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1. 发明申请

US20060023832A1 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：US20060023832A1
公开(公告)日：2006-02-02
申请号：US10903298
申请日：2004-07-29
申请人： Peter Edic , Bruno Bernard De Man , Mark Vermilyea , Christopher Unger , John Tkaczyk , James LeBlanc , Samit Basu , William Ross , Jonathan Short , Scott Zelakiewicz
发明人： Peter Edic , Bruno Bernard De Man , Mark Vermilyea , Christopher Unger , John Tkaczyk , James LeBlanc , Samit Basu , William Ross , Jonathan Short , Scott Zelakiewicz
IPC分类号： H05G1/60 , A61B6/00 , G01N23/00 , G21K1/12
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。

2. 发明申请

US20050111610A1 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：US20050111610A1
公开(公告)日：2005-05-26
申请号：US10816064
申请日：2004-04-01
申请人： Bruno Kristiaan De Man , Samit Basu , Peter Edic , Robert Senzig , William Ross , Xiaoye Wu , Colin Wilson , Mark Vermilyea , Eugene Saragnese
发明人： Bruno Kristiaan De Man , Samit Basu , Peter Edic , Robert Senzig , William Ross , Xiaoye Wu , Colin Wilson , Mark Vermilyea , Eugene Saragnese
IPC分类号： A61B6/03 , G01N23/04 , G01T1/29 , G21K1/12 , A61B6/00 , G01N23/00 , G01T1/164 , H05G1/60
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。

3. 发明申请

US20050226364A1 Rotational computed tomography system and method 审中-公开
标题翻译：旋转计算机断层摄影系统及方法
公开(公告)号：US20050226364A1
公开(公告)日：2005-10-13
申请号：US10816015
申请日：2004-03-31
申请人： Bruno Kristiaan Bernard De Man , Samit Basu , Peter Edic , William Ross , Mark Vermilyea
发明人： Bruno Kristiaan Bernard De Man , Samit Basu , Peter Edic , William Ross , Mark Vermilyea
IPC分类号： A61B6/03 , G21K1/12 , A61B6/00 , G01N23/00 , H05G1/60
CPC分类号： A61B6/032 , A61B6/035 , A61B6/4014
摘要： Geometries and configurations are provided for CT systems in which rotational loading is reduced, permitting higher speeds and lighter structures to be implemented in the systems. In certain embodiments a distributed and addressable rotating radiation source is provided with a rotating detector. In other embodiments a distributed and addressable stationary radiation source is provided with a rotating detector. In yet other embodiments a distributed and addressable radiation source is provided that rotates with respect to a stationary detector. The sources may be ring-like, arcuate and/or lines extending at least in the Z-direction. Sources may include a large number of distributed emitters arranged in lines, arcs and one- or two-dimensional arrays.
摘要翻译：为CT系统提供几何和配置，其中旋转负载减小，允许在系统中实现更高的速度和更轻的结构。在某些实施例中，分布式和可寻址的旋转辐射源设置有旋转检测器。在其他实施例中，分布式和可寻址的固定辐射源设置有旋转检测器。在其他实施例中，提供了一种相对于静止检测器旋转的分布式和可寻址的辐射源。源可以是至少沿Z方向延伸的环状，弓形和/或线。源可以包括以线，弧和一维或二维阵列排列的大量分布式发射器。

4. 发明申请

US20050100127A1 Methods and apparatus for image reconstruction in distributed x-ray source CT systems 有权
公开(公告)号：US20050100127A1
公开(公告)日：2005-05-12
申请号：US10704179
申请日：2003-11-07
申请人： Qi Zhao , Peter Edic , Bruno Bernard De Man , Samit Basu
发明人： Qi Zhao , Peter Edic , Bruno Bernard De Man , Samit Basu
IPC分类号： A61B6/03 , G21K1/12 , A61B6/00 , G01N23/00 , H05G1/60
CPC分类号： A61B6/4014 , A61B6/032 , A61B6/4085 , Y10S378/901
摘要： A method for imaging an object that includes utilizing a computed tomography imaging apparatus having a distributed x-ray source to acquire samples of projection data of an object in angular and temporal space utilizing a predetermined sampling lattice. Acquired projection data is filtered utilizing a two-dimensional linear filter to produce filtered data, and the filtered data is then backprojected to obtain a reconstructed image of the object.

