公开(公告)号：US20070003006A1

公开(公告)日：2007-01-04

申请号：US11171169

申请日：2005-06-29

申请人： John Tkaczyk ,  James Leblanc ,  Wen Li ,  Deborah Walter ,  Yanfeng Du

发明人： John Tkaczyk ,  James Leblanc ,  Wen Li ,  Deborah Walter ,  Yanfeng Du

IPC分类号： H05G1/60 ,  A61B6/00 ,  G01N23/00 ,  G21K1/12

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.

公开(公告)号：US20070076848A1

公开(公告)日：2007-04-05

申请号：US11239962

申请日：2005-09-30

申请人： Deborah Walter ,  John Tkaczyk ,  Yanfeng Du

发明人： Deborah Walter ,  John Tkaczyk ,  Yanfeng Du

IPC分类号： H05G1/64

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.

摘要翻译： 呈现扫描被摄体的方法。 该方法包括从像素的第一区域获取投影数据，其中第一区域具有第一区域。 另外，该方法包括从像素的第二区域获取投影数据，其中第二区域具有第二区域。 该方法还包括组合来自第一和第二区域的投影数据以获得像素的复合投影数据。 计算机可读介质和提供由该方法定义的类型的功能的系统也结合本技术考虑。

公开(公告)号：US20070076842A1

公开(公告)日：2007-04-05

申请号：US11239842

申请日：2005-09-30

申请人： John Tkaczyk ,  Deborah Walter ,  Yanfeng Du ,  David Hoffman ,  Thomas Toth

发明人： John Tkaczyk ,  Deborah Walter ,  Yanfeng Du ,  David Hoffman ,  Thomas Toth

IPC分类号： H05G1/60 ,  H05G1/44 ,  A61B6/00 ,  G01N23/00 ,  G21K1/12

CPC分类号： A61B6/032 ,  A61B6/4035 ,  A61B6/4042 ,  A61B6/405 ,  A61B6/4085 ,  A61B6/4241 ,  A61B6/463 ,  A61B6/466 ,  A61B6/469 ,  A61B6/482 ,  A61B6/488 ,  A61B6/503 ,  A61B6/504 ,  A61B6/544

摘要： A method of enhancing image quality and providing tissue composition information by analysis of energy discrimination data, the method comprising determining a radiation dosage at one or more energy spectrum levels based on patient parameters and user selected parameters. Computer-readable medium and systems that afford functionality of the type defined by this method are also contemplated in conjunction with the present technique.

摘要翻译： 一种通过分析能量鉴别数据来增强图像质量和提供组织组成信息的方法，所述方法包括基于患者参数和用户选择的参数来确定一个或多个能量级别的辐射剂量。 计算机可读介质和提供由该方法定义的类型的功能的系统也结合本技术考虑。

公开(公告)号：US20080304618A1

公开(公告)日：2008-12-11

申请号：US12194072

申请日：2008-08-19

申请人： David M. Hoffman ,  James LeBlanc ,  John Tkaczyk ,  Robert F. Senzig ,  Yanfeng Du

发明人： David M. Hoffman ,  James LeBlanc ,  John Tkaczyk ,  Robert F. Senzig ,  Yanfeng Du

IPC分类号： A61B6/00

CPC分类号： G01T1/2928 ,  A61B6/032 ,  A61B6/4241 ,  A61B6/5205

摘要： A CT detector capable of energy discrimination and direct conversion is disclosed. The detector includes multiple layers of semiconductor material with the layers having varying thicknesses. The detector is constructed to be segmented in the x-ray penetration direction so as to optimize count rate performance as well as avoid saturation. The detector also includes variable pixel pitch and a flexible binning of pixels to further enhance count rate performance.

摘要翻译： 公开了能够鉴别和直接转换的CT检测器。 检测器包括多层半导体材料，其中层具有变化的厚度。 检测器被构造成在x射线穿透方向上分段，以便优化计数率性能以及避免饱和。 检测器还包括可变像素间距和灵活的像素分组，以进一步提高计数率性能。

公开(公告)号：US20070206722A1

公开(公告)日：2007-09-06

申请号：US11745856

申请日：2007-05-08

申请人： David Hoffman ,  James LeBlanc ,  John Tkaczyk ,  Robert Senzig ,  Yanfeng Du

发明人： David Hoffman ,  James LeBlanc ,  John Tkaczyk ,  Robert Senzig ,  Yanfeng Du

IPC分类号： G01N23/083 ,  G01T1/16

CPC分类号： G01T1/2928 ,  A61B6/032 ,  A61B6/4241 ,  A61B6/5205

摘要： A CT detector capable of energy discrimination and direct conversion is disclosed. The detector includes multiple layers of semiconductor material with the layers having varying thicknesses. The detector is constructed to be segmented in the x-ray penetration direction so as to optimize count rate performance as well as avoid saturation. The detector also includes variable pixel pitch and a flexible binning of pixels to further enhance count rate performance.

