四川省6家医院医疗照射频度调查结果分析  

Analysis on the Application Frequency of Medical Exposure in 6 Hospitals of Sichuan Province

作　　者：李林御 李红[1] 张洋[1] LI Linyu;LI Hong;ZHANG Yang(Sichuan Center for Disease Control and Prevention,Chengdu 610041,Sichuan Province,China)

机构地区：[1]四川省疾病预防控制中心

出　　处：《职业卫生与病伤》2019年第6期344-348,共5页Occupational Health and Damage

基　　金：四川省科技支撑计划项目（项目编号：2012SZ0179）;四川省疾病预防控制中心自立课题（项目编号：ZX201710）

摘　　要：目的通过对四川省6家医院的医疗照射频度进行预调查,初步了解四川省医疗照射频度的分布特点,为推进全省医疗照射频度的普查做准备。方法选取四川省6家开展放射诊疗的机构作为调查对象,按照全国医疗照射剂量及频度调查方案的要求,采用全国统一的调查表进行调查,通过被选医院的信息系统及手工登记本收集放射诊疗设备的基本情况和受检者年龄、性别、检查部位、检查类别等信息,并用Excel 2007软件编辑公式对结果进行分析。结果调查的6家医疗机构的X射线诊断总人次为356706,其中常规X射线诊断267126人次、CT检查89580人次;介入放射学总人次1678;放射治疗总人次为327。样本中受检者医疗照射频度男女比例较为平均;年龄分布中“>40”组占比例最高(59.3%);各种检查类型三级医院的放射诊断频度占比最高;以此次调查结果估算四川省2015年X射线诊断照射频度达到424.7人次/千人口,其中CR/DR诊断频度为316.5人次/千人口,CT检查频度达到107.9人次/千人口。结论四川省医疗照射的频度水平发展较快,其中X射线诊断检查所占的比例最高,因此,加强医疗照射的防护,监督医疗照射正当性是当前十分重要的公共卫生问题。Objective To evaluate the distribution characteristics of the application frequency of medical exposure in Sichuan Province through a pilot survey,so as to prepare for the promotion of the general survey of medical exposure frequency in Sichuan Province.Methods Six institutions conducting radiology and treatment were selected in Sichuan province.According to the requirements of the national medical dose and frequency survey program,a national unified questionnaire was used for investigation.The basic situation of the radiation equipment and the age,gender,inspection site,inspection category of the patients were collected through the information system and the manual registration book of the selected hospitals.The results were analyzed by using the Microsoft Office software.Results The total number of X-ray diagnosis of 6 medical institutions was 356706,including 267126 conventional X-ray diagnoses and 89580 CT examinations.Total volume of interventional radiology was 1678.The total number of patients treated with radiotherapy was 327.There was no significant difference of total number of X-ray diagnosis between two sexes.The age group of over 40 years accounted for the highest proportion of the total number of X-ray diagnosis.The tertiary hospitals accounted for the highest frequency of radiological diagnosis.It is estimated that the frequency of X-ray diagnosis reached 424.7 persontimes/thousand people in Sichuan province in 2015;the CR/DR diagnostic frequency was 316.5 person-times/thousand population,and the frequency of CT examination reached 107.9 person-times/thousand people.Conclusion The frequency level of medical radiation has developed rapidly in Sichuan province,and X-ray diagnostic examination accounts for the highest proportion.Therefore,it is an important public health issue to strengthen the protection of medical radiation and supervise the legitimacy of medical radiation.

关 键 词：X射线诊断 医疗照射 应用频度 

分 类 号：R144[医药卫生—公共卫生与预防医学]