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    • 10. 发明授权
    • Radiation therapy device controller, processing method and program for same
    • 放射治疗装置控制器,处理方法和程序相同
    • US09393445B2
    • 2016-07-19
    • US13994986
    • 2011-10-24
    • Masahiro YamadaYasunobu SuzukiKunio Takahashi
    • Masahiro YamadaYasunobu SuzukiKunio Takahashi
    • A61N5/10
    • A61N5/1039A61N5/1049A61N5/1067A61N2005/1054A61N2005/1059A61N2005/1062
    • This radiation therapy device controller selects, for a plurality of body motion phases, computed tomography image data obtained which shows a diseased portion, and generates, for each rotation angles of a ray source and a sensor array, a reconstructed image. The control device generates a radiation projection image which shows the diseased portion when the radiation is radiated if the rotation angle is a predetermined rotation angle, compares the reconstructed image of each of the plurality of body motion phases with the radiation projection image, and determines a body motion phase indicated by a reconstructed image in which a difference is small, to be a current respiratory phase. As a result, a position of the diseased portion calculated for the computed tomography image data in the computed tomography image data group of the respiratory phase in advance is identified to be a current position of the diseased portion.
    • 该放射治疗装置控制器针对多个身体运动相位选择显示患病部位的计算机断层摄影图像数据,并且对于射线源和传感器阵列的每个旋转角度生成重建图像。 当旋转角度为预定旋转角度时,控制装置产生放射线辐射时的病变部位的放射线投影图像,将多个体动相各部的重建图像与放射线投射图像进行比较, 由差异较小的重建图像指示的身体运动相位成为当前的呼吸相位。 结果,预先将计算机断层摄影图像数据计算出的断层摄影图像数据组中计算出的患病部位的位置识别为患病部位的当前位置。