收穿过第一检测器逻辑控制器电连接到第一检测器和第二检测器，并且被配置为从第二检测器接收指示第一检测器的饱和电平的量的逻辑输出信号，将逻辑输出信号与阈值进行比较，并且基于比较将来自第一检测器，第二检测器或其组合的电信号输出到图像链。

2. 发明申请

US20110243413A1 METHOD AND SYSTEM FOR IMAGE DATA ACQUISITION 有权
标题翻译：用于图像数据采集的方法和系统
公开(公告)号：US20110243413A1
公开(公告)日：2011-10-06
申请号：US12750050
申请日：2010-03-30
申请人： John Eric Tkaczyk , David Allen Langan , Samit Kumar Basu , Xiaoye Wu , Bruno Kristiaan Bernard De Man , Jeffrey Seymour Gordon
发明人： John Eric Tkaczyk , David Allen Langan , Samit Kumar Basu , Xiaoye Wu , Bruno Kristiaan Bernard De Man , Jeffrey Seymour Gordon
IPC分类号： G06K9/00 , G01N23/04 , H05G1/60
CPC分类号： A61B6/4035 , A61B6/032 , A61B6/405 , A61B6/4241 , A61B6/482 , A61B6/488 , A61B6/542
摘要： A technique for acquiring desired image data in an imaging system comprising at least one radiation source and a detector is described. Initially, preliminary image data corresponding to an object may be acquired. Further, at least one parameter associated with the radiation source and corresponding to a particular view angle of the radiation source may be determined based on the preliminary image data and a priori information. Similarly, at least one parameter associated with the detector and corresponding to the particular view angle may be determined based on a priori information and the preliminary image data. Efficient operating modes of the radiation source and the detector corresponding to the particular view angle may be selected based on the determined parameters to achieve a desired system performance. Subsequently, the final image data may be acquired using the selected operating modes of the radiation source and the detector.
摘要翻译：描述了在包括至少一个辐射源和检测器的成像系统中获取所需图像数据的技术。首先，可以获取与对象相对应的初步图像数据。此外，可以基于初步图像数据和先验信息来确定与辐射源相关联并且对应于辐射源的特定视角的至少一个参数。类似地，可以基于先验信息和初步图像数据来确定与检测器相关联并且对应于特定视角的至少一个参数。可以基于确定的参数来选择对应于特定视角的辐射源和检测器的有效操作模式以实现期望的系统性能。随后，可以使用所选择的辐射源和检测器的操作模式来获取最终图像数据。

3. 发明授权

US08160200B2 Method and system for image data acquisition 有权
标题翻译：图像数据采集方法和系统
公开(公告)号：US08160200B2
公开(公告)日：2012-04-17
申请号：US12750050
申请日：2010-03-30
申请人： John Eric Tkaczyk , David Allen Langan , Samit Kumar Basu , Xiaoye Wu , Bruno Kristiaan Bernard De Man , Jeffrey Seymour Gordon
发明人： John Eric Tkaczyk , David Allen Langan , Samit Kumar Basu , Xiaoye Wu , Bruno Kristiaan Bernard De Man , Jeffrey Seymour Gordon
IPC分类号： H05G1/26
CPC分类号： A61B6/4035 , A61B6/032 , A61B6/405 , A61B6/4241 , A61B6/482 , A61B6/488 , A61B6/542
摘要： A technique for acquiring desired image data in an imaging system comprising at least one radiation source and a detector is described. Initially, preliminary image data corresponding to an object may be acquired. Further, at least one parameter associated with the radiation source and corresponding to a particular view angle of the radiation source may be determined based on the preliminary image data and a priori information. Similarly, at least one parameter associated with the detector and corresponding to the particular view angle may be determined based on a priori information and the preliminary image data. Efficient operating modes of the radiation source and the detector corresponding to the particular view angle may be selected based on the determined parameters to achieve a desired system performance. Subsequently, the final image data may be acquired using the selected operating modes of the radiation source and the detector.
摘要翻译：描述了在包括至少一个辐射源和检测器的成像系统中获取所需图像数据的技术。首先，可以获取与对象相对应的初步图像数据。此外，可以基于初步图像数据和先验信息来确定与辐射源相关联并且对应于辐射源的特定视角的至少一个参数。类似地，可以基于先验信息和初步图像数据来确定与检测器相关联并且对应于特定视角的至少一个参数。可以基于确定的参数来选择对应于特定视角的辐射源和检测器的有效操作模式以实现期望的系统性能。随后，可以使用所选择的辐射源和检测器的操作模式来获取最终图像数据。

