利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

21 条记录 (耗时 0.036 秒)

    Apparatus and method for hybrid computed tomography imaging
    2.
    发明申请
    Apparatus and method for hybrid computed tomography imaging 审中-公开
    混合计算机断层成像的装置和方法

    公开(公告)号：US20070205367A1

    公开(公告)日：2007-09-06

    申请号：US11365791

    申请日：2006-03-01

    申请人： Bruno Deman ,  Peter Edic ,  James Leblanc ,  John Tkaczyk ,  Jonathan Short

    发明人： Bruno Deman ,  Peter Edic ,  James Leblanc ,  John Tkaczyk ,  Jonathan Short

    IPC分类号： G01T1/161

    CPC分类号： G01T1/2985 ,  A61B6/032 ,  A61B6/4241 ,  A61B6/482 ,  A61B6/5205

    摘要： A system is presented. The system includes a plurality of energy integrating detector elements configured to acquire energy integrating data. Further, the system includes a plurality of energy discriminating detector elements configured to acquire energy discriminating data, where the plurality of energy integrating detector elements and the plurality of energy discriminating detector elements are arranged in a spatial relationship to form a hybrid detector, and where the plurality of energy integrating detector elements and the plurality of energy discriminating detector elements are configured to obtain respective sets of energy integrating data and energy discriminating data for use in generating an image.

    摘要翻译： 提出了一个系统。 该系统包括被配置为获取能量积分数据的多个能量积分检测器元件。 此外，该系统包括多个能量鉴别检测器元件，其被配置为获取能量鉴别数据，其中多个能量积分检测器元件和多个能量鉴别检测器元件以空间关系排列以形成混合检测器，并且其中 多个能量积分检测器元件和多个能量鉴别检测器元件被配置为获得积分数据的能量集合和用于生成图像的能量鉴别数据。

    PHOTON COUNTING X-RAY DETECTOR WITH OVERRANGE LOGIC CONTROL
    3.
    发明申请
    PHOTON COUNTING X-RAY DETECTOR WITH OVERRANGE LOGIC CONTROL 有权
    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。

    METHOD AND SYSTEM OF CT DATA CORRECTION
    4.
    发明申请
    METHOD AND SYSTEM OF CT DATA CORRECTION 有权
    CT数据校正方法与系统

    公开(公告)号：US20060109950A1

    公开(公告)日：2006-05-25

    申请号：US10904736

    申请日：2004-11-24

    申请人： Jerome Arenson ,  John Tkaczyk ,  David Ruimi ,  Oded Meirav ,  Evgeny Drapkin ,  Dmitry Samsonov ,  Lev Greenberg ,  Bruno De Man ,  Samit Basu ,  Xiaoye Wu ,  Yangeng Du

    发明人： Jerome Arenson ,  John Tkaczyk ,  David Ruimi ,  Oded Meirav ,  Evgeny Drapkin ,  Dmitry Samsonov ,  Lev Greenberg ,  Bruno De Man ,  Samit Basu ,  Xiaoye Wu ,  Yangeng Du

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

    CPC分类号： G01T1/1644 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4241 ,  A61B6/482 ,  A61B6/583 ,  G01T1/1647 ,  G06T5/002 ,  G06T5/20 ,  G06T2207/10081 ,  G06T2207/30004 ,  G06T2207/30112 ,  Y10S378/901

    摘要： An adaptive CT data acquisition system and technique is presented whereby radiation emitted for CT data acquisition is dynamically controlled to limit exposure to those detectors of a CT detector assembly that may be particularly susceptible to saturation during a given data acquisition. The data acquisition technique recognizes that for a given subject size and position that pre-subject filtering and collimating of a radiation beam may be insufficient to completely prevent detector saturation. Therefore, the present invention includes implementation of a number of CT data correction techniques for correcting otherwise unusable data of a saturated CT detector. These data correction techniques include a nearest neighbor correction, off-centered phantom correction, off-centered synthetic data correction, scout data correction, planar radiogram correction, and a number of others. The invention is applicable with energy discriminating CT systems as well as with conventional CT systems and other multi-energy CT systems, such as dual kVp-based systems.

    摘要翻译： 提出了一种自适应CT数据采集系统和技术，其中动态地控制用于CT数据采集的辐射，以限制在给定数据采集期间可能特别容易饱和的CT检测器组件的那些检测器的暴露。 数据采集​​技术认识到，对于给定的主体大小和位置，预辐射滤波和辐射束的准直可能不足以完全防止检测器饱和。 因此，本发明包括实现用于校正饱和CT检测器的其他不可用数据的多个CT数据校正技术。 这些数据校正技术包括最近邻校正，偏心幻像校正，偏心合成数据校正，侦察数据校正，平面放射线图校正以及其他数目。 本发明适用于能量识别CT系统以及常规CT系统和其他多能CT系统，例如基于双kVp的系统。