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1. 发明授权

US07263167B2 Direct conversion X-ray detector with over-range and pile-up correction 失效
公开(公告)号：US07263167B2
公开(公告)日：2007-08-28
申请号：US11239962
申请日：2005-09-30
申请人： Deborah Joy Walter , John Eric Tkaczyk , Yanfeng Du
发明人： Deborah Joy Walter , John Eric Tkaczyk , Yanfeng Du
IPC分类号： H05G1/26
CPC分类号： A61B6/032 , A61B6/4241 , A61B6/585 , G01T1/171
摘要： A method of scanning a subject to be imaged is presented. The method includes acquiring projection data from a first region of a pixel, where the first region has a first area. Additionally, the method includes acquiring projection data from a second region of the pixel, where the second region has a second area. The method also includes combining projection data from the first and second regions to obtain composite projection data for the pixel. Computer-readable medium and systems that afford functionality of the type defined by this method are also contemplated in conjunction with the present technique.

2. 发明授权

US07212604B2 Multi-layer direct conversion computed tomography detector module 有权
标题翻译：多层直接计算机断层摄影检测模块
公开(公告)号：US07212604B2
公开(公告)日：2007-05-01
申请号：US11171169
申请日：2005-06-29
申请人： John Eric Tkaczyk , James Walter Leblanc , Wen Li , Deborah Joy Walter , Yanfeng Du
发明人： John Eric Tkaczyk , James Walter Leblanc , Wen Li , Deborah Joy Walter , Yanfeng Du
IPC分类号： H01L25/00
CPC分类号： G01T1/2985 , G01T1/241 , G01T1/242 , G01T1/243 , G01T1/249
摘要： A computed tomography detector module is presented. The detector module includes a substrate having a topside and a bottom side. Additionally, the detector module includes a plurality of detector layers disposed on the top side of the substrate in a direction that is substantially orthogonal to the substrate, where each of the plurality of detector layers comprises a direct conversion material configured to absorb radiation, and where each of the plurality of detector layers comprises a first side and a second side. Further, the detector module includes a plurality of pixelated anode contacts is disposed on the first side of each of the plurality of detector layers. Also, the detector module includes a common cathode contact is disposed on the second side of each of the plurality of detector layers.
摘要翻译：提出了一种计算机断层扫描检测器模块。检测器模块包括具有顶侧和底侧的基板。另外，检测器模块包括多个检测器层，该多个检测器层沿基本上垂直于衬底的方向设置在衬底的顶侧上，其中多个检测器层中的每一个包括被配置为吸收辐射的直接转换材料，并且其中多个检测器层中的每一个包括第一侧和第二侧。此外，检测器模块包括多个像素化的阳极触点设置在多个检测器层中的每一个的第一侧上。此外，检测器模块包括公共阴极接触件设置在多个检测器层中的每一个的第二侧上。

3. 发明申请

US20090052621A1 METHOD AND APPARATUS FOR BASIS MATERIAL DECOMPOSITION WITH K-EDGE MATERIALS 审中-公开
标题翻译：用K-EDGE材料进行基础材料分解的方法和装置
公开(公告)号：US20090052621A1
公开(公告)日：2009-02-26
申请号：US11843700
申请日：2007-08-23
申请人： Deborah Joy Walter , Xiaoye Wu , John Eric Tkaczyk , Yanfeng Du
发明人： Deborah Joy Walter , Xiaoye Wu , John Eric Tkaczyk , Yanfeng Du
IPC分类号： G01N23/06
CPC分类号： G01N23/087 , A61B5/4869 , A61B6/032 , A61B6/4035 , A61B6/4042 , A61B6/405 , A61B6/4241 , A61B6/482 , G01N2223/423 , G01N2223/424
摘要： A diagnostic imaging system includes a high frequency electromagnetic energy source that emits a beam of high frequency electromagnetic energy toward an object to be imaged, a detector that receives high frequency electromagnetic energy emitted by the high frequency electromagnetic energy source, and a data acquisition system (DAS) operably connected to the detector. A computer is operably connected to the DAS and is programmed to generate corresponding sets of projection values for three or more energy spectra through employment of attenuation coefficients of three or more basis materials to simulate responses of the diagnostic imaging system to a plurality of lengths of the three or more basis materials wherein the three or more basis materials comprise two or more non K-edge basis materials and one or more K-edge basis materials.
摘要翻译：一种诊断成像系统包括：高频电磁能源，其向待成像对象发射高频电磁能束;接收由高频电磁能源发出的高频电磁能的检测器;以及数据采集系统（ DAS）可操作地连接到检测器。计算机可操作地连接到DAS，并被编程为通过使用三个或更多个基础材料的衰减系数来产生三个或更多个能量谱的相应的投影值组，以模拟诊断成像系统对多个长度的三种或更多种基础材料，其中三种或更多种基材包含两种或多种非K边缘基础材料和一种或多种K边缘基础材料。