4. 发明授权

US07433443B1 System and method of CT imaging with second tube/detector patching 有权
标题翻译：用二次管/检测器修补CT成像的系统和方法
公开(公告)号：US07433443B1
公开(公告)日：2008-10-07
申请号：US11846664
申请日：2007-08-29
申请人： John Eric Tkaczyk , Samit Kumar Basu , Xiaoye Wu , Yanfeng Du
发明人： John Eric Tkaczyk , Samit Kumar Basu , Xiaoye Wu , Yanfeng Du
IPC分类号： H05G1/26
CPC分类号： A61B6/4014 , A61B6/032 , A61B6/4241 , G01T1/2985
摘要： A CT imaging system includes a rotatable gantry having an opening to receive an object to be scanned, a first x-ray emission source attached to the rotatable gantry and configured to emit x-rays toward the object, and a second x-ray emission source attached to the rotatable gantry and configured to emit x-rays toward the object. A first detector is configured to receive x-rays that emit from the first x-ray emission source, and a second detector configured to receive x-rays that emit from the second x-ray emission source. A first portion of the first detector is configured to operate in an integration mode and a first portion of the second detector is configured to operate in at least a photon-counting mode.
摘要翻译： CT成像系统包括可旋转机架，其具有用于接收待扫描物体的开口，附接到可旋转机架并被配置为朝向物体发射x射线的第一x射线发射源，以及第二x射线发射源附接到可旋转机架并且被配置为朝向物体发射X射线。第一检测器被配置为接收从第一x射线发射源发射的X射线，以及第二检测器，被配置为接收从第二x射线发射源发射的X射线。第一检测器的第一部分被配置为以积分模式操作，并且第二检测器的第一部分被配置为以至少光子计数模式操作。

5. 发明授权

US07696483B2 High DQE photon counting detector using statistical recovery of pile-up events 失效
标题翻译：高DQE光子计数检测器采用统计恢复堆积事件
公开(公告)号：US07696483B2
公开(公告)日：2010-04-13
申请号：US11837328
申请日：2007-08-10
申请人： John Eric Tkaczyk , Samit Kumar Basu , Wen Li , Yanfeng Du
发明人： John Eric Tkaczyk , Samit Kumar Basu , Wen Li , Yanfeng Du
IPC分类号： G01T1/24
CPC分类号： G01T1/171 , G01T1/247 , G01T1/249
摘要： A photon-counting detector includes a direct conversion material and a data acquisition system with a first comparator having a first signal level threshold indicative of a noise level of a spectrum of photons, the first comparator configured to output a count when the electrical signal level exceeds the first signal level threshold, and a second comparator having a second signal level threshold indicative of the maximum energy of the spectrum of photons, the second comparator configured to output a count when the electrical signal exceeds the second signal level threshold where a photon count is determined based on the counts from the first and second comparators.
摘要翻译：光子计数检测器包括直接转换材料和具有第一比较器的数据采集系统，第一比较器具有指示光子谱的噪声电平的第一信号电平阈值，第一比较器被配置为当电信号电平超过时输出计数第一信号电平阈值和具有指示光子谱的最大能量的第二信号电平阈值的第二比较器，第二比较器被配置为当电信号超过第二信号电平阈值时输出计数，其中光子计数是基于来自第一和第二比较器的计数确定。