公开(公告)号：US20070140418A1

公开(公告)日：2007-06-21

申请号：US11677963

申请日：2007-02-22

申请人： David Hoffman ,  James LeBlanc ,  John Tkaczyk ,  Robert Senzig ,  Yanfeng Du

发明人： David Hoffman ,  James LeBlanc ,  John Tkaczyk ,  Robert Senzig ,  Yanfeng Du

IPC分类号： H05G1/60 ,  A61B6/00 ,  G01N23/00 ,  G21K1/12

CPC分类号： G01T1/2928 ,  A61B6/032 ,  A61B6/4241 ,  A61B6/5205

摘要： A CT detector capable of energy discrimination and direct conversion is disclosed. The detector includes multiple layers of semiconductor material with the layers having varying thicknesses. The detector is constructed to be segmented in the x-ray penetration direction so as to optimize count rate performance as well as avoid saturation. The detector also includes variable pixel pitch and a flexible binning of pixels to further enhance count rate performance.

公开(公告)号：US20070248209A1

公开(公告)日：2007-10-25

申请号：US11768775

申请日：2007-06-26

申请人： David Hoffman ,  James LeBlanc ,  John Tkaczyk ,  Robert Senzig ,  Yanfeng Du

发明人： David Hoffman ,  James LeBlanc ,  John Tkaczyk ,  Robert Senzig ,  Yanfeng Du

IPC分类号： G01N23/00

CPC分类号： G01T1/2928 ,  A61B6/032 ,  A61B6/4241 ,  A61B6/5205

摘要： A CT detector capable of energy discrimination and direct conversion is disclosed. The detector includes multiple layers of semiconductor material with the layers having varying thicknesses. The detector is constructed to be segmented in the x-ray penetration direction so as to optimize count rate performance as well as avoid saturation. The detector also includes variable pixel pitch and a flexible binning of pixels to further enhance count rate performance.

摘要翻译： 公开了能够鉴别和直接转换的CT检测器。 检测器包括多层半导体材料，其中层具有变化的厚度。 检测器被构造成在x射线穿透方向上分段，以便优化计数率性能以及避免饱和。 检测器还包括可变像素间距和灵活的像素分组，以进一步提高计数率性能。

公开(公告)号：US20060056581A1

公开(公告)日：2006-03-16

申请号：US10939787

申请日：2004-09-13

申请人： David Hoffman ,  James LeBlanc ,  John Tkaczyk ,  Robert Senzig ,  Yanfeng Du

发明人： David Hoffman ,  James LeBlanc ,  John Tkaczyk ,  Robert Senzig ,  Yanfeng Du

IPC分类号： H05G1/60 ,  A61B6/00

CPC分类号： G01T1/2928 ,  A61B6/032 ,  A61B6/4241 ,  A61B6/5205

摘要： A CT detector capable of energy discrimination and direct conversion is disclosed. The detector includes multiple layers of semiconductor material with the layers having varying thicknesses. The detector is constructed to be segmented in the x-ray penetration direction so as to optimize count rate performance as well as avoid saturation. The detector also includes variable pixel pitch and a flexible binning of pixels to further enhance count rate performance.

公开(公告)号：US20050084069A1

公开(公告)日：2005-04-21

申请号：US10687131

申请日：2003-10-16

申请人： Yanfeng Du ,  John Tkaczyk

发明人： Yanfeng Du ,  John Tkaczyk

IPC分类号： A61B6/00 ,  A61B6/03 ,  H05G1/64

CPC分类号： A61B6/583 ,  A61B6/032 ,  A61B6/4035 ,  A61B6/405 ,  A61B6/482

摘要： A method for analyzing materials in an object includes acquiring x-ray projection data of the object at high energy and at low energy for a plurality of views. The acquired x-ray projection data is utilized in a material decomposition to determine material densities at each pixel for two selected basis materials. A composition of an object at each pixel is determined utilizing a determined mapping of material density regions for the two selected basis materials. An image indicative of the composition of the object is displayed utilizing the determined composition.

摘要翻译： 用于分析对象中的材料的方法包括以高能量和低能量获取多个视图的物体的X射线投影数据。 所获取的X射线投影数据用于材料分解以确定两个所选基础材料的每个像素处的材料密度。 使用所选择的两种材料的材料密度区域的确定的映射来确定每个像素处的对象的组成。 使用所确定的构图来显示表示对象的构图的图像。

公开(公告)号：US07260174B2

公开(公告)日：2007-08-21

申请号：US10939787

申请日：2004-09-13

申请人： David M. Hoffman ,  James LeBlanc ,  John Tkaczyk ,  Robert F. Senzig ,  Yanfeng Du

发明人： David M. Hoffman ,  James LeBlanc ,  John Tkaczyk ,  Robert F. Senzig ,  Yanfeng Du

IPC分类号： A61B6/03 ,  G01T1/161

CPC分类号： G01T1/2928 ,  A61B6/032 ,  A61B6/4241 ,  A61B6/5205

摘要： A CT detector capable of energy discrimination and direct conversion is disclosed. The detector includes multiple layers of semiconductor material with the layers having varying thicknesses. The detector is constructed to be segmented in the x-ray penetration direction so as to optimize count rate performance as well as avoid saturation. The detector also includes variable pixel pitch and a flexible binning of pixels to further enhance count rate performance.

摘要翻译： 公开了能够鉴别和直接转换的CT检测器。 检测器包括多层半导体材料，其中层具有变化的厚度。 检测器被构造成在x射线穿透方向上分段，以便优化计数率性能以及避免饱和。 检测器还包括可变像素间距和灵活的像素分组，以进一步提高计数率性能。