4. 发明授权

US07697657B2 System and method of density and effective atomic number imaging 失效
标题翻译：密度和有效原子序数成像的系统和方法
公开(公告)号：US07697657B2
公开(公告)日：2010-04-13
申请号：US11690245
申请日：2007-03-23
申请人： Deborah Joy Walter , Xiaoye Wu , John Eric Tkaczyk , Yanfeng Du
发明人： Deborah Joy Walter , Xiaoye Wu , John Eric Tkaczyk , Yanfeng Du
IPC分类号： A61B6/00
CPC分类号： A61B6/505 , A61B6/032 , A61B6/4241 , A61B6/481 , A61B6/583
摘要： A system and method of density and effective atomic number imaging include a computer programmed to acquire projection data from the detector of an unknown material at the time of projection data acquisition. The computer is also programmed to generate a density image for the unknown material based on a calibration of two or more known basis materials and to generate an effective atomic number (Z) for the unknown material based on the calibration of two or more known basis materials and based on a function arctan of a ratio of atomic numbers of the two or more known basis materials. The density and effective atomic number images are stored to a computer readable storage medium.
摘要翻译：密度和有效原子序数成像的系统和方法包括被编程为在投影数据采集时从未知材料的检测器获取投影数据的计算机。计算机还被编程为基于两种或多种已知基础材料的校准产生未知材料的密度图像，并且基于两种或更多种已知基础材料的校准来产生未知材料的有效原子序数（Z）并且基于两种或多种已知基础材料的原子序数比的函数关系。密度和有效原子序数图像被存储到计算机可读存储介质中。

5. 发明申请

US20080273666A1 SYSTEM AND METHOD OF DENSITY AND EFFECTIVE ATOMIC NUMBER IMAGING 失效
标题翻译：密度和有效原子数成像系统与方法
公开(公告)号：US20080273666A1
公开(公告)日：2008-11-06
申请号：US11690245
申请日：2007-03-23
申请人： Deborah Joy Walter , Xiaoye Wu , John Eric Tkaczyk , Yanfeng Du
发明人： Deborah Joy Walter , Xiaoye Wu , John Eric Tkaczyk , Yanfeng Du
IPC分类号： H05G1/26
CPC分类号： A61B6/505 , A61B6/032 , A61B6/4241 , A61B6/481 , A61B6/583
摘要： A system and method of density and effective atomic number imaging include a computer programmed to acquire projection data from the detector of an unknown material at the time of projection data acquisition. The computer is also programmed to generate a density image for the unknown material based on a calibration of two or more known basis materials and to generate an effective atomic number (Z) for the unknown material based on the calibration of two or more known basis materials and based on a function arctan of a ratio of atomic numbers of the two or more known basis materials. The density and effective atomic number images are stored to a computer readable storage medium.
摘要翻译：密度和有效原子序数成像的系统和方法包括被编程为在投影数据采集时从未知材料的检测器获取投影数据的计算机。计算机还被编程为基于两种或多种已知基础材料的校准产生未知材料的密度图像，并且基于两种或更多种已知基础材料的校准来产生未知材料的有效原子序数（Z）并且基于两种或多种已知基础材料的原子序数比的函数关系。密度和有效原子序数图像被存储到计算机可读存储介质中。

