| 简化调强技术在胃癌术后放射治疗中的应用 |
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| 引用本文： | 陈旭明,陈颖,姚升宇,许奕,赵国旗.简化调强技术在胃癌术后放射治疗中的应用[J].中国医学物理学杂志,2011,28(5):2847-2849. |
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| 作者姓名： | 陈旭明 陈颖 姚升宇 许奕 赵国旗 |
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| 作者单位： | 上海交通大学附属第一人民医院肿瘤科,上海,201620 |
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| 摘 要： | 目的：研究评价简化调强技术在胃癌术后辅助放射治疗中的剂量学与应用特点。方法：采用10例胃癌术后辅助放疗的病人,分别设计7野IMRT计划和5野sIMRT计划,利用剂量体积直方图比较这两种计划的适形度指数（CI）、不均匀度指数（SI）、总跳数以及相关的正常组织的受照射剂量。结果：7野调强计划的适形度指数和不均匀度指数都好于简化调强计划,但是简化调强计划在肝脏的受照剂量上均好于7野调强计划,总跳数也少于前者。结论简化调强技术对正常组织的照射剂量与总机器跳数明显少于7野调强计划,虽然在靶区的适形度和均匀性上不如前者,但也能满足靶区剂量条件,所以简化调强技术在临床应用中具有更便捷且能降低放疗毒性的优势。
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| 关 键 词： | 胃癌 调强放射治疗 简化调强 剂量学 |
Application of Simplified Intenstiy Modulated Radiation Therapy for Gastric Cancer |
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| CHEN Xu-ming,CHEN Ying,YAO Sheng-yu,XU Yi,ZHAO Guo-qi.Application of Simplified Intenstiy Modulated Radiation Therapy for Gastric Cancer[J].Chinese Journal of Medical Physics,2011,28(5):2847-2849. |
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| Authors: | CHEN Xu-ming CHEN Ying YAO Sheng-yu XU Yi ZHAO Guo-qi |
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| Institution: | CHEN Xu-ming,CHEN Ying,YAO Sheng-yu,XU Yi,ZHAO Guo-qi (Department of Oncology,Shanghai First People's Hospital,Shanghai Jiaotong Universtiy,Shanghai 201620,China) |
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| Abstract: | Objective: To investigate the dosimetry and application characteristic of the simplified intenstiy modulated radiation therapy for gastric cancer.Methods: Ten patients who treated with adjuvant radiaton therapy after surgery were enrolled in this study.7-field IMRT plan and 5-field sIMRT plan were performed for each patient and compared by the comformity index,heterogeneity index,total MU and irradiation dose of related normal tissue.Results: The comformity index and heterogeneity index of 7-field IMRT plan... |
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| Keywords: | gastric cancer intenstiy modulated radiation therapy simplified intenstiy modulated radiation therapy dosimetry |
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