[1]李兆斌,熊霏,黄国锋. 术中光子立体定向放射治疗的质量保证和质量控制[J].中国医学物理学杂志,2019,36(10):1157-1161.[doi:DOI:10.3969/j.issn.1005-202X.2019.10.008]
　LI Zhaobin,XIONG Fei,HUANG Guofeng. Quality assurance and quality control for intraoperative photon-based stereotactic body radiotherapy[J].Chinese Journal of Medical Physics,2019,36(10):1157-1161.[doi:DOI:10.3969/j.issn.1005-202X.2019.10.008]
点击复制

 术中光子立体定向放射治疗的质量保证和质量控制()
分享到：

《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]

卷:
36卷
期数:
2019年第10期
页码:
1157-1161
栏目:
医学放射物理
出版日期:
2019-10-29

文章信息/Info

Title:
 Quality assurance and quality control for intraoperative photon-based stereotactic body radiotherapy
文章编号:
1005-202X（2019）10-1157-05
作者:
 李兆斌; 熊霏; 黄国锋
 上海交通大学附属第六人民医院肿瘤放疗科， 上海 200233
Author(s):
 LI Zhaobin;  XIONG Fei;  HUANG Guofeng
 Department of Radiation Oncology, the Sixth People’s Hospital Affiliated to Shanghai Jiaotong University, Shanghai 200233, China
关键词:
 ; 术中放疗; 立体定向; 放射治疗; 质量保证; 质量控制
Keywords:
 ; Keywords: intraoperative radiation therapy;  stereotactic body;  radiotherapy;  quality assurance;  quality control
分类号:
R811
DOI:
DOI:10.3969/j.issn.1005-202X.2019.10.008
文献标志码:
A
摘要:
 【摘要】目的：从术中光子立体定向放疗设备物理剂量学方面，总结和分析术中放疗质量保证的内容和方法以及术中放疗实际应用中的注意事项，保证术中放疗物理剂量准确性，旨在建立该系统的日常质量保证程序。方法：利用蔡司公司提供的水箱、剂量仪、电离室等，测量术中立体定向放射外科系统的临床运用数据。监测内容主要包括剂量线性、稳定性、均匀性、射线几何聚焦的位置、绝对剂量标定以及在水模体的衰减等。结果：术中光子立体定向放疗仪产生50 kV低能射线。剂量线性、均匀性良好，短期稳定性也在临床接受的误差范围以内，36 h内剂量误差小于1%。对比24个月的剂量测量值，其误差达到-4.5%。结论：该设备稳定性良好，各检测指标均在临床要求精度范围以内。通过测量了解了卡尔蔡司公司的INTRABEAM术中放射治疗设备临床应用特性，获得了临床使用数据，为临床提供了质量保证方法。
Abstract:
 Abstract: Objective From the aspect of the dosimetric characteristics of intraoperative photon-based stereotactic radiotherapy (IORT), to summarize and analyze the monitoring items and methods of quality assurance for IORT and the experiences and considerations in the clinical practice of IORT for ensuring the dosimetric accuracy of IORT, so as to establish an daily quality assurance for IORT. Methods The water phantom, dosimeter and ionization chamber from Carl Zeiss were used to measure the dosimetric data from IORT system. The main monitoring items included dose linearity, stability, homogeneity, the geometric focus of beams, absolute dose calibration and the attenuation in water phantom. Results Intrabeam system produced 50 kV low-energy beams. The dose linearity, homogeneity and short-term stability were within the clinical acceptable range. The dose error was less than 1% within 36 hours. However, the analysis on the dose measurements in 24 months showed that the dose error reached -4.5%. Conclusion The system has a favorable stability and the monitoring items are within clinically required ranges. By measurement, the clinical characteristics of Intarbeam system from Karl Zeiss and the clinically used data are obtained, which provides a method of quality assurance for clinic.