6. 发明申请

US20080137803A1 DIAGNOSTIC IMAGING TWO NON K-EDGE BASIS MATERIALS PLUS N K-EDGE CONTRAST AGENTS 有权
标题翻译：诊断成像两个非K边缘基础材料
公开(公告)号：US20080137803A1
公开(公告)日：2008-06-12
申请号：US11608162
申请日：2006-12-07
申请人： Xiaoye Wu , Robert F. Senzig , Deborah Joy Walter , James W. LeBlanc , John Eric Tkaczyk
发明人： Xiaoye Wu , Robert F. Senzig , Deborah Joy Walter , James W. LeBlanc , John Eric Tkaczyk
IPC分类号： A61B6/00 , G12B13/00
CPC分类号： A61B6/4241 , A61B6/032 , A61B6/481 , A61B6/482 , A61B6/583
摘要： A diagnostic imaging system in an example comprises a high frequency electromagnetic energy source, a detector, a data acquisition system (DAS), and a computer. The high frequency electromagnetic energy source emits a beam of high frequency electromagnetic energy toward an object to be imaged and be resolved by the system. The detector receives high frequency electromagnetic energy emitted by the high frequency electromagnetic energy source. The DAS is operably connected to the detector. The computer is operably connected to the DAS and programmed to employ an inversion table or function to convert N+2 measured projections at different incident spectra into material specific integrals for N+2 materials that comprise two non K-edge basis materials and N K-edge contrast agents. N comprises an integer greater than or equal to 1.
摘要翻译：示例中的诊断成像系统包括高频电磁能源，检测器，数据采集系统（DAS）和计算机。高频电磁能源向待成像对象发射高频电磁能束，并由系统解决。检测器接收高频电磁能源发出的高频电磁能。 DAS可操作地连接到检测器。计算机可操作地连接到DAS并被编程为采用反演台或功能来将不同入射光谱下的N + 2个测量的投影转换为包含两个非K边缘基础材料的N + 2材料的材料特定积分，并且N K- 边缘造影剂。 N包括大于或等于1的整数。

7. 发明授权

US07756239B2 Diagnostic imaging two non K-edge basis materials plus N K-edge contrast agents 有权
标题翻译：诊断成像两个非K边缘基础材料加N K边缘造影剂
公开(公告)号：US07756239B2
公开(公告)日：2010-07-13
申请号：US11608162
申请日：2006-12-07
申请人： Xiaoye Wu , Robert F. Senzig , Deborah Joy Walter , James W. LeBlanc , John Eric Tkaczyk
发明人： Xiaoye Wu , Robert F. Senzig , Deborah Joy Walter , James W. LeBlanc , John Eric Tkaczyk
IPC分类号： A61B6/00
CPC分类号： A61B6/4241 , A61B6/032 , A61B6/481 , A61B6/482 , A61B6/583
摘要： A diagnostic imaging system in an example comprises a high frequency electromagnetic energy source, a detector, a data acquisition system (DAS), and a computer. The high frequency electromagnetic energy source emits a beam of high frequency electromagnetic energy toward an object to be imaged and be resolved by the system. The detector receives high frequency electromagnetic energy emitted by the high frequency electromagnetic energy source. The DAS is operably connected to the detector. The computer is operably connected to the DAS and programmed to employ an inversion table or function to convert N+2 measured projections at different incident spectra into material specific integrals for N+2 materials that comprise two non K-edge basis materials and N K-edge contrast agents. N comprises an integer greater than or equal to 1.
摘要翻译：示例中的诊断成像系统包括高频电磁能源，检测器，数据采集系统（DAS）和计算机。高频电磁能源向待成像对象发射高频电磁能束，并由系统解决。检测器接收高频电磁能源发出的高频电磁能。 DAS可操作地连接到检测器。计算机可操作地连接到DAS并被编程为采用反演台或功能来将不同入射光谱下的N + 2个测量的投影转换为包含两个非K边缘基础材料的N + 2材料的材料特定积分，并且N K- 边缘造影剂。 N包括大于或等于1的整数。

