摘要
目的探讨在心脏射频消融术中防护舱对第1及第2术者的防护效果。方法将实时剂量仪贴附在术者主要体表部位,包括100、120、140和160 cm 4个高度,采取心脏射频消融术常用投影体位(正位,左侧位,右前斜位30°及左前斜位45°),在无防护装置下及防护舱防护下分别测量第1及第2术者各部位剂量率,并计算剂量衰减率。剂量衰减率=(无防护剂量率-有防护剂量率)/无防护剂量率×100%。结果防护舱防护下,第1术者辐射剂量率为(0.5±0.1)μSv/min,剂量衰减率高达99%以上。第2术者的辐射剂量率为(0.5±0.1)～(1.2±0.2)μSv/min,除了100～120 cm在右前斜30°的辐射防护略差[剂量率为(1.1±0.1)μSv/min;衰减率,80.7%],其余投照体位的辐射衰减率均在90%以上。结论使用辐射防护舱可以有效地提供辐射防护,不仅可以大大降低第1术者的辐射暴露,对第2术者也有辐射防护效果。
Objective To investigate the radiation protection effect of radioprotection cabin on the first and second operators in performing cardiac radiofrequency ablation. Methods The real-time dosimeters were attached on the operators′ main body surface areas, at the heights of 100 cm, 120 cm, 140 cm and 160 cm separately. The radioactive ray entrance doses at different sites on the first and second operators were measured at the following projection positions commonly used in radiofrequency ablation of heart ： posterioranterior（PA）, left lateral, 30° right anterior oblique（RAO） and 45° left anterior oblique（LAO） positions.The measurement of the radioactive ray entrance doses was conducted with and without the use of radioprotection cabin separately. The radiation dose attenuation ratio was calculated by the following formula ：（radiation dose in not using radioprotection cabin-radiation dose in using radioprotection cabin） ÷ radiation dose in not using radioprotection cabin ×100%. Results Under the protection of radioprotection cabin, the radiation dose rate received by the first operator was（0.5±0.1） μSv/min, and the radiation dose attenuation ratio was up to over 99%. The radiation dose rate received by the second operator ranged from（0.5±0.1） μSv/min to（1.2±0.2） μSv/min, and the radiation dose attenuation ratio was up to over 90% except at 100 cm and120 cm heights and at 30° RAO position, where the radiation dose rate was（1.1 ±0.1） μSv/min and the radiation dose attenuation ratio was 80.7%. Conclusion The use of radioprotection cabin can effectively provide radiation protection. It not only can greatly reduce the radiation exposure on the first operator, but also provide radiation protection on the second operator.
作者
陈子满
邹剑明
温红
黄美萍
王英丽
胡天宇
梁稳生
CHEN Ziman;ZOU Jianming;WEN Hong;HUANG Meiping;WANG Yingli;HU Tianyu;LIANG Wensheng(Huizhou Municipal Central People＇s Hospital,Huizhou,Guangdong Province 516001,China)
出处
《介入放射学杂志》
CSCD
北大核心
2018年第11期1098-1101,共4页
Journal of Interventional Radiology
基金
NSFC-广东联合基金重点支持项目(U1401255)
国家“十二五”科技支撑计划项目(2011BAI11B22)
广东省科技支撑计划项目(2009B030801257、2013B031800006)
关键词
心脏射频消融
辐射防护舱
辐射剂量
辐射防护
cardiac radiofrequency ablation
radioprotection cabin
radiation dose
radiation protection
