公开(公告)号：US20040247069A1

公开(公告)日：2004-12-09

申请号：US10834519

申请日：2004-04-29

申请人： J. Morita Manufacturing Corporation

发明人： Yoshinori Arai ,  Masato Wada ,  Masakazu Suzuki ,  Hideki Yoshikawa ,  Takahiro Yoshimura

IPC分类号： G01N023/00 ,  G21K001/12 ,  A61B006/00

CPC分类号： A61B6/469 ,  A61B6/032 ,  A61B6/14 ,  A61B6/4441 ,  A61B6/488 ,  A61B6/548 ,  A61B6/588 ,  A61B6/589 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/612

摘要： An X-ray computer tomography apparatus wherein a conical X-ray beam is radiated on a local area of an object while a rotary means with an X-ray generator and a two-dimensional X-ray image sensor faced to each other is rotated relative to the object which is disposed between the X-ray generator and the two-dimensional X-ray image sensor. The X-ray computer tomography apparatus comprises a preliminary imaging means for imaging the object under plural positional conditions wherein positional relations among the X-ray generator, the object and the two-dimensional X-ray image sensor are varied, a processing means for obtaining a three dimensional position of a target region of the object by calculating a two-dimensional positional data of a target region of the object which is determined on plural fluoroscopic images obtained by the preliminary imaging means, a position adjustment means for controlling the positional relation among the X-ray generator, the object and the two-dimensional X-ray image sensor in such a manner that the rotary center comes to the three dimensional position obtained by the processing means; and a main imaging means for obtaining a sectional image of the object while the rotary means and the object are relatively rotated after adjusting by the position adjustment means.

摘要翻译： 一种X射线计算机断层摄影装置，其中将具有X射线发生器和二维X射线图像传感器的旋转装置彼此面对的圆锥形X射线束照射在物体的局部区域上相对旋转 涉及设置在X射线发生器和二维X射线图像传感器之间的物体。 X射线计算机断层摄影装置包括：初步成像装置，用于在X射线发生器，物体和二维X射线图像传感器之间的位置关系改变的多个位置条件下成像物体;处理装置，用于获得 通过计算由预备成像装置获得的多个透视图像上确定的对象的目标区域的二维位置数据，来计算对象的目标区域的三维位置;位置调整装置， X射线发生器，物体和二维X射线图像传感器，使得旋转中心进入由处理装置获得的三维位置; 以及主要成像装置，用于在通过位置调整装置调节之后，在旋转装置和物体相对旋转的同时获得物体的截面图像。

公开(公告)号：US20030215051A1

公开(公告)日：2003-11-20

申请号：US10424043

申请日：2003-04-24

申请人： J. Morita Manufacturing Corporation

发明人： Masakazu Suzuki

IPC分类号： G21K001/12

CPC分类号： A61B6/0478 ,  A61B5/11 ,  A61B6/14 ,  A61B6/527 ,  A61B6/548 ,  A61B2562/0219

摘要： A blur compensation apparatus for X-ray image of an object to be examined used for a medical X-ray imaging apparatus, which has an X-ray generator and an X-ray imaging device opposite to the X-ray generator, said X-ray generator and said X-ray imaging device interposing therebetween said object held by an object holding means, wherein a sensor means for detecting blur movement of said object is provided near an objective projection position on said object holding means, and wherein a blur compensation process is executed for the X-ray image obtained by said X-ray imaging device, based on a positional change information which is calculated from a detection signal detected by said sensor means during X-ray radiography, said positional change information being the positional change amount with respect to said objective projection position relative to a reference position previously specified on said object holding means.

摘要翻译： 所述X射线摄像装置具有与X射线发生器相对的X射线发生器和X射线摄像装置的医疗用X射线摄像装置的X射线图像的X射线图像的模糊补偿装置， 射线发生器和所述X射线成像装置之间插入由物体保持装置保持的所述物体之间，其中用于检测所述物体的模糊运动的传感器装置设置在所述物体保持装置上的物镜投影位置附近，并且其中模糊补偿处理 执行由所述X射线摄像装置得到的X射线图像，根据在X射线摄影中由所述传感器装置检测出的检测信号计算的位置变化信息，所述位置变化信息是位置变化量 相对于所述目标投影位置相对于先前在所述物体保持装置上指定的基准位置。