专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP2570080A1 RADIATION IMAGING APPARATUS AND PHANTOM USED FOR THE SAME 审中-公开
标题翻译：达芬奇（VAR）
公开(公告)号：EP2570080A1
公开(公告)日：2013-03-20
申请号：EP11780600.0
申请日：2011-05-10
申请人： Telesystems Co., Ltd.
发明人： YAMAKAWA,Tsutomu , OGAWA, Koichi , KATSUMATA, Akitoshi , TSUJITA, Masahiro , NAGAOKA, Hideyuki
IPC分类号： A61B6/03 , A61B6/02 , A61B6/14
CPC分类号： A61B6/14 , A61B6/025 , A61B6/027 , A61B6/0492 , A61B6/4452 , A61B6/469 , A61B6/547 , A61B6/583 , A61B6/584 , A61B6/588 , G06T11/006 , G06T2211/436
摘要： In the imaging space provided by a panoramic imaging apparatus, a phantom is arranged. The phantom is located to a predetermined tomographic plane and includes markers which image known positional information with an X-ray beam. The X-ray beam from an X-ray source is acquired as X-ray transmission data by a detector, and a panoramic image is produced using the data. Based on known positional information of the markers and information of marker positions in the panoramic image, distance information (Rs, Rd) between the X-ray tube and the detector and height information (B1) of the X-ray tube to the detector are calculated. From this calculated results and the acquired data, parameters (Δx/ΔFi, θ, Δθ/ΔFi, D, A, CX, CY)defining positional relationships among the X-ray tube, the detector, and the tomographic plane are calculated such that amounts of changes in the position connecting the X-ray tube and the detector are considered in the parameters. This allows the parameters to be calibrated for 3D image reconstruction.
摘要翻译：在由全景成像装置提供的成像空间中，布置了幻影。该体模位于预定的断层摄影平面，并且包括用X射线束图像已知位置信息的标记。来自X射线源的X射线束由检测器获取为X射线透射数据，并且使用该数据产生全景图像。基于标记的已知位置信息和全景图像中的标记位置的信息，X射线管与检测器之间的距离信息（Rs，Rd）和X射线管与检测器的高度信息（B1）计算。根据该计算结果和所获取的数据，定义X射线管，检测器和断层扫描平面之间的位置关系的参数（“x /”Fi，¸，“¸/”Fi，D，A，CX，CY）被计算为在参数中考虑连接X射线管和检测器的位置的变化量。这允许为3D图像重建校准参数。

IPRDB

热门服务

关于我们

友情链接

联系方式