公开(公告)号：US20100166145A1

公开(公告)日：2010-07-01

申请号：US12644251

申请日：2009-12-22

申请人： Toru UMEKAWA ,  Yoshihiko NAGAMINE ,  Toshie SASAKI ,  Takao KIDANI ,  Hiroshi AKIYAMA

发明人： Toru UMEKAWA ,  Yoshihiko NAGAMINE ,  Toshie SASAKI ,  Takao KIDANI ,  Hiroshi AKIYAMA

IPC分类号： G01N23/04 ,  A61N5/10

CPC分类号： A61N5/1049 ,  A61B5/113 ,  A61B6/541 ,  A61N5/1037 ,  A61N5/1064 ,  A61N5/1068 ,  A61N2005/1061

摘要： A radiotherapy system achieves highly-accurate respiratory-gated irradiation with less x-ray exposure by performing x-ray imaging only during the respiratory phases that are necessary for the respiratory-gated irradiation. An external respiration monitor 300 externally monitors an external respiratory index of a patient. An x-ray source 200 and an x-ray detector 210, or internal-respiration observation devices, acquire x-ray images of the patient and monitor an internal respiratory index of the patient using the positions of internal body structures indicated by the acquired x-ray images. An x-ray imaging gating device 310 gates the x-ray imaging performed by the internal-respiration observation devices with the use of the external respiratory index such that the x-ray imaging is performed while the external respiratory index is within a predetermined range. An irradiation gating device 410 gates the irradiation of a treatment beam with the use of the internal respiratory index.

摘要翻译： 放射治疗系统通过仅在呼吸门控照射所需的呼吸相中进行x射线成像，实现高精度的呼吸门控照射，较少的X射线照射。 外部呼吸监测器300外部监测患者的外部呼吸指数。 X射线源200和X射线检测器210或内部呼吸观察装置获取患者的X射线图像并使用由所获取的x指示的内部身体结构的位置来监测患者的内部呼吸指数 -ray图像。 X射线成像门控装置310通过使用外部呼吸指数对由内呼吸观察装置进行的X射线成像进行选通，使得在外部呼吸指数在预定范围内时执行x射线成像。 照射门控装置410利用内部呼吸指数对治疗束的照射进行控制。