6. 发明申请

US20090039273A1 HIGH DQE PHOTON COUNTING DETECTOR USING STATISTICAL RECOVERY OF PILE-UP EVENTS 失效
标题翻译：使用统计恢复活动的高DQE光电计数检测器
公开(公告)号：US20090039273A1
公开(公告)日：2009-02-12
申请号：US11837328
申请日：2007-08-10
申请人： John Eric Tkaczyk , Samit Kumar Basu , Wen Li , Yanfeng Du
发明人： John Eric Tkaczyk , Samit Kumar Basu , Wen Li , Yanfeng Du
IPC分类号： G01T1/24
CPC分类号： G01T1/171 , G01T1/247 , G01T1/249
摘要： A photon-counting detector includes a direct conversion material constructed to directly convert an energy of at least one incident photon to an electrical signal indicative of the energy level of the at least one individual photon and a data acquisition system (DAS). The DAS includes a first comparator having a first signal level threshold that is less than an electrical signal level that is indicative of a maximum energy of a spectrum of photons, the first comparator configured to output a count when the electrical signal level exceeds the first signal level threshold, and a second comparator having a second signal level threshold that is greater than or equal to the electrical signal level indicative of the maximum energy of the spectrum of photons, the second comparator configured to output a count when the electrical signal exceeds the second signal level threshold. The DAS further includes a device configured to determine a photon count based on the counts from the first and second comparators and to output the photon count for image reconstruction.
摘要翻译：光子计数检测器包括被直接转换至少一个入射光子的能量到指示至少一个单独光子和数据采集系统（DAS）的能级的电信号的直接转换材料。 DAS包括第一比较器，其具有小于指示光子谱的最大能量的电信号电平的第一信号电平阈值，第一比较器被配置为当电信号电平超过第一信号时输出计数以及具有大于或等于指示光子谱的最大能量的电信号电平的第二信号电平阈值的第二比较器，所述第二比较器被配置为当电信号超过第二电平时输出计数信号电平门限。 DAS还包括被配置为基于来自第一和第二比较器的计数确定光子计数并输出用于图像重建的光子计数的装置。

7. 发明授权

US07366279B2 Scatter control system and method for computed tomography 有权
标题翻译：计算机断层扫描的散射控制系统和方法
公开(公告)号：US07366279B2
公开(公告)日：2008-04-29
申请号：US10903298
申请日：2004-07-29
申请人： Peter Michael Edic , Bruno Kristiaan Bernard De Man , Mark Ernest Vermilyea , Christopher David Unger , John Eric Tkaczyk , James Walter LeBlanc , Samit Kumar Basu , William Robert Ross , Jonathan David Short , Scott Stephen Zelakiewicz
发明人： Peter Michael Edic , Bruno Kristiaan Bernard De Man , Mark Ernest Vermilyea , Christopher David Unger , John Eric Tkaczyk , James Walter LeBlanc , Samit Kumar Basu , William Robert Ross , Jonathan David Short , Scott Stephen Zelakiewicz
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/4014 , A61B6/4028 , A61B6/4291 , A61B6/5282 , G21K1/025
摘要： Various configurations for scatter reduction and control are provided for CT imaging. These configurations include an imaging system having a stationary detector extending generally around a portion of an imaging volume and a distributed X-ray source placed proximal to the stationary detector for radiating an X-ray beam toward the stationary detector. A scatter control system is further provided that is configured to adaptively operate in cooperation with the stationary detector and the distributed X-ray source to focally align collimator septa contained therein to the X-ray beam at a given focal point and to provide X-ray beam scatter control.
摘要翻译：为CT成像提供了用于散射减少和控制的各种配置。这些配置包括成像系统，其具有大致围绕成像体积的一部分延伸的固定检测器，以及放置在固定检测器附近的分布式X射线源，用于向固定检测器辐射X射线束。还提供了一种散射控制系统，其被配置为与固定式检测器和分布式X射线源协作自适应地操作，以将给定焦点上的准直器隔片聚焦到X射线束，并提供X射线光束散射控制。

