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    X-ray computer tomography apparatus including a pair of separably movable collimators
    3.
    发明授权
    X-ray computer tomography apparatus including a pair of separably movable collimators 有权
    X射线计算机断层摄影装置包括一对可分离的准直仪

    公开(公告)号：US08094775B2

    公开(公告)日：2012-01-10

    申请号：US12553594

    申请日：2009-09-03

    申请人： Yasuhiro Noshi ,  Yasuo Saito ,  Manabu Hiraoka ,  Tatsuo Maeda

    发明人： Yasuhiro Noshi ,  Yasuo Saito ,  Manabu Hiraoka ,  Tatsuo Maeda

    IPC分类号： A61B6/03 ,  G21K1/04

    CPC分类号： A61B6/06 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4021

    摘要： An X-ray computer tomography apparatus includes an X-ray tube, a two-dimensional array type X-ray detector, a rotating mechanism, a pair of collimators, a collimator moving mechanism which separately moves the pair of collimators in a direction almost parallel to a rotation axis, a reconstruction processing unit which reconstructs image data in a reconstruction range, and a collimator control unit. The collimator control unit controls the position of each collimator in accordance with the distance between an X-ray central plane corresponding to a cone angle 0° and an end face of the reconstruction range. The collimator moving mechanism moves each of the pair of collimators in the range from the outermost position corresponding to the maximum cone angle to the innermost position offset from a position corresponding to a cone angle of nearly 0° to the opposite side.

    摘要翻译： X射线计算机断层摄影装置包括X射线管，二维阵列型X射线检测器，旋转机构，一对准直仪，准直仪移动机构，其将该对准直仪分开地沿大致平行的方向移动 重建在重建范围内的图像数据的重建处理单元和准直器控制单元。 准直仪控制单元根据与锥角0°对应的X射线中心面与重建范围的端面之间的距离来控制每个准直仪的位置。 准直器移动机构将对应于最大锥角的最外侧位置的范围内的一对准直仪的每一个移动到与对应于相对于近似0°的锥角的位置偏移的最内侧位置。

    X-RAY COMPUTER TOMOGRAPHY APPARATUS
    4.
    发明申请
    X-RAY COMPUTER TOMOGRAPHY APPARATUS 有权
    X射线计算机图形设备

    公开(公告)号：US20100054395A1

    公开(公告)日：2010-03-04

    申请号：US12553594

    申请日：2009-09-03

    申请人： Yasuhiro Noshi ,  Yasuo Saito ,  Manabu Hiraoka ,  Tatsuo Maeda

    发明人： Yasuhiro Noshi ,  Yasuo Saito ,  Manabu Hiraoka ,  Tatsuo Maeda

    IPC分类号： H05G1/30

    CPC分类号： A61B6/06 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4021

    摘要： An X-ray computer tomography apparatus includes an X-ray tube, a two-dimensional array type X-ray detector, a rotating mechanism, a pair of collimators, a collimator moving mechanism which separately moves the pair of collimators in a direction almost parallel to a rotation axis, a reconstruction processing unit which reconstructs image data in a reconstruction range, and a collimator control unit. The collimator control unit controls the position of each collimator in accordance with the distance between an X-ray central plane corresponding to a cone angle 0° and an end face of the reconstruction range. The collimator moving mechanism moves each of the pair of collimators in the range from the outermost position corresponding to the maximum cone angle to the innermost position offset from a position corresponding to a cone angle of nearly 0° to the opposite side.

    摘要翻译： X射线计算机断层摄影装置包括X射线管，二维阵列型X射线检测器，旋转机构，一对准直仪，准直仪移动机构，其将该对准直仪分开地沿大致平行的方向移动 重建在重建范围内的图像数据的重建处理单元和准直器控制单元。 准直仪控制单元根据与锥角0°对应的X射线中心面与重建范围的端面之间的距离来控制每个准直仪的位置。 准直器移动机构将对应于最大锥角的最外侧位置的范围内的一对准直仪的每一个移动到与对应于相对于近似0°的锥角的位置偏移的最内侧位置。