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21. 发明授权

US07129498B2 Compact structural CT detector module 失效
标题翻译：紧凑型结构CT检测器模块
公开(公告)号：US07129498B2
公开(公告)日：2006-10-31
申请号：US10668581
申请日：2003-09-23
申请人： David M. Hoffman
发明人： David M. Hoffman
IPC分类号： G01N23/083 , G01T1/20 , G01T1/24 , H01L25/065 , H01L27/146
CPC分类号： G01T1/2928 , G01T1/166
摘要： This invention relates generally to a system for differentiating material characteristics using a Computed Tomography imaging system. More particularly, it relates to a detector module for use with a hybrid-scintillator/photo sensor and direct conversion imaging system comprised of an x-ray transparent top layer; an electrode on said top; a block of direct conversion material, the electrode providing a common bias to the direct conversion material; a substrate material electrically connected with the direct conversion material; a signal processing chip electrically connected with the substrate; and a connector element electrically connected to the substrate.
摘要翻译：本发明一般涉及使用计算机断层扫描成像系统来区分材料特性的系统。更具体地说，本发明涉及一种与混合闪烁体/光电传感器一起使用的检测器模块和由x射线透明顶层组成的直接转换成像系统; 所述顶部上的电极; 直接转换材料块，电极为直接转换材料提供共同的偏置; 与所述直接转换材料电连接的基板材料; 与所述基板电连接的信号处理芯片; 以及电连接到所述基板的连接器元件。

22. 发明授权

US07046763B2 Field and factory testable imaging detector 失效
标题翻译：现场和工厂可测试成像检测器
公开(公告)号：US07046763B2
公开(公告)日：2006-05-16
申请号：US10707604
申请日：2003-12-23
申请人： David M. Hoffman
发明人： David M. Hoffman
IPC分类号： H05G1/64
CPC分类号： A61B6/032 , A61B6/58 , A61B6/581 , A61B6/583
摘要： An imaging assembly is provided including an x-ray source and a controller in communication with the x-ray source. A detector assembly is in communication with the controller, and includes a photodetector array in communication with the controller. A scintillator assembly is positioned between the photodetector array and the x-ray source. A collimator assembly is positioned in between the scintillator assembly and the x-ray source. An electroluminescent panel is positioned between the collimator assembly and the scintillator assembly. The electroluminescent panel is in communication with the controller and has an active condition where the electroluminescent panel generates radiation eliciting a response from the detector array.
摘要翻译：提供了一种成像组件，包括x射线源和与x射线源连通的控制器。检测器组件与控制器通信，并且包括与控制器通信的光电检测器阵列。闪烁体组件位于光电检测器阵列和x射线源之间。准直器组件位于闪烁体组件和x射线源之间。电致发光面板位于准直器组件和闪烁体组件之间。电致发光面板与控制器连通并且具有激活状态，其中电致发光面板产生引起来自检测器阵列的响应的辐射。

23. 发明授权

US07046756B2 Rotatable filter for a pre-subject CT collimator having multiple filtering profiles 失效
标题翻译：用于具有多个过滤轮廓的前主题CT准直仪的可旋转过滤器
公开(公告)号：US07046756B2
公开(公告)日：2006-05-16
申请号：US10249933
申请日：2003-05-20
申请人： David M. Hoffman
发明人： David M. Hoffman
IPC分类号： G21K3/00
CPC分类号： A61B6/032 , A61B6/4035 , G21K1/10
摘要： The present invention is directed to a method and apparatus for CT data acquisition using a rotatable pre-subject filter having more than one filtering profile to control radiation exposure to a subject. The filter has one profile used to filter radiation when the radiation source is positioned above a subject and another profile that is used to filter radiation when the radiation source is positioned at a side of the subject.
摘要翻译：本发明涉及一种用于使用具有多于一个滤波轮廓的可旋转的预受检过滤器来控制对受试者的辐射照射的CT数据采集的方法和装置。当辐射源位于受试者上方时，该过滤器具有用于过滤辐射的一个轮廓，当辐射源位于受试者侧面时，该轮廓用于过滤辐射。

