螺旋断层放射治疗系统质量控制检测与评价
Quality control test and assessment of helical tomotherapy unit
- 辐射研究与辐射工艺学报 2016年34卷第4期 页码：23-26
- 作者机构：
1.湖南省职业病防治院 长沙 410007
2.北京协和医学院 & 中国医学科学院放射医学研究所 天津 300192
3.北京市疾病预防控制中心 北京 100013
- 作者简介：
[ "翟自坡,男,1980年10出生,2008年毕业于南华大学核科学技术学院,目前于湖南省职业病防治院从事放射检测与评价工作,工程师,E-mail:40533194@qq.com", "ZHAI Zipo (male) was born in October 1980 and graduated from School of Nuclear Science and Technology of University of South China in 2008. Now he is working in Hunan Province Occupational Disease Prevention and Control Hospital as aengineer, engaging in the work of radiation detection and evaluation. E-mail:40533194@qq.com" ]
- 基金信息：协和青年基金(3332015101)
DOI：10.11889/j.1000-3436.2016.rrj.34.040201
中图分类号：
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翟自坡, 翟贺争, 马永忠, 等. 螺旋断层放射治疗系统质量控制检测与评价[J]. 辐射研究与辐射工艺学报, 2016,34(4):23-26.
Zipo ZHAI, Hezheng ZHAI, Yongzhong MA, et al. Quality control test and assessment of helical tomotherapy unit[J]. Journal of Radiation Research and Radiation Processing, 2016,34(4):23-26.
翟自坡, 翟贺争, 马永忠, 等. 螺旋断层放射治疗系统质量控制检测与评价[J]. 辐射研究与辐射工艺学报, 2016,34(4):23-26. DOI： 10.11889/j.1000-3436.2016.rrj.34.040201.
Zipo ZHAI, Hezheng ZHAI, Yongzhong MA, et al. Quality control test and assessment of helical tomotherapy unit[J]. Journal of Radiation Research and Radiation Processing, 2016,34(4):23-26. DOI： 10.11889/j.1000-3436.2016.rrj.34.040201.
摘要
对湖南省首台螺旋断层放射治疗（Tomotherapy，TOMO）系统进行质量控制验收检测，掌握设备的性能水平，为临床放射治疗提供保障。利用PTW UNIDOS剂量仪及其配套的电离室（0.6 cm,3,和0.125 cm,3,）、MatrixXX矩阵、EBT3胶片和模体，按照AAPM148报告，对TOMO的10个关键指标进行检测。结果显示：设备静态输出剂量偏差,<,0.1%，旋转输出剂量和计划剂量偏差-1.4%；射线质与标称值偏差0.3%；射野横向剂量曲线的对称性0.7%，射野纵向剂量曲线半高宽偏差0.5 mm；多叶准直器偏移偏差0.6 mm；绿激光灯指示虚拟等中心在,X,轴、,Y,轴和Z轴上的偏差均,<,1.0 mm；红激光灯指示和治疗床的移动偏差均,<,1.0 mm；治疗床和机架旋转同步性偏差0.6 mm。本次检测TOMO的10项关键指标均符合设备出厂指标要求，但仍需持续加强设备的质量控制检测。
Abstract
The investigation was conducted to evaluate the performance of the first tomotherapy (TOMO) in hunan to provide guarantee for clinical radiotherapy. PTW UNIDOS dosimeter and two ionization chambers (0.6 cm,3, and 0.125 cm,3,) were employed, together with MatrixXX, EBT3 films, and phantom, to test ten of the key indicators of TOMO, in accordance with the standards ,Specifications for Quality Control Test of Helical Tomotherapy Unit,. The results showed that there were some deviations in the indicators:a deviation less than 0.1% for static output dose, a deviation of -1.4% between the rotary output dose and the planned dose; a deviation of 0.3% for ray quality from the nominal value; a discrepancy of 0.7% for the transverse beam profile; a discrepancy of 0.5 mm for the FWHM of the longitudinal beam profiles; a deviation of 0.6 mm for multi-leaf collimator; a deviation less than 1.0 mm for virtual indication of green laser lights on ,X,-axis,Y,-axis and ,Z,-axis; a deviation lower than 1.0 mm between red laser light indication and movement of treatment couch; a 0.6 mm of synchronization deviation between couch and gantry rotation. So the 10 key indicators inspected are in line with the limits and indexes specified in ,Specifications for Quality Control Test of Helical Tomotherapy Unit,. However, consistent inspection of the apparatus is needed.
