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1. 发明授权

US08611627B2 CT spectral calibration 有权
标题翻译： CT光谱校准
公开(公告)号：US08611627B2
公开(公告)日：2013-12-17
申请号：US12976785
申请日：2010-12-22
申请人： Xiaoye Wu , Robert Franklin Senzig , Jing Zhao
发明人： Xiaoye Wu , Robert Franklin Senzig , Jing Zhao
IPC分类号： G06K9/00
CPC分类号： A61B6/032 , A61B6/5205 , A61B6/5229 , A61B6/583 , G06T11/005
摘要： The present disclosure relates to the performing spectral calibration of a CT imaging system. In accordance with certain embodiments, spectral calibration phantoms are scanned while positioned on a table in the imaging volume of the CT imaging system. The scans of the calibration phantoms, in conjunction with air sans performed on the CT imaging system, are used to derive information about the deviation of the measured phantom scans from an ideal. The deviation information is in turn used to derive spectral calibration vectors that may be used with the CT imaging system.
摘要翻译：本公开涉及执行CT成像系统的光谱校准。根据某些实施例，在定位在CT成像系统的成像体积的台上的同时扫描光谱校准模体。校准模型的扫描结合在CT成像系统上执行的空气，用于得到关于测量的幻影扫描与理想的偏差的信息。偏差信息又用于导出可与CT成像系统一起使用的光谱校准矢量。

2. 发明申请

US20110249879A1 CT SPECTRAL CALIBRATION 有权
标题翻译： CT光谱校准
公开(公告)号：US20110249879A1
公开(公告)日：2011-10-13
申请号：US12976785
申请日：2010-12-22
申请人： Xiaoye Wu , Robert Franklin Senzig , Jing Zhao
发明人： Xiaoye Wu , Robert Franklin Senzig , Jing Zhao
IPC分类号： G06K9/00
CPC分类号： A61B6/032 , A61B6/5205 , A61B6/5229 , A61B6/583 , G06T11/005
摘要： The present disclosure relates to the performing spectral calibration of a CT imaging system. In accordance with certain embodiments, spectral calibration phantoms are scanned while positioned on a table in the imaging volume of the CT imaging system. The scans of the calibration phantoms, in conjunction with air sans performed on the CT imaging system, are used to derive information about the deviation of the measured phantom scans from an ideal. The deviation information is in turn used to derive spectral calibration vectors that may be used with the CT imaging system.
摘要翻译：本公开涉及执行CT成像系统的光谱校准。根据某些实施例，在定位在CT成像系统的成像体积的台上的同时扫描光谱校准模体。校准模型的扫描结合在CT成像系统上执行的空气，用于得到关于测量的幻影扫描与理想的偏差的信息。偏差信息又用于导出可与CT成像系统一起使用的光谱校准矢量。

3. 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。

4. 发明授权

US08160206B2 Dual-energy imaging at reduced sample rates 有权
标题翻译：降低采样率的双能量成像
公开(公告)号：US08160206B2
公开(公告)日：2012-04-17
申请号：US12962972
申请日：2010-12-08
申请人： Xiaoye Wu , David Allen Langan , Jiang Hsieh , Robert Franklin Senzig , Hao Lai , Dan Xu , Thomas Matthew Benson
发明人： Xiaoye Wu , David Allen Langan , Jiang Hsieh , Robert Franklin Senzig , Hao Lai , Dan Xu , Thomas Matthew Benson
IPC分类号： H05G1/64
CPC分类号： A61B6/4241 , A61B6/032 , A61B6/405 , A61B6/482 , A61B6/505 , G06T11/005 , G06T2211/408
摘要： The present disclosure relates to the generation of dual-energy X-ray data using a data sampling rate comparable to the rate utilized for single-energy imaging. In accordance with the present technique a reduced kVp switching rate is employed compared to conventional dual-energy imaging. Full angular resolution is achieved in the generated images.
摘要翻译：本公开涉及使用与用于单能量成像的速率相当的数据采样率来生成双能量X射线数据。根据本技术，与传统的双能量成像相比，采用了降低的kVp开关速率。在生成的图像中实现全角度分辨率。

