公开(公告)号：US07957507B2

公开(公告)日：2011-06-07

申请号：US11361883

申请日：2006-02-24

申请人： Patrick F. Cadman

发明人： Patrick F. Cadman

IPC分类号： A61N5/10

CPC分类号： A61N5/1042 ,  G21K1/04 ,  G21K1/046

摘要： An apparatus and method to deliver intensity modulated radiation therapy by irradiating a treatment volume with rotation of the radiation beam. The system includes a collimation device comprising a two-dimensional array of pivoting attenuating leaves, which are temporarily placed into the radiation beam path as the gantry rotates around the patient. The leaves are independently movable between a first position and a second position. The radiation beam intensity is modulated by controlling the time that each leaf is present to attenuate the beam.

摘要翻译： 一种通过辐射束的旋转照射治疗体积来递送强度调制放射治疗的装置和方法。 该系统包括准直装置，其包括枢转衰减叶片的二维阵列，当台架围绕患者旋转时临时放置在辐射束路径中。 叶片可独立地在第一位置和第二位置之间移动。 通过控制每个叶片存在的时间来衰减光束来调制辐射束强度。