| 楔形滤板的使用原理和方法 |
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| 引用本文： | 钱剑杨!510060,黄晓延!510060,钟宁山!510060. 楔形滤板的使用原理和方法[J]. 中华放射肿瘤学杂志, 1996, 0(2) |
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| 作者姓名： | 钱剑杨!510060 黄晓延!510060 钟宁山!510060 |
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| 作者单位： | 广州中山医科大学附属肿瘤医院 |
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| 摘 要： | 目的 :探讨使用楔形滤板的一般原理和简便方法。材料与方法 :引入照射角的概念 ,给出中心轴上照射角计算公式。利用靶区剂量分布均匀时每个野的照射角及应给的剂量 ,由此求出楔形滤板应取的楔形角。结果 :通过喉癌及上颌窦癌放疗计划设计中的楔形角的计算 ,再利用放疗计划仪按算得的照射角得出相应等剂量图 ,验证了本方法的准确性。结论 :本方法简单可靠 ,可供无放疗计划仪的单位在放疗计划设计时使靶区剂量分布均匀时使用 ,也可供放疗计划优化时作参考
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| 关 键 词： | 放射治疗 治疗计划设计 剂量分布 |
The general rule and the way for using the wedge filter |
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| Qian Jianyang,Huang Xiaoyan,Zhong Ningsan. The general rule and the way for using the wedge filter[J]. Chinese Journal of Radiation Oncology, 1996, 0(2) |
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| Authors: | Qian Jianyang Huang Xiaoyan Zhong Ningsan |
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| Affiliation: | Qian Jianyang,Huang Xiaoyan,Zhong Ningsan. Tumor Hospital of San Yat-sun University of Medical Science,Guangzhou 510060 |
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| Abstract: | purpose:This paper is to provide the gerneral principle and method of using the wedge filter. Materials and Methods:A concept of the irradiation angle and a equation to calculate it were introduced. The radiation angle and the given dose for each field were derived from this equation.The wedge angles of each field were got.Results: By means of the examples of laryngocarcinoma and carcinoma of maxillary sinus,the isodose graphs from the TPS using the radiation angles of the equations comfirmed this method.Conclusion: The way introduced is brief and raliable. It may help to optimize the treatment plan. |
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| Keywords: | Radiotherapy Treatment planing Dose distribution |
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