5. 发明申请

US20110150183A1 DUAL-ENERGY IMAGING AT REDUCED SAMPLE RATES 有权
标题翻译：降低采样率的双能量成像
公开(公告)号：US20110150183A1
公开(公告)日：2011-06-23
申请号：US12962972
申请日：2010-12-08
申请人： Xiaoye Wu , David Allen Langan , Jiang Hsieh , Robert Franklin Senzig , Hao Lia , Dan Xu , Thomas Matthew Benson
发明人： Xiaoye Wu , David Allen Langan , Jiang Hsieh , Robert Franklin Senzig , Hao Lia , Dan Xu , Thomas Matthew Benson
IPC分类号： H05G1/64
CPC分类号： A61B6/4241 , A61B6/032 , A61B6/405 , A61B6/482 , A61B6/505 , G06T11/005 , G06T2211/408
摘要： The present disclosure relates to the generation of dual-energy X-ray data using a data sampling rate comparable to the rate utilized for single-energy imaging. In accordance with the present technique a reduced kVp switching rate is employed compared to conventional dual-energy imaging. Full angular resolution is achieved in the generated images.
摘要翻译：本公开涉及使用与用于单能量成像的速率相当的数据采样率来生成双能量X射线数据。根据本技术，与传统的双能量成像相比，采用了降低的kVp开关速率。在生成的图像中实现全角度分辨率。

6. 发明授权

US08483361B2 Anode target for an x-ray tube and method for controlling the x-ray tube 有权
标题翻译：用于X射线管的阳极靶和用于控制X射线管的方法
公开(公告)号：US08483361B2
公开(公告)日：2013-07-09
申请号：US12976950
申请日：2010-12-22
申请人： Paavana Sainath , Xiaoye Wu , Girijesh K. Yadava
发明人： Paavana Sainath , Xiaoye Wu , Girijesh K. Yadava
IPC分类号： H01J35/30
CPC分类号： H01J35/10 , A61B6/027 , A61B6/032 , A61B6/4021 , A61B6/4028 , A61B6/4078 , A61B6/4233 , A61B6/482 , H01J35/14 , H01J2235/081 , H01J2235/086
摘要： Anode targets for an x-ray tube and methods for controlling x-ray tubes for x-ray systems are provided. One x-ray system includes a field-generator configured to generate a field, an electron beam generator configured to generate an electron beam directed towards a target and a voltage controller configured to control the electron beam generator to produce an electron beam at a first energy level and an electron beam at a second energy level. The x-ray system also includes a field-generator controller configured to control a field to deflect at least one of the electron beams, wherein the electron beam, at the first energy level, impinges on the target at a first contact position and the electron beam, at the second energy level, impinges on the target at a second contact position. The at the first contact position and at the second contact position is configured to filter x-rays.
摘要翻译：阳极靶向X射线管，并提供了用于控制x射线系统的X射线管的方法。一个x射线系统包括被配置为产生场的场发生器，被配置为产生朝向目标的电子束的电子束发生器和被配置为控制电子束发生器以产生第一能量的电子束的电压控制器电平和电子束处于第二能级。 x射线系统还包括场发生器控制器，其被配置为控制场以偏转至少一个电子束，其中在第一能级处的电子束在第一接触位置撞击靶，并且电子在第二能量水平处的光束在第二接触位置处撞击在目标上。在第一接触位置处和在第二接触位置处被配置为过滤x射线。

7. 发明授权

US08396185B2 Method of fast current modulation in an X-ray tube and apparatus for implementing same 有权
标题翻译： X射线管中的快速电流调制方法及其实现方法
公开(公告)号：US08396185B2
公开(公告)日：2013-03-12
申请号：US12778756
申请日：2010-05-12
申请人： Yun Zou , Brian Lounsberry , Carey Shawn Rogers , Sergio Lemaitre , Xiaoye Wu , Jizhong Chen , Floribertus P. Heukensfeldt Jansen
发明人： Yun Zou , Brian Lounsberry , Carey Shawn Rogers , Sergio Lemaitre , Xiaoye Wu , Jizhong Chen , Floribertus P. Heukensfeldt Jansen
IPC分类号： H05G1/08 , H05G1/32 , H05G1/56 , H01J35/06 , H01J35/14
CPC分类号： A61B6/405 , A61B6/032 , A61B6/4021 , A61B6/4291 , A61B6/482 , H01J35/045 , H01J35/06
摘要： An X-ray tube includes a target and a cathode assembly. The cathode assembly includes a first filament configured to emit a first beam of electrons toward the target, a first gridding electrode coupled to the first filament, a second filament configured to emit a second beam of electrons toward the target, and a second gridding electrode coupled to the second filament.
摘要翻译： X射线管包括靶和阴极组件。阴极组件包括：第一灯丝，被配置为朝向靶发射第一电子束;第一栅网电极，其耦合到第一灯丝;第二灯丝，被配置为朝向靶发射第二电子束;以及第二栅电极，到第二根丝。