24. 发明授权

US06968030B2 Method and apparatus for presenting multiple pre-subject filtering profiles during CT data acquisition 有权
标题翻译：用于在CT数据采集期间呈现多个预受检者过滤轮廓的方法和装置
公开(公告)号：US06968030B2
公开(公告)日：2005-11-22
申请号：US10249931
申请日：2003-05-20
申请人： David M. Hoffman
发明人： David M. Hoffman
IPC分类号： A61B6/03 , G21K1/02 , G21K3/00
CPC分类号： A61B6/032 , A61B6/4035 , G21K1/02
摘要： The present invention is directed to a method and apparatus for CT data acquisition using a rotatable pre-subject filter having more than one filtering profile to control radiation exposure to a subject. The filter is caused to rotate by a motor and bearing assembly and has one profile used to filter radiation when the radiation source is positioned above a subject and another profile that is used to filter radiation when the radiation source is positioned at a side of the subject.
摘要翻译：本发明涉及一种用于使用具有多于一个滤波轮廓的可旋转的预受检过滤器来控制对受试者的辐射照射的CT数据采集的方法和装置。通过电动机和轴承组件使过滤器旋转，并且当辐射源位于被摄体上方时具有用于过滤辐射的一个轮廓，并且当辐射源位于被摄体的一侧时用于过滤辐射的另一轮廓。

25. 发明授权

US06933504B2 CT detector having a segmented optical coupler and method of manufacturing same 失效
标题翻译： CT检测器具有分段光耦合器及其制造方法
公开(公告)号：US06933504B2
公开(公告)日：2005-08-23
申请号：US10249052
申请日：2003-03-12
申请人： David M. Hoffman , Michael F. Hoge
发明人： David M. Hoffman , Michael F. Hoge
IPC分类号： A61B6/03 , G01T1/20 , H01L31/09 , G01T1/24
CPC分类号： G01T1/2018 , A61B6/032 , A61B6/4291 , G01N23/046 , G01N2223/419 , G01N2223/612 , G01T1/2002 , G01T1/202 , G01T1/2985
摘要： The present invention is a directed to a CT detector for a CT imaging system that incorporates a segmented optical coupler between a photodiode array and a scintillator array. The segmented optical coupler also operates as a light collimator which improves the light collection efficiency of the photodiode array. The segmented optical coupler is defined by a series of reflector elements that collectively form a plurality of open cells. The open cells form light transmission cavities and facilitate the collimation of light from a scintillator to a photodiode. The cavities may be filled with optical epoxy for sealing to the photodiode array.
摘要翻译：本发明涉及一种用于CT成像系统的CT检测器，其中包括光电二极管阵列和闪烁体阵列之间的分段光耦合器。分段光耦合器还用作光准直器，其提高了光电二极管阵列的光收集效率。分段光耦合器由共同形成多个开放单元的一系列反射器元件限定。开放的电池形成光透射腔，并促进从闪烁体到光电二极管的准直。空腔可以填充有光学环氧树脂以密封到光电二极管阵列。