8. 发明申请

US20080056435A1 Acquisition and reconstruction of projection data using a stationary CT geometry 有权
标题翻译：使用固定CT几何获取和重建投影数据
公开(公告)号：US20080056435A1
公开(公告)日：2008-03-06
申请号：US11726023
申请日：2007-03-20
申请人： Samit Kumar Basu , Bruno De Man , Jed Douglas Pack , Xiaoye Wu , Zhye Yin , Peter Michael Edic
发明人： Samit Kumar Basu , Bruno De Man , Jed Douglas Pack , Xiaoye Wu , Zhye Yin , Peter Michael Edic
IPC分类号： G01N23/00
CPC分类号： G01T1/2985 , A61B6/027
摘要： Systems and methods are provided for acquiring and reconstructing projection data that is mathematically complete or sufficient using a computed tomography (CT) system having stationary distributed X-ray sources and detector arrays. In one embodiment, a distributed source is provided as arcuate segments offset in the X-Y plane and along the Z-axis.
摘要翻译：提供了系统和方法，用于使用具有固定分布式X射线源和检测器阵列的计算机断层摄影（CT）系统来获取和重建数学上完整或足够的投影数据。在一个实施例中，分布式源被提供为在X-Y平面和Z轴上偏移的弧形段。

9. 发明授权

US07835486B2 Acquisition and reconstruction of projection data using a stationary CT geometry 有权
标题翻译：使用固定CT几何获取和重建投影数据
公开(公告)号：US07835486B2
公开(公告)日：2010-11-16
申请号：US11726023
申请日：2007-03-20
申请人： Samit Kumar Basu , Bruno De Man , Jed Douglas Pack , Xiaoye Wu , Zhye Yin , Peter Michael Edic
发明人： Samit Kumar Basu , Bruno De Man , Jed Douglas Pack , Xiaoye Wu , Zhye Yin , Peter Michael Edic
IPC分类号： G01N23/083
CPC分类号： G01T1/2985 , A61B6/027
摘要： Systems and methods are provided for acquiring and reconstructing projection data that is mathematically complete or sufficient using a computed tomography (CT) system having stationary distributed X-ray sources and detector arrays. In one embodiment, a distributed source is provided as arcuate segments offset in the X-Y plane and along the Z-axis.
摘要翻译：提供了系统和方法，用于使用具有固定分布式X射线源和检测器阵列的计算机断层摄影（CT）系统来获取和重建数学上完整或足够的投影数据。在一个实施例中，分布式源被提供为在X-Y平面和Z轴上偏移的弧形段。

10. 发明授权

US07280631B2 Stationary computed tomography system and method 有权
标题翻译：固定计算机断层扫描系统和方法
公开(公告)号：US07280631B2
公开(公告)日：2007-10-09
申请号：US10816064
申请日：2004-04-01
申请人： Bruno Kristiaan Bernard De Man , Samit Kumar Basu , Peter Michael Edic , Robert Franklin Senzig , William Robert Ross , Xiaoye Wu , Colin Richard Wilson , Mark Ernest Vermilyea , Eugene Lino Saragnese
发明人： Bruno Kristiaan Bernard De Man , Samit Kumar Basu , Peter Michael Edic , Robert Franklin Senzig , William Robert Ross , Xiaoye Wu , Colin Richard Wilson , Mark Ernest Vermilyea , Eugene Lino Saragnese
IPC分类号： G01N23/00
CPC分类号： A61B6/4275 , A61B6/027 , A61B6/03 , A61B6/032 , A61B6/4014 , G01N23/046 , G01N2223/419 , G01T1/2985
摘要： Configurations for stationary imaging systems are provided. The configurations may include combinations of various types of distributed sources of X-ray radiation, which generally include addressable emitter elements which may be triggered for emission in desired sequences and combinations. The sources may be ring-like, partial ring-like, or line-like (typically along a Z-axis), and so forth. Combinations of these are envisaged. Corresponding detectors may also be full ring detectors or partial ring detectors associated with the sources to provide sufficient coverage of imaging volumes and to provide the desired mathematical completeness of the collected data.
摘要翻译：提供固定成像系统的配置。这些配置可以包括各种类型的分布的X射线辐射源的组合，其通常包括可寻址的发射体元件，其可以以期望的顺序和组合被发射。源可以是环状，部分环状或线状（通常沿Z轴），等等。设想这些的组合。相应的检测器还可以是与源相关联的全环检测器或部分环检测器，以提供成像体积的足够覆盖并提供收集的数据的期望的数学完整性。

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