CT理论与应用研究2026，Vol.35Issue(3)：454-460,7.DOI:10.15953/j.ctta.2024.351
北京某郊区基层医疗机构成人头颅及胸部CT检查辐射剂量调查与分析
Investigation and Analysis of Radiation Dose in Adult Head and Chest CT Examinations at Primary Healthcare Institutions in a Suburban District of Beijing
摘要
Abstract
Objective:To investigate the radiation dose levels of adult head and chest CT examinations in a grassroots medical institution in a suburban area of Beijing,evaluate their rationality,and provide a basis for establishing the diagnostic reference level(DRL)for this region.Methods:Based on 15 CT devices of 11 grassroots medical institutions within the jurisdiction,the relevant scanning parameters and radiation dose data of head and chest CT examinations were collected,the dose distribution was statistically analyzed,and comparisons were made with the recommended values of DRL from both domestic and international sources.Results:The DRL of CT dose index(CTDI)and dose-length product(DLP)for head CT was 59.83 mGy and 814.08 mGy·cm,respectively,while the DRL of volume CT dose index(CTDIvol)and DLP for chest CT was 13.68 mGy and 444.51 mGy·cm,both of which were lower than the industry standards in China.The DRL of head CT was superior to most national standards,and the differences in other DRLs were not significant.The radiation dose in tertiary hospitals was significantly lower than that in primary hospitals,and there were significant differences in both scanning parameters and radiation doses.Conclusion:The overall radiation dose of adult head and chest CT in grassroots medical institutions in this region is within a reasonable range.However,the CT scanning parameters of some grassroots hospitals need to be optimized to further reduce the radiation risk for patients.关键词
CT/辐射剂量/诊断参考水平Key words
CT/radiation dose/diagnostic reference levels分类
医药卫生引用本文复制引用
张斌,魁学妍,廖建勇,王旭,聂文环,冯洪杰,马严丽,王文武,张永县..北京某郊区基层医疗机构成人头颅及胸部CT检查辐射剂量调查与分析[J].CT理论与应用研究,2026,35(3):454-460,7.基金项目
大兴区预防医学会科研课题基金(大兴区基层医疗机构CT检查辐射剂量调查与分析(XHKY202406)). （大兴区基层医疗机构CT检查辐射剂量调查与分析(XHKY202406）