26. 发明授权

US06907101B2 CT detector with integrated air gap 失效
标题翻译： CT检测器具有集成气隙
公开(公告)号：US06907101B2
公开(公告)日：2005-06-14
申请号：US10248929
申请日：2003-03-03
申请人： David M. Hoffman
发明人： David M. Hoffman
IPC分类号： G01T1/20 , A61B6/03 , A61B6/08 , G01N23/00 , G01T1/29 , G21K1/12 , H04N5/32 , H05G1/64
CPC分类号： G01T1/2002 , G01T1/2985
摘要： The present invention is directed to an improved CT detector scintillator to photodiode optical coupling. The CT detector utilizes a controlled air gap between the photodiode array and the scintillator array together with an anti-reflective layer on the scintillator array. To improve the absorption of light at the photodiode array, the photodiode array includes a textured light reception surface. By incorporating a textured layer with the photodiode array, the light collection efficiency of the photodiodes is improved. The textured layer may extend along an x- and/or z-axis and the texturing may be in different forms. For example, the textured layer may include a series of pyramidally-shaped protrusions.
摘要翻译：本发明涉及一种改进的CT检测器闪烁体到光电二极管光耦合。 CT检测器利用光电二极管阵列和闪烁体阵列之间的受控空气间隙以及闪烁体阵列上的抗反射层。为了改善在光电二极管阵列处的光的吸收，光电二极管阵列包括纹理的光接收表面。通过结合具有光电二极管阵列的纹理层，光电二极管的光收集效率提高。纹理化层可以沿x轴和/或z轴延伸，并且纹理化可以是不同的形式。例如，纹理化层可以包括一系列棱锥形突起。

27. 发明授权

US06859514B2 CT detector array with uniform cross-talk 失效
标题翻译： CT检测器阵列具有均匀的串扰
公开(公告)号：US06859514B2
公开(公告)日：2005-02-22
申请号：US10249092
申请日：2003-03-14
申请人： David M. Hoffman
发明人： David M. Hoffman
IPC分类号： A61B6/03 , G01T1/20 , A61B6/00 , G01T1/24
CPC分类号： G01T1/2018 , A61B6/032 , A61B6/4411
摘要： The present invention is directed to a CT detector array having uniform cross-talk. Discontinuities in cross-talk between adjacent CT detectors of a CT detector array are minimized by increasing the cross-talk at the boundaries of adjacent CT detectors. Discontinuities throughout a CT detector contribute to artifact presence in a final reconstructed image, therefore, it is preferred that cross-talk throughout the CT detector array be relatively uniform. Reducing the width of reflector material between adjacent CT detectors increases the cross-talk between the CT detectors. This increase in cross-talk offsets the reduced cross-talk that typically occurs between scintillators, optical epoxy layers, and photodiodes at the CT detector interface. Cross-talk may also be increased by reducing the amount of chrome deposited in the reflector between CT detectors or reducing the levels of titanium oxide typically used in reflector layers.
摘要翻译：本发明涉及具有均匀串扰的CT检测器阵列。 CT检测器阵列的相邻CT检测器之间的串扰不连续性通过增加相邻CT检测器边界处的串扰来最小化。 CT检测器中的不连续性有助于最终重构图像中的伪像存在，因此，优选的是，整个CT检测器阵列中的串扰相对均匀。减少相邻CT检测器之间的反射器材料的宽度增加了CT检测器之间的串扰。串扰的这种增加抵消了在CT检测器接口处的闪烁体，光学环氧树脂层和光电二极管之间通常发生的减少的串扰。串扰也可以通过减少沉积在CT检测器之间的反射器中的铬的量来减少通常用于反射器层中的氧化钛的水平而增加。

28. 发明授权

US06704391B2 System and method of aligning scintillator crystalline structures for computed tomography imaging 失效
标题翻译：用于计算机断层摄影成像的闪烁体晶体结构对准的系统和方法
公开(公告)号：US06704391B2
公开(公告)日：2004-03-09
申请号：US10063235
申请日：2002-04-02
申请人： David M. Hoffman , Haochuan Jiang
发明人： David M. Hoffman , Haochuan Jiang
IPC分类号： H05G164
CPC分类号： C30B30/04
摘要： The present invention discloses a method of aligning scintillator crystalline structures for computed tomography imaging and a system of use. Crystal seeds are deposited inside a glass melt and are then grown to form a plurality of layer crystallites. While growing the crystallites, a field is applied to align each crystallite structure in a uniform orientation. As a result, the crystallites are configured to reduce light scattering and improve the overall efficiency of the CT system. A CT system is disclosed implementing a scintillator array having a plurality of scintillators, each scintillator being formed of a plurality of uniformly aligned crystallites. Each crystallite includes a receiving surface and an exiting surface configured perpendicular to an x-ray beam. Further, the receiving surface and the exiting surface are connected by a plurality of surface walls arranged parallel to the x-ray beam.
摘要翻译：本发明公开了一种用于计算层析成像的闪烁体晶体结构和使用系统的对准方法。将晶体种子沉积在玻璃熔体内，然后生长以形成多个层微晶。在生长微晶的同时，施加一个场以使均匀取向的每个微晶结构对准。结果，微晶被配置为减少光散射并提高CT系统的整体效率。公开了一种实现具有多个闪烁体的闪烁体阵列的CT系统，每个闪烁体由多个均匀排列的微晶形成。每个微晶包括接收表面和垂直于x射线束配置的出射表面。此外，接收表面和出射表面通过平行于x射线束布置的多个表面壁连接。