8. 发明授权

US07599465B2 Detection of thrombi in CT using energy discrimination 失效
标题翻译：使用能量鉴别检测CT中的血栓
公开(公告)号：US07599465B2
公开(公告)日：2009-10-06
申请号：US11692086
申请日：2007-03-27
申请人： Deborah Joy Walter , Yanfeng Du , Kelly Lynn Piacsek
发明人： Deborah Joy Walter , Yanfeng Du , Kelly Lynn Piacsek
IPC分类号： A61B6/00
CPC分类号： A61B6/405 , A61B6/032 , A61B6/4035 , A61B6/4042 , A61B6/4241 , A61B6/481 , A61B6/482 , A61B6/504 , A61B6/583 , G06T7/0012 , G06T7/136 , G06T2207/10081 , G06T2207/30032 , G06T2207/30101
摘要： An imaging scanner includes a radiation source, a radiation detector, and a computer programmed to decompose CT data acquired by the radiation detector into a set of pixels, each pixel having at least a first basis material content and a second basis material content. The computer is further programmed to identify a first subset of the set of pixels as a possible embolism, based on the content of the first basis material and the content of the second basis material.
摘要翻译：成像扫描器包括辐射源，辐射检测器和被编程为将由辐射检测器获取的CT数据分解为一组像素的计算机，每个像素具有至少第一基础材料内容和第二基础材料内容。计算机还被编程为基于第一基础材料的内容和第二基础材料的内容，将该组像素的第一子集识别为可能的栓塞。

9. 发明授权

US07609807B2 CT-Guided system and method for analyzing regions of interest for contraband detection 有权
标题翻译：用于分析违禁品检测感兴趣区域的CT引导系统和方法
公开(公告)号：US07609807B2
公开(公告)日：2009-10-27
申请号：US10779084
申请日：2004-02-17
申请人： William Macomber Leue , Deborah Joy Walter
发明人： William Macomber Leue , Deborah Joy Walter
IPC分类号： G01N23/04
CPC分类号： G01V5/0016 , G01V5/005
摘要： A system and method for ascertaining the identity of an object within an enclosed article. The system includes an acquisition subsystem with a computed tomography machine and an alternate modality subsystem. The alternate modality subsystem includes a detector mounted to a rotatable gantry. The detector may be a quadrupole resonance unit, a dual energy x-ray unit, or a backscatter x-ray unit. The acquisition subsystem analyzes an article and distinguishes regions of interest (may contain contraband) from regions of no interest (do not contain contraband). The article is then transported to the alternate modality subsystem at which the detector further analyzes just the regions of interest.
摘要翻译：用于确定封闭物品内物体的身份的系统和方法。该系统包括具有计算机断层摄影机和备选模态子系统的采集子系统。替代模态子系统包括安装到可旋转机架的检测器。检测器可以是四极共振单元，双能X射线单元或后向散射X射线单元。收购子系统分析一篇文章，并将不感兴趣的区域（不含违禁品）区分出利益区域（可能包含违禁品）。然后将物品运送到交替模式子系统，在该子系统处，检测器进一步分析感兴趣的区域。

10. 发明申请

US20080165920A1 METHOD AND APPARATUS FOR REDUCTION OF METAL ARTIFACTS IN CT IMAGING 失效
标题翻译：用于减少金属成像在CT成像中的方法和装置
公开(公告)号：US20080165920A1
公开(公告)日：2008-07-10
申请号：US11620004
申请日：2007-01-04
申请人： Bruno K. B. De Man , Deborah Joy Walter
发明人： Bruno K. B. De Man , Deborah Joy Walter
IPC分类号： A61B6/03 , G06K9/00
CPC分类号： A61B6/482 , A61B6/4241 , A61B6/4447 , A61B6/5282
摘要： A method and apparatus for reducing artifacts in image data generated by a computed tomography system is provided. The artifacts are due to the presence of a high density object in a subject of interest. CT data is acquired at a number of differing tilt angles. The data is then combined and reconstructed to generate an improved composite image substantially free of artifacts caused by the high density object.
摘要翻译：提供一种用于减少由计算机断层摄影系统产生的图像数据中的伪影的方法和装置。这些人造物是由于感兴趣的对象中存在高密度物体。以多个不同的倾斜角获取CT数据。然后将数据组合和重建，以产生基本上不含由高密度物体引起的假象的改进的合成图像。

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