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1. 发明授权

US06594336B2 Absorption dose measuring apparatus for intensity modulated radio therapy 失效
标题翻译：用于强度调制放射治疗的吸收剂量测量装置
公开(公告)号：US06594336B2
公开(公告)日：2003-07-15
申请号：US09956913
申请日：2001-09-21
申请人： Hiroshi Nishizawa , Kiyoshi Yoda , Keiichi Matsuo
发明人： Hiroshi Nishizawa , Kiyoshi Yoda , Keiichi Matsuo
IPC分类号： A61N500
CPC分类号： A61B6/583 , A61N5/1042 , A61N5/1048 , A61N5/1071 , A61N2005/1076
摘要： An intensity modulated radio therapy (IMRT) dosimeter measuring a three-dimensional absorption dose distribution in a transparent plastic phantom readily and accurately. In the IMRT dosimeter, radiation beams are directed to a phantom assembly having a scintillation fiber block sandwiched between two blocks of the phantom. As an intensity of light proportional to the radiation beam is emitted from one side of the scintillation fiber block, its profile is measured by an image sensor. Then, the three-dimensional absorption dose distribution is obtained from the light intensity distribution data. By summing the three-dimensional absorption dose distribution data measured with the radiation beam at different angles, an integrated three-dimensional absorption dose distribution in the phantom can be calculated readily and accurately.
摘要翻译：强度调制放射治疗（IMRT）剂量计容易且准确地测量透明塑料体模中的三维吸收剂量分布。在IMRT剂量计中，辐射束被引导到具有夹在两个模体块之间的闪烁纤维块的幻影组件。由于与闪光纤维块的一侧发射与辐射束成比例的光的强度，其轮廓由图像传感器测量。然后，从光强分布数据获得三维吸收剂量分布。通过用不同角度的辐射束测量的三维吸收剂量分布数据相加，可以容易且准确地计算体模中的一体化三维吸收剂量分布。

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