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.

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。

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。

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。

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。

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。

公开(公告)号：US07916836B2

公开(公告)日：2011-03-29

申请号：US11861826

申请日：2007-09-26

申请人： John Eric Tkaczyk ,  James Wilson Rose ,  Wen Li ,  Jonathan D. Short ,  Yanfeng Du

发明人： John Eric Tkaczyk ,  James Wilson Rose ,  Wen Li ,  Jonathan D. Short ,  Yanfeng Du

IPC分类号： H05G1/64 ,  H01L27/146

CPC分类号： G01T1/249 ,  A61B6/032 ,  G01T1/24

摘要： A CT detector includes a direct conversion material configured to generate electrical charge upon reception of x-rays, a plurality of metallized anodes configured to collect electrical charges generated in the direct conversion material, at least one readout device, and a redistribution layer having a plurality of electrical pathways configured to route the electrical charges from the plurality of metallized anodes to the at least one readout device. A plurality of switches is coupled to the plurality of electrical pathways between the plurality of metallized anodes and the at least one readout device, wherein each of the plurality of switches includes an input line electrically coupled to one of the plurality of metallized anodes, a first output node electrically coupled to the at least one readout device, and a second output node electrically coupled to at least one other switch of the plurality of switches.

摘要翻译： CT检测器包括被配置为在接收X射线时产生电荷的直接转换材料，被配置为收集在直接转换材料中产生的电荷的多个金属化阳极，至少一个读出装置和具有多个 电路被配置为将电荷从多个金属化阳极路由到至少一个读出装置。 多个开关耦合到多个金属化阳极与至少一个读出装置之间的多个电路径，其中多个开关中的每一个包括电耦合到多个金属化阳极之一的输入线，第一 电耦合到所述至少一个读出装置的第二输出节点，以及电耦合到所述多个开关中的至少一个其他开关的第二输出节点。

公开(公告)号：US07606346B2

公开(公告)日：2009-10-20

申请号：US11619990

申请日：2007-01-04

申请人： John Eric Tkaczyk ,  Jonathan D. Short ,  Yanfeng Du ,  James Wilson Rose ,  Charles G. Woychik

发明人： John Eric Tkaczyk ,  Jonathan D. Short ,  Yanfeng Du ,  James Wilson Rose ,  Charles G. Woychik

IPC分类号： H05G1/64 ,  G01T1/20 ,  G01T1/24

CPC分类号： A61B6/032 ,  A61B6/4291 ,  A61B6/482

摘要： A detector module for a CT imaging system is provided. The detector module includes a sensor element to convert x-rays to electrical signals. The sensor element is coupled to a data acquisition system (DAS) via an interconnect system, the DAS comprised of an electronic substrate and an integrated circuit. The interconnect system couples the sensor element, electronic substrate, and integrated circuit by way of a contact pad interconnect together with a wire bond interconnect or an additional contact pad interconnect.

摘要翻译： 提供了用于CT成像系统的检测器模块。 检测器模块包括用于将x射线转换成电信号的传感器元件。 传感器元件经由互连系统耦合到数据采集系统（DAS），DAS由电子基板和集成电路组成。 互连系统通过接触焊盘互连与引线接合互连或附加接触焊盘互连将传感器元件，电子基板和集成电路耦合。

公开(公告)号：US20090129538A1

公开(公告)日：2009-05-21

申请号：US11941175

申请日：2007-11-16

申请人： John Eric Tkaczyk ,  Jonathan D. Short ,  Yanfeng Du ,  Wen Li ,  Xiaoye Wu

发明人： John Eric Tkaczyk ,  Jonathan D. Short ,  Yanfeng Du ,  Wen Li ,  Xiaoye Wu

IPC分类号： A61B6/00 ,  G01T1/20

CPC分类号： G01T1/20 ,  A61B6/032 ,  A61B6/4241 ,  A61B6/482 ,  G01T1/242 ,  G01T1/249

摘要： A diagnostic imaging system includes an x-ray source that emits a beam of x-ray energy toward an object to be imaged and an energy discriminating (ED) detector that receives the x-ray energy emitted by the x-ray energy source. The ED detector includes a first layer having a first thickness, wherein the first layer comprises a semiconductor configurable to operate in at least an integrating mode and a second layer having a second thickness greater than the first thickness, and configured to receive x-rays that pass through the first layer. The system further includes a data acquisition system (DAS) operably connected to the ED detector and a computer that is operably connected to the DAS. The computer is programmed to identify saturated data in the second layer and substitute the saturated data with non-saturated data from a corresponding pixel in the first layer.

摘要翻译： 诊断成像系统包括向待成像对象发射X射线能量束的x射线源和接收由x射线能量源发射的x射线能量的能量鉴别（ED）检测器。 ED检测器包括具有第一厚度的第一层，其中第一层包括可配置成至少以积分模式操作的半导体和具有大于第一厚度的第二厚度的第二层，并且被配置为接收x射线， 通过第一层。 该系统还包括可操作地连接到ED检测器的数据采集系统（DAS）和可操作地连接到DAS的计算机。 计算机被编程为识别第二层中的饱和数据，并用来自第一层中的对应像素的非饱和数据替换饱和数据。

公开(公告)号：US07388534B2

公开(公告)日：2008-06-17

申请号：US11458713

申请日：2006-07-20

申请人： Oliver Richard Astley ,  John Eric Tkaczyk ,  Naresh Kesavan Rao ,  James Walter LeBlanc ,  Wen Li ,  Yanfeng Du

发明人： Oliver Richard Astley ,  John Eric Tkaczyk ,  Naresh Kesavan Rao ,  James Walter LeBlanc ,  Wen Li ,  Yanfeng Du

IPC分类号： H03M1/12

CPC分类号： G01T1/17

摘要： An adaptive data acquisition circuit (26) includes an amplifier (14) for amplifying electrical pulses generated by a detector (12) responsive to energy incident at the detector. The adaptive data acquisition circuit also includes a counting circuit (28) for counting amplified electrical pulses generated by the amplifier. In addition, the adaptive data acquisition circuit includes a digital logic circuit (30) for determining a pulse parameter indicative of a pulse rate and an amount of energy present in the amplified electrical pulses and for generating a control signal (34) responsive to the pulse parameter for controlling an operating parameter of the data acquisition circuit.

摘要翻译： 自适应数据采集电路（26）包括放大器（14），用于响应于在检测器处入射的能量放大由检测器（12）产生的电脉冲。 自适应数据采集电路还包括用于对由放大器产生的放大电脉冲进行计数的计数电路（28）。 另外，自适应数据采集电路包括数字逻辑电路（30），用于确定指示放大的电脉冲中存在的脉冲速率和能量的脉冲参数，并产生响应脉冲的控制信号（34） 用于控制数据采集电路的工作参数的参数。