关键词
螺旋断层放射治疗质量控制吸收剂量百分深度剂量
Keywords
Helical TomotherapyQuality controlAbsorbed dosePercent depth dose
references
T R Mackie , T Holmes , S Swerdloff , 等 . Tomotherapy:a new concept for the delivery of dynamic conformal radiotherapy . Medical Physics , 1993 . 20 (6 ):1709 -1719 . DOI:10.1118/1.596958http://doi.org/10.1118/1.596958.
T R Mckie . The history of tomotherapy . Physics in Medical and Biology , 2006 . 51 427 -453 . DOI:10.1088/0031-9155/51/13/R24http://doi.org/10.1088/0031-9155/51/13/R24.
K M Langen , N Papanikolaou , J Balog , 等 . QA for helical tomotherapy:report of the AAPM task group 148 . Medical Physics , 2010 . 37 (9 ):4817 -4853 . DOI:10.1118/1.3462971http://doi.org/10.1118/1.3462971 .
J Balog , T Holmes , R Vaden , 等 . A helical tomotherapy dynamic quality assurance . Medical Physics , 2006 . 33 (10 ):3939 -3950 . DOI:10.1118/1.2351952http://doi.org/10.1118/1.2351952 .
J D Fenwick , W A Tome , H A Jaradat , 等 . Quality assurance of a helical tomotherapy machine . Physics in Medical and Biology , 2004 . 49 (13 ):2933 -2953 . DOI:10.1088/0031-9155/49/13/012http://doi.org/10.1088/0031-9155/49/13/012.
B G Olivera , J Kapatoes . Clinical helical tomotherapy commissioning Dosimetry . Medical Physics , 2003 . 30 (12 ):3097 -3106 . DOI:10.1118/1.1625444http://doi.org/10.1118/1.1625444.
J Balog , E Soisson . Helical tomotherapy quality assurance . International Journal of Radiation Oncology, Biology Physics , 2008 . 71 113 -117 . DOI:10.1016/j.ijrobp.2007.10.001http://doi.org/10.1016/j.ijrobp.2007.10.001.
Broggi S, Cattaneo G M, Molinelli S, et al. Results of a two-year quality control program for a helical Tomotherapy unit[J]. Radiotherapy & Oncology, 2008, 86(2):231:214.
马 永忠 , 万 玲 , 娄 云 , 等 . 螺旋断层放射治疗室内泄漏辐射与散射辐射监测与评价研究 . 中华放射医学与防护杂志 , 2013 . 33 (4 ):431 -435 . DOI:10.2760/cma.j.issn.0254-5098.2013.04.028http://doi.org/10.2760/cma.j.issn.0254-5098.2013.04.028 .
Yongzhong MA , Ling WAN , Yun LOU , 等 . A study on monitoring and assessment of leakage and scattering radiation in a helical tomotherapy room . Chinese Journal of Radiological Medicine and Protection , 2013 . 33 (4 ):431 -435 . DOI:10.2760/cma.j.issn.0254-5098.2013.04.028http://doi.org/10.2760/cma.j.issn.0254-5098.2013.04.028 .
胡逸民. 肿瘤放射物理学[M]. 第2版. 北京:原子能出版社, 2003:123-131, 571-572.
HU Yimin. Radiation oncology physics:2nd edition[M]. Beijing:Atomic Energy Press, 2003:123-131, 571-572.
戴 建荣 , 胡 逸民 . 独立准直器在适形放疗中的应用 . 发明专利公报 , 1998 . 14 (15 ):15 .
Jianrong DAI , Yimin HU . The application of the multileaf collimator in conformal radiation therapy . Invention Patent Gazette , 1998 . 14 (15 ):15 .
A Zacarias , J Balog , M Mills . Radiation shielding design of a new tomotherapy facility . Health Physics , 2006 . 91 (4 ):289 -295 . DOI:10.1097/01.HP.0000194200.06255.2chttp://doi.org/10.1097/01.HP.0000194200.06255.2c.
C Woodford , S Yartsev , Dyk J Van . Optimization of megavoltage CT scan registration settings for thoracic cases on helical tomotherapy . Physics in Medical and Biology , 2007 . 52 (15 ):345 -354 . DOI:10.1088/0031-9155/52/15/N04http://doi.org/10.1088/0031-9155/52/15/N04.
K J Ruchala , G H Olivera , E A Schloesser , 等 . Megavoltage CT on a tomotherapy system . Physics in Medicine and Biology , 1999 . 44 (10 ):2597 -2621 . DOI:10.1088/0031-9155/44/10/316http://doi.org/10.1088/0031-9155/44/10/316.
Association of Physicists in Medical American . Radiation treatment planning dosimetry therapy verification(R) . The American Association of Physicists in Medicine (AAPM) Report 55 , 1995 .
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