XHA600E型国产数字化加速器性能检测与对比评价  

Performance Verifi cation and Contrast Evaluation of XHA600E Digital Accelerator

作　　者：马蕾杰 宋迎新 雷宏昌 刘晗 刘冰 陈鹏 MA Leijie;SONG Yingxin;LEI Hongchang;LIU Han;LIU Bing;CHEN Peng(Department of Radiation Therapy, The Affliated Tumor Hospital of Zhengzhou University, Henan Provincial Tumor Hospital, Zhengzhou Henan 450008, China;Shandong Xinhua Medical Devices Co., Ltd., Zibo Shandong 255086, China)

机构地区：[1]郑州大学附属肿瘤医院河南省肿瘤医院放疗科,河南郑州450008 [2]山东新华医疗器械股份有限公司,山东淄博255086

出　　处：《中国医疗设备》2018年第6期88-91,共4页China Medical Devices

基　　金：河南省科技攻关项目(162102310321)

摘　　要：目的对XHA600E型数字化加速器的各项技术指标进行系统性测试,并与Unique加速器在关键参数方面进行对比,找出新型国产加速器与进口加速器之间的差距,以期更好地使用XHA600E加速器开展临床治疗。方法依据国家标准GB/T 19046《医用电子加速器验收试验和周期检验规程》,使用水平仪、坐标纸、三维水箱、免冲洗胶片和Las Vegas模体等工具分别对XHA600E型加速器的机械参数、射线参数、MLC相关参数和EPID性能等进行测试,再对Unique加速器的等中心精度、射线质、射野平坦度和对称性等关键参数进行检测,两台设备测试结果进行对比评价。结果 XHA600E型加速器的各项技术指标均在误差要求范围以内。两台设备在等中心精度、射线质、射野平坦度和对称性等关键参数方面的差别不大,Unique总体优于XHA600E。结论 XHA600E相较于其上一代600D机型,软硬件性能有了很大提升,缩小了与进口加速器之间的差距。但在三维影像验证和剂量验证功能方面,仍有很大提升的空间。Objective To fi nd the gap between the new domestic accelerator and the import accelerator, and to better use XHA600 E accelerator for clinical treatment, we performed a systematic test with the technical indicators of XHA600 E digital accelerator and a comparative analysis between the Unique accelerator and XHA600 E accelerator in the key parameters. Methods Firstly, the mechanical parameters, ray parameters, MLC parameters and EPID performance of the XHA600 E accelerator were tested by using tools such as spirit level, coordinate paper, three-dimensional water tank, rinse-free fi lm and Las Vegas phantom according to the national s tandard GB/T 19046 ＂medical electron accelerator acceptance test and periodic inspection procedures＂. Then the key parameters include the accuracy of isocenter, ray quality, fi eld fl atness and symmetry of Unique accelerator were tested. Finally, two equipment test results were compared and evaluated. Results The technical indicators of XHA600 E accelerator were all within the scope of error requirements. Two devices had little difference in the key parameters such as accuracy of isocenter, ray quality, fi eld fl atness and symmetry, and Unique overall was superior to XHA600 E. Conclusion Compared with the previous generation of 600 D model, XHA600 E has greatly improved in hardware and software performance, which narrows the gap with the import accelerator. However, there is still a lot of room for improvement in 3 D image verifi cation and dose verifi cation.

关 键 词：国产加速器 等中心精度 性能检测 对比评价 

分 类 号：TH774[机械工程—仪器科学与技术]