5. 发明申请

US20050094771A1 Method and apparatus for calibrating volumetric computed tomography systems 失效
标题翻译：用于校准体积计算机断层摄影系统的方法和装置
公开(公告)号：US20050094771A1
公开(公告)日：2005-05-05
申请号：US10699087
申请日：2003-10-31
申请人： Samit Basu , Peter Edic , Bruno Bernard De Man
发明人： Samit Basu , Peter Edic , Bruno Bernard De Man
IPC分类号： A61B6/00 , A61B6/03 , G01D18/00
CPC分类号： A61B6/583 , A61B6/032
摘要： The present invention provides a method for determining a geometry of a scanning volumetric computed tomographic (CT) system having a rotation axis, a rotational plane, an x-ray source and a detector. The method includes scanning a phantom having a series of spatially separated discrete markers with the scanning volumetric computed tomographic system, wherein the markers are configured on a supporting structure of the phantom so as to permit separate identification of each marker in a collection of projection images. The method further includes locating images of the markers in each projection, using the located marker images to assign marker locations to tracks, and using the assigned tracks, determining a relative alignment between the detector, the source, and the rotation axis of the scanning volumetric computed tomographic system.
摘要翻译：本发明提供了一种用于确定具有旋转轴，旋转平面，x射线源和检测器的扫描体积计算机断层摄影（CT）系统的几何形状的方法。该方法包括用扫描体积计算机断层摄影系统扫描具有一系列空间分离的离散标记的体模，其中标记被配置在体模的支撑结构上，以允许在投影图像的集合中单独识别每个标记。该方法还包括使用定位的标记图像将标记的图像定位在每个投影中，以将标记位置分配给轨迹，并使用分配的轨迹，确定扫描体积的检测器，源和旋转轴之间的相对对准计算机断层摄影系统。

6. 发明申请

US20050226484A1 Method and apparatus for efficient calculation and use of reconstructed pixel variance in tomography images 有权
标题翻译：用于有效计算和使用断层图像中的重建像素方差的方法和装置
公开(公告)号：US20050226484A1
公开(公告)日：2005-10-13
申请号：US10813758
申请日：2004-03-31
申请人： Samit Basu , Bruno Bernard De Man , Peter Edic , Ricardo Avila , James Miller , Colin McCulloch , Deborah Walter , Paulo Ricardo Mendonca , William Leue , Thomas Sebastian
发明人： Samit Basu , Bruno Bernard De Man , Peter Edic , Ricardo Avila , James Miller , Colin McCulloch , Deborah Walter , Paulo Ricardo Mendonca , William Leue , Thomas Sebastian
IPC分类号： G06K9/00
CPC分类号： G06T11/005 , G06T2211/421
摘要： A technique is disclosed for generating variance data and a variance map from measured projection data acquired from a tomography system. The method comprises accessing the measured projection data from the tomography system. The method further comprises generating the variance map from the measured projection data and displaying, analyzing or processing the variance map. The variance data is determined based upon a statistical model from measured image data, and may be used for image analysis, data acquisition, in computer aided diagnosis routines, and so forth.
摘要翻译：公开了用于从断层摄影系统获取的测量投影数据产生方差数据和方差图的技术。该方法包括从断层摄影系统访问所测量的投影数据。该方法还包括从所测量的投影数据生成方差图并显示，分析或处理方差图。方差数据基于来自测量图像数据的统计模型确定，并且可以用于图像分析，数据采集，计算机辅助诊断例程等。

7. 发明申请

US20050031075A1 System and method for detecting an object 有权
标题翻译：用于检测物体的系统和方法
公开(公告)号：US20050031075A1
公开(公告)日：2005-02-10
申请号：US10743195
申请日：2003-12-22
申请人： Forrest Hopkins , Peter Edic , Samit Basu , Bruno De Man , James Leblanc , Xiaoye Wu , Deborah Walter , William Ross , Colin Wilson , Ricardo Avila , Robert Kaucic
发明人： Forrest Hopkins , Peter Edic , Samit Basu , Bruno De Man , James Leblanc , Xiaoye Wu , Deborah Walter , William Ross , Colin Wilson , Ricardo Avila , Robert Kaucic
IPC分类号： G01V5/00 , G01N23/04
CPC分类号： G01V5/0016 , A61B6/4035 , A61B6/4241 , A61B6/482 , G01V5/0041 , G01V5/005 , G06F19/00
摘要： A system and method for ascertaining the identity of an object within an enclosed article. The system includes an acquisition subsystem utilizing a stationary radiation source and detector, a reconstruction subsystem, a computer-aided detection (CAD) subsystem, and a 2D/3D visualization subsystem. The detector may be an energy discriminating detector. The acquisition subsystem communicates view data to the reconstruction subsystem, which reconstructs it into image data and communicates it to the CAD subsystem. The CAD subsystem analyzes the image data to ascertain whether it contains any area of interest. Any such area of interest data is sent to the reconstruction subsystem for further reconstruction, using more rigorous algorithms and further analyzed by the CAD subsystem. Other information, such as risk variables or trace chemical detection information may be communicated to the CAD subsystem to be included in its analysis.
摘要翻译：用于确定封闭物品内物体的身份的系统和方法。该系统包括利用固定辐射源和检测器，重建子系统，计算机辅助检测（CAD）子系统和2D / 3D可视化子系统的采集子系统。检测器可以是能量识别检测器。采集子系统将视图数据传送到重建子系统，将其重建为图像数据并将其传送到CAD子系统。 CAD子系统分析图像数据，以确定它是否包含任何感兴趣的区域。任何这样的感兴趣的数据区域被发送到重建子系统以进一步重建，使用更严格的算法并由CAD子系统进一步分析。其他信息，例如风险变量或痕量化学检测信息可以传达给CAD子系统以包含在其分析中。