相似文献/References:

[1]王遥,霍万里,熊壮,等.TACE手术中不同站姿下铅眼镜和铅面罩对医生眼晶状体防护效果的蒙特卡洛模拟比较[J].中国医学物理学杂志,2016,33(6):553.[doi:DOI:10.3969/j.issn.1005-202X.2016.06.003]
　[J].Chinese Journal of Medical Physics,2016,33(10):553.[doi:DOI:10.3969/j.issn.1005-202X.2016.06.003]
[2]张新,谷晓芳,王培臣,等.轻离子束治疗设备注册检验关键技术问题[J].中国医学物理学杂志,2016,33(6):559.[doi:10.3969/j.issn.1005-202X.2016.06.004]
　[J].Chinese Journal of Medical Physics,2016,33(10):559.[doi:10.3969/j.issn.1005-202X.2016.06.004]
[3]江芬芬,王培,康盛伟,等. 热释光剂量片测量肺部肿瘤放疗剂量的方法[J].中国医学物理学杂志,2016,33(6):564.[doi:10.3969/j.issn.1005-202X.2016.06.005]
　[J].Chinese Journal of Medical Physics,2016,33(10):564.[doi:10.3969/j.issn.1005-202X.2016.06.005]
[4]刘洪源,彭威,杨锐,等. 锥形束CT离线校正肺癌摆位误差[J].中国医学物理学杂志,2016,33(6):573.[doi:10.3969/j.issn.1005-202X.2016.06.007]
　[J].Chinese Journal of Medical Physics,2016,33(10):573.[doi:10.3969/j.issn.1005-202X.2016.06.007]
[5]赵彪,潘香,杨毅,等. 右乳癌保乳术后瘤床同步X线和后程电子线补量调强放疗剂量学比较[J].中国医学物理学杂志,2016,33(6):576.[doi:10.3969/j.issn.1005-202X.2016.06.008]
　[J].Chinese Journal of Medical Physics,2016,33(10):576.[doi:10.3969/j.issn.1005-202X.2016.06.008]
[6]邓南,钱建庭,刁现芬,等. 基于宽带检测放疗X-光光声效应仿体实验[J].中国医学物理学杂志,2016,33(9):865.[doi:DOI:10.3969/j.issn.1005-202X.2016.09.001]
　[J].Chinese Journal of Medical Physics,2016,33(10):865.[doi:DOI:10.3969/j.issn.1005-202X.2016.09.001]
[7]张先稳,李军,张西志,等. 宫颈癌术后5野调强放疗4个变量组合的最佳治疗模式的剂量学[J].中国医学物理学杂志,2016,33(9):872.[doi:10.3969/j.issn.1005-202X.2016.09.002]
　[J].Chinese Journal of Medical Physics,2016,33(10):872.[doi:10.3969/j.issn.1005-202X.2016.09.002]
[8]胡健,李承军,徐利明,等. 床面倾斜对剂量验证通过率的影响[J].中国医学物理学杂志,2016,33(9):881.[doi:10.3969/j.issn.1005-202X.2016.09.003]
　[J].Chinese Journal of Medical Physics,2016,33(10):881.[doi:10.3969/j.issn.1005-202X.2016.09.003]
[9]陈亚正,肖明勇,孙春堂,等. 准直器角度对宫颈癌术后VMAT计划的影响[J].中国医学物理学杂志,2016,33(9):885.[doi:10.3969/j.issn.1005-202X.2016.09.004]
　[J].Chinese Journal of Medical Physics,2016,33(10):885.[doi:10.3969/j.issn.1005-202X.2016.09.004]
[10]李毅,唐丰文,张晓智. 基于四维CT和锥形束CT确定非小细胞肺癌放疗靶区外放边界[J].中国医学物理学杂志,2016,33(9):892.[doi:10.3969/j.issn.1005-202X.2016.09.005]
　[J].Chinese Journal of Medical Physics,2016,33(10):892.[doi:10.3969/j.issn.1005-202X.2016.09.005]

备注/Memo

备注/Memo:
 【收稿日期】2019-02-25
【作者简介】李兆斌，硕士，物理师，主要从事放射治疗的质量保证和质量控制、TPS计划优化、影像组学等方面的研究，E-mail： lizhaobin79@163.com
更新日期/Last Update: 2019-10-30