移动式电子束术中放疗系统日常质量保证程序的建立及剂量参数稳定性分析

doi:10.3969/j.issn.1007-3969.2014.01.009

中国癌症杂志 ›› 2014, Vol. 24 ›› Issue (1): 52-56.doi: 10.3969/j.issn.1007-3969.2014.01.009

移动式电子束术中放疗系统日常质量保证程序的建立及剂量参数稳定性分析

汪隽琦,马金利,胡伟刚,孙力宁

复旦大学附属肿瘤医院放疗科，复旦大学上海医学院肿瘤学系，上海200032

出版日期:2014-01-30 发布日期:2014-02-14
通信作者: 马金利　E-mail:jinlima_c@yahoo.com

Establishment of daily quality assurance program and analysis of dosimetric characteristics’ longterm stability for mobile intraoperative radiation therapy accelerator

WANG Jun-qi,MA Jin-li,HU Wei-gang,SUN Li-ning

Department of Radiation Oncology, Fudan University Shanghai Cancer Center,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China

Published:2014-01-30 Online:2014-02-14
Contact: MA Jin-li E-mail: jinlima_c@yahoo.com

文章分享

摘要/Abstract

摘要： 背景与目的：目前移动式电子束术中放疗已成为多种恶性肿瘤重要的辅助治疗手段，本研究旨在建立该系统的日常质量保证(quality assurance，QA)程序并评价其剂量参数的稳定性。方法：QA程序包括安全性及功能性和能量指标及输出剂量的测试，并对2年来质控数据进行分析，评价剂量参数的稳定性。结果：安全性和功能性的测试结果均正常；4、6、9和12 MeV电子束的能量指标分别为(0.666±0.015)mm、(0.839±0.009)mm、(0.781±0.010)mm和(0.724±0.009)mm，输出剂量误差分别为(0.511±0.671)%、(0.278±0.516)%、(0.368±0.532)%和(0.382±0.912)%，均符合相应标准且无随时间变化的趋势。结论：建立的日常QA程序适合于术中放疗系统，且该系统自身的稳定性能满足临床使用要求。

关键词: 术中放疗, 质量保证, 稳定性

Abstract: Background and purpose: Currently, intraoperative radiation therapy (IORT) has become the adjuvant therapy of cancer. The study was to establish the daily quality assurance (QA) program and analyze dosimetric characteristics’ long-term stability for mobile IORT accelerator. Methods: The QA program of this study included two parts: safety and functionality and energy and output. The two years’ QA datasets were acquired and analyzed to investigate the stability of energy and output. Results: All safety and functionality tests passed on a daily basis. The energy index was (0.666±0.015)mm, (0.839±0.009)mm, (0.781±0.010)mm, (0.724±0.009)mm and the output dose error was (0.511 ± 0.671)%, (0.278 ± 0.516)%, (0.368 ± 0.532)%, (0.382 ± 0.912)% for all energy, respectively. There was no significant time trend in the dosimetric characteristics. Conclusion: The daily QA program is suitable for mobile IORT accelerator. The long-term stability is acceptable for IORT in clinical use.

Key words: Intraoperative radiation therapy, Quality assurance, Long-term stability

汪隽琦,马金利,胡伟刚,孙力宁. 移动式电子束术中放疗系统日常质量保证程序的建立及剂量参数稳定性分析[J]. 中国癌症杂志, 2014, 24(1): 52-56.

WANG Jun-qi,MA Jin-li,HU Wei-gang,SUN Li-ning. Establishment of daily quality assurance program and analysis of dosimetric characteristics’ longterm stability for mobile intraoperative radiation therapy accelerator[J]. China Oncology, 2014, 24(1): 52-56.

[1]	李军, 陆亭伟, 方旭前. MSI-H/dMMR对BRAF V600E突变型的手术可切除结直肠癌患者的临床病理学特征及预后的影响[J]. 中国癌症杂志, 2024, 34(11): 1061-1066.
[2]	武全, 郭静伟, 雷雨馨, 胡晓儒, 王哲. MMR蛋白在515例子宫内膜样腺癌中表达及其与临床病理学特征的相关性分析[J]. 中国癌症杂志, 2022, 32(12): 1190-1198.
[3]	王乾, 张静, 郁成礼, 包龙龙, 蔡旭, 蒋文华, 黄丹, 盛伟琪, 朱晓丽, 周晓燕, 柏乾明. 全自动Idylla^TM系统在中国结直肠癌微卫星不稳定性检测中的可行性研究[J]. 中国癌症杂志, 2022, 32(11): 1084-1090.
[4]	赵胜光,陈毅,徐卫慧,等. 不可切除晚期胰腺癌行移动式术中放疗的安全性和有效性研究[J]. 中国癌症杂志, 2015, 25(6): 473-475.
[5]	章青,傅深. 乳腺癌的术中放疗[J]. 中国癌症杂志, 2013, 23(8): 590-595.

移动式电子束术中放疗系统日常质量保证程序的建立及剂量参数稳定性分析

Establishment of daily quality assurance program and analysis of dosimetric characteristics’ longterm stability for mobile intraoperative radiation therapy accelerator

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 5

编辑推荐

Metrics

本文评价