重庆医学Issue(35)：4771-4773,3.DOI:10.3969/j.issn.1671-8348.2014.35.022
国产图像引导放射治疗系统XGS在鼻咽癌调强放射治疗中的临床应用
Clinical research of domestic image-guided radiotherapy system XGS-10 on intensity modulated radiotherapy of nasopharyngeal carcinoma
摘要
Abstract
Objective To evaluate the application value of domestic image‐guided radiotherapy system XGS‐10 made in Weidu medical company limited in intensity‐modulated radiotherapy for nasopharyngeal carcinoma .Methods A total of 30 nasopharyngeal carcinoma cases with intensity modulated radiatiotherapy by Varian accelerator were incorporated into the study .All patients ac‐cepted image‐guided radiotherapy system XGS‐10 of Chongqing Weidu medical company limited to obtain frontal images and CBCT to obtain CT images respectively .The images were matched with the planning images and target center ,then got the linear set‐up errors of left to right (X) ,superior to inferior (Y) ,and anterior to posterior (Z) ,and the time of acquiring and matching was recor‐ded .Results The correlation of both two instruments′setup errors in X ,Y ,Z direction is good ,the difference of setup errors was within the acceptable range ,and was not statistically significant (P>0 .05) .the time of acquiring images was (15 ± 2)s and that of matching images was (20 ± 2)s by XGS‐10 ;the time of acquiring images was (120 ± 8)s and that of matching images was (240 ± 10)s by Varian CBCT .Conclusion The setup error of XGS‐10 of intensity‐modulated radiotherapy for nasopharyngeal carcinoma was equal to CBCT ,but the time of acquiring and matching time of XGS‐10 was shorter than that of CBCT ,which could shorten the positioning time and reduce radiation dose for patient .As a result ,it is conducive to real‐time clinical radiotherapy guidance .关键词
放射疗法 ,计算机辅助/鼻咽肿瘤/摆位误差Key words
image-guided radiotherapy ,computer-assisted/nasopharyngeal neoplasms/setup errors分类
医药卫生引用本文复制引用
廖奎,陈华万,梁廷,王志令,王志海,陈晓品..国产图像引导放射治疗系统XGS在鼻咽癌调强放射治疗中的临床应用[J].重庆医学,2014,(35):4771-4773,3.基金项目
重庆市科委科技攻关项目（cstc2011ac5191）；重庆市科委集成示范项目（cstc2013jcsf10007）。 （）