8. 发明申请

US20070206721A1 PHOTON COUNTING X-RAY DETECTOR WITH OVERRANGE LOGIC CONTROL 有权
标题翻译：具超声逻辑控制的光电计数X射线探测器
公开(公告)号：US20070206721A1
公开(公告)日：2007-09-06
申请号：US11744292
申请日：2007-05-04
申请人： John Tkaczyk , Jonathan Short , James Rose , Xiaoye Wu , Samit Basu
发明人： John Tkaczyk , Jonathan Short , James Rose , Xiaoye Wu , Samit Basu
IPC分类号： G01N23/083
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。

9. 发明申请

US20060126779A1 Method and system for efficient helical cone-beam reconstruction 有权
标题翻译：高效螺旋锥束重建方法与系统
公开(公告)号：US20060126779A1
公开(公告)日：2006-06-15
申请号：US11011358
申请日：2004-12-15
申请人： Samit Basu , Bruno Bernard De Man
发明人： Samit Basu , Bruno Bernard De Man
IPC分类号： H05G1/60 , A61B6/00 , G01N23/00 , G21K1/12
CPC分类号： A61B6/032 , A61B6/027 , G01N23/046 , G01N2223/3304 , G01N2223/419 , Y10S378/901
摘要： A method for reconstructing cone-beam projection data is provided. The method comprises scanning an object in helical mode, wherein the scanning comprises obtaining cone-beam projection data. The method further comprises processing the cone-beam projection data along a plurality of data filtering curves. The processing includes processing the cone-beam projection data along a portion of the data filtering curves that extends outside of a physical detector area to a virtual detector area. Then, the method comprises using the processed cone-beam projection data in the generation of a reconstructed image of the object.
摘要翻译：提供了一种重建锥束投影数据的方法。该方法包括以螺旋模式扫描物体，其中扫描包括获得锥束投影数据。该方法还包括沿多个数据滤波曲线处理锥形束投影数据。该处理包括沿着在物理检测器区域外延伸到虚拟检测器区域的数据滤波曲线的一部分处理锥形束投影数据。然后，该方法包括在生成对象的重建图像时使用经处理的锥束投影数据。

10. 发明申请

US20070147574A1 Method for performing image reconstruction using hybrid computed tomography detectors 有权
标题翻译：使用混合计算机断层摄影检测器进行图像重建的方法
公开(公告)号：US20070147574A1
公开(公告)日：2007-06-28
申请号：US11317841
申请日：2005-12-22
申请人： Bruno Bernard De Man , Samit Basu
发明人： Bruno Bernard De Man , Samit Basu
IPC分类号： H05G1/60 , A61B6/00 , G01N23/00 , G21K1/12
CPC分类号： G01N23/046 , A61B6/032 , A61B6/4241 , A61B6/482 , G01N2223/419 , Y10S378/901
摘要： A method for acquiring an image data set comprising energy integrating (EI) and energy discriminating (ED) data measurements is provided. The method comprises obtaining EI measurement data and ED measurement data during an acquisition cycle. The method then comprises combining the EI measurement data and the ED measurement data before, during or after reconstruction. Finally the method comprises performing reconstruction on the original or combined datasets to obtain one or more of an EI image and one or more ED component images.
摘要翻译：提供了一种用于获取包括能量积分（EI）和能量鉴别（ED）数据测量的图像数据集的方法。该方法包括在采集周期中获得EI测量数据和ED测量数据。该方法然后包括在重建之前，期间或之后组合EI测量数据和ED测量数据。最后，该方法包括对原始或组合数据集执行重建以获得EI图像和一个或多个ED分量图像中的一个或多个。

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