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21. 发明申请

US20070116177A1 Imaging system 有权
标题翻译：成像系统
公开(公告)号：US20070116177A1
公开(公告)日：2007-05-24
申请号：US11545255
申请日：2006-10-10
申请人： Zhiqiang Chen , Li Zhang , Hewei Gao , Kejun Kang , Jianping Cheng , Yuanjing Li , Yinong Liu , Yuxiang Xing , Ziran Zhao , Yongshun Xiao
发明人： Zhiqiang Chen , Li Zhang , Hewei Gao , Kejun Kang , Jianping Cheng , Yuanjing Li , Yinong Liu , Yuxiang Xing , Ziran Zhao , Yongshun Xiao
IPC分类号： G01N23/04
CPC分类号： G01N23/04 , A61B6/027
摘要： It is disclosed an imaging system comprising: radiation generating means including at least one radiation source for generating radiations; data acquiring means including an detector matrix faced the radiation source for obtaining projection data by receiving radiations penetrated through an object to be inspected; transporting means for making the object to be inspected between the radiation source and the detector matrix linearly moving relative to the radiation source and the detector matrix; and controlling and image processing means for controlling the radiation generating means, the data acquiring means and the transporting means, and for reconstructing an image of the object to be inspected from the projection data. The imaging system according to the present invention achieves a real stereoscopic radiography by using straight-line trajectory scan and reconstructing a tomographic or stereoscopic image through a straight-line filtered back-projection algorithm. The present imaging system has advantages of fast examination speed, no rotation, and out of large cone-angle problem in a circular-orbit cone-beam CT.
摘要翻译：公开了一种成像系统，包括：辐射发生装置，其包括用于产生辐射的至少一个辐射源; 数据获取装置，包括面向辐射源的检测器矩阵，用于通过接收穿过待检查对象的辐射来获得投影数据; 用于使所述物体在所述辐射源和所述检测器矩阵之间相对于所述辐射源和所述检测器矩阵线性移动的传送装置; 以及控制和图像处理装置，用于控制辐射发生装置，数据获取装置和传送装置，并用于从投影数据重建待检查对象的图像。根据本发明的成像系统通过使用直线轨迹扫描并通过直线过滤的反投影算法重建断层摄影或立体图像来实现真正的立体放射照相。本发明的成像系统在圆锥轨道锥形CT中具有检测速度快，无旋转和大锥角问题的优点。

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