29. 发明授权

US06700948B2 Low-cost, multislice CT detector with multiple operating modes 有权
标题翻译：具有多种工作模式的低成本，多层CT检测器
公开(公告)号：US06700948B2
公开(公告)日：2004-03-02
申请号：US09735008
申请日：2000-12-12
申请人： David M. Hoffman
发明人： David M. Hoffman
IPC分类号： G01N2300
CPC分类号： A61B6/032 , A61B6/4085
摘要： One aspect of the present invention is a detector array for a computed tomographic imaging system having a z-direction corresponding to an image slice thickness direction and that is arc-shaped in a direction transverse to the z-direction. The detector array has a plurality of detector modules configured so that the detector array has active regions of differing thicknesses. This detector array embodiment provides an optimized detector array for certain imaging situations, for example, in cardiac imaging applications in which increased coverage is required only in a relatively small central portion of a field of view.
摘要翻译：本发明的一个方面是用于计算机断层成像系统的检测器阵列，其具有对应于图像切片厚度方向的z方向，并且在横向于z方向的方向上呈弧形。检测器阵列具有多个检测器模块，其被配置成使得检测器阵列具有不同厚度的有源区。该检测器阵列实施例为某些成像情况提供了优化的检测器阵列，例如在仅需要增加覆盖的心脏成像应用中在视场的相对小的中央部分。

30. 发明授权

US06480563B2 System and method of aligning scintillator crystalline structures for computed tomography imaging 失效
标题翻译：用于计算机断层摄影成像的闪烁体晶体结构对准的系统和方法
公开(公告)号：US06480563B2
公开(公告)日：2002-11-12
申请号：US09681067
申请日：2000-12-19
申请人： David M. Hoffman , Haochuan Jiang
发明人： David M. Hoffman , Haochuan Jiang
IPC分类号： A61B600
CPC分类号： C30B30/04
摘要： The present invention discloses a method of aligning scintillator crystalline structures for computed tomography imaging and a system of use. Crystal seeds are deposited inside a glass melt and are then grown to form a plurality of layer crystallites. While growing the crystallites, a field is applied to align each crystallite structure in a uniform orientation. As a result, the crystallites are configured to reduce light scattering and improve the overall efficiency of the CT system. A CT system is disclosed implementing a scintillator array having a plurality of scintillators, each scintillator being formed of a plurality of uniformly aligned crystallites. Each crystallite includes a receiving surface and an exiting surface configured perpendicular to an x-ray beam. Further, the receiving surface and the exiting surface are connected by a plurality of surface walls arranged parallel to the x-ray beam.
摘要翻译：本发明公开了一种用于计算层析成像的闪烁体晶体结构和使用系统的对准方法。将晶体种子沉积在玻璃熔体内，然后生长以形成多个层微晶。在生长微晶的同时，施加一个场以使均匀取向的每个微晶结构对准。结果，微晶被配置为减少光散射并提高CT系统的整体效率。公开了一种实现具有多个闪烁体的闪烁体阵列的CT系统，每个闪烁体由多个均匀排列的微晶形成。每个微晶包括接收表面和垂直于x射线束配置的出射表面。此外，接收表面和出射表面通过平行于x射线束布置的多个表面壁连接。

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