儿童胸部CT辐射剂量调查  

Investigation of CT radiation dose in chest of children

作　　者：郭大伟[1] 罗英男 高艳辉[1] 程亚梅[1] 张京战[1] 周开建[1] GUO Dawei;LUO Yingnan;GAO Yanhui;CHENG Yamei;ZHANG Jingzhan;ZHOU Kaijian(Hebei Proviencial Center for Disease Prevention and Control,Shijiazhuang 050021 China)

机构地区：[1]河北省疾病预防控制中心,河北石家庄050021

出　　处：《中国辐射卫生》2020年第3期232-235,共4页Chinese Journal of Radiological Health

基　　金：河北省重点研发计划自筹项目(172777230);医疗照射辐射防护与质量控制(131031110000150002)。

摘　　要：目的通过调查我省儿童胸部CT辐射剂量情况,一定程度上反映我省儿童CT辐射剂量情况,从而研究儿童CT辐射防护最优化方案。方法选择省内5家综合性医院,5家儿童医院,通过医院CT医学影像系统随机选择五个年龄段中接受胸部CT检查的受检者,针对样本受检者剂量报告中显示数据进行统计建立数据库。用SPSS 18.0软件对数据进行分析。结果15~70岁组与其他四组比较,CTDIvol和DLP,差异均有统计学意义;儿童年龄段(0~1,1~5,5~10,10~15岁组)中,两个相邻年龄段CTDIvol比较,差异无统计学意义。1~5岁组与5~10岁组DLP比较,5~10岁组与10~15岁组DLP比较,差异无统计学意义。结论研究制定一部专门针对儿童CT辐射防护的标准,进一步指导儿童CT检查的工作的发展。医疗机构在此基础上,更加细致完善儿童CT检查工作。Objective To reflect the CT radiation dose of children in our province and study the optimal CT radiation protection program for children by investigating the CT radiation dose of children's chest.Methods 5 comprehensive hospitals and 5 children's hospitals in our province were selected and randomly selected patients who received chest CT examination in five groups through the CT medical imaging system of the hospital.Finally the data in the dose report were analyzed through SPSS 18.0 software.Results The difference of the CTDIvol and DLP between the 15~70 age group and the other four groups was statistically significant;The difference of the CTDIvol between the any two adjacent age groups was no statistically significant in children's age group(0~1,1~5,5~10,10~15).There was no statistically significant difference between the DLP in 1~5 group and in 5~10 group,as same as the difference between the DLP in 5~10 group and in 10~15 group.Conclusion To guide the development of children CT examination,a child specific standard for CT radiation protection should be worked out.More detailed jobs of children CT examination should be improved on the basis of this study.

关 键 词：儿童 CT检查 辐射剂量 CT剂量指数 剂量长度乘积 

分 类 号：R144.1[医药卫生—公共卫生与预防医学]