8. 发明授权

US08363779B2 System and method of acquiring multi-energy CT imaging data 有权
标题翻译：获取多能CT成像数据的系统和方法
公开(公告)号：US08363779B2
公开(公告)日：2013-01-29
申请号：US13484707
申请日：2012-05-31
申请人： Naveen Chandra , Xiaoye Wu , Thomas L. Toth , Jiang Hsieh
发明人： Naveen Chandra , Xiaoye Wu , Thomas L. Toth , Jiang Hsieh
IPC分类号： A61B6/00 , H05G1/64 , G06K9/00
CPC分类号： A61B6/4035 , A61B6/032 , A61B6/4007 , A61B6/405 , A61B6/4241 , A61B6/482
摘要： A CT system includes a rotatable gantry having an opening for receiving an object to be scanned, and a controller. The controller is configured to apply a first kVp for a first time period, apply a second kVp for a second time period, integrate two or more view datasets during the first time period, integrate one or more view datasets during the second time period, and generate an image using the datasets integrated during the first time period and during the second time period.
摘要翻译： CT系统包括具有用于接收待扫描物体的开口的可旋转机架和控制器。控制器被配置为在第一时间段内施加第一kVp，在第二时间段施加第二kVp，在第一时间段期间集成两个或更多个视图数据集，在第二时间段期间集成一个或多个视图数据集;以及使用在第一时间段期间和第二时间段期间集成的数据集生成图像。

9. 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。

10. 发明申请

US20120069952A1 SYSTEM AND METHOD OF SPECTRAL CALIBRATION AND BASIS MATERIAL DECOMPOSITION FOR X-RAY CT SYSTEMS 有权
标题翻译： X射线CT系统的光谱校准和基础材料分解系统与方法
公开(公告)号：US20120069952A1
公开(公告)日：2012-03-22
申请号：US12883631
申请日：2010-09-16
申请人： Xiaoye Wu , Dan Xu , Naveen Chandra , Zhanyu Ge , Jiang Hsieh , Daniel David Harrison , Mary Sue Kulpins
发明人： Xiaoye Wu , Dan Xu , Naveen Chandra , Zhanyu Ge , Jiang Hsieh , Daniel David Harrison , Mary Sue Kulpins
IPC分类号： A61B6/03
CPC分类号： A61B6/583 , A61B6/032 , A61B6/482 , A61B6/585
摘要： An imaging system includes an x-ray source that emits a beam of x-rays toward an object, a detector that receives high frequency electromagnetic energy attenuated by the object, a data acquisition system (DAS) operably connected to the detector, and a computer operably connected to the DAS. The computer is programmed to compute detector coefficients based on a static low kVp measurement and a static high kVp measurement, capture incident spectra at high and low kVp during fast kVp switching, compute effective X-ray incident spectra at high and low kVp during fast kVp switching using the captured incident spectra, scan a water phantom and normalize the computed detector coefficients to water, adjust the computed effective X-ray incident spectra based on the normalized detector coefficients, compute basis material decomposition functions using the adjusted X-ray incident spectra, and generate one or more basis material density images using the computed basis material decomposition functions.
摘要翻译：成像系统包括：x射线源，其朝向物体发射X射线束;接收被物体衰减的高频电磁能的检测器;可操作地连接到检测器的数据采集系统（DAS）;以及计算机可操作地连接到DAS。计算机被编程为基于静态低kVp测量和静态高kVp测量来计算检测器系数，在快速kVp切换期间在高和低kVp处捕获入射光谱，在快速kVp期间计算高和低kVp处的有效X射线入射光谱使用捕获的入射光谱切换，扫描水体模型并将计算的检测器系数归一化为水，基于归一化的检测器系数调整计算的有效X射线入射光谱，使用调整的X射线入射光谱计算基础材料分解函数，并使用所计算的基础材料分解函数生成一个或多个基础材料密度图像。

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