Institute of Radiation Physics (IRA), Lausanne University Hospital, Lausanne, Switzerland.
Radiation Protection Division, Swiss Federal Office of Public Health, Bern, Switzerland.
Radiat Prot Dosimetry. 2021 Oct 12;195(3-4):289-295. doi: 10.1093/rpd/ncab012.
Nationwide surveys on radiation dose to the population from medical imaging are recommended in order to follow trends in population exposure. The goal of the 2018 survey was to investigate the current exposure. The invoice coding information was collected in five university hospitals and large clinics. To improve the estimation of the effective dose delivered in computed tomography (CT), we collected dose data from different Dose Archiving Communication Systems. On average, we found that 1.2 radiological examinations per year and per inhabitant were performed. Dental radiography was the most frequent examination (48% of all the X-ray examinations), followed by conventional radiography (36%) and CT (11%). The average annual effective dose was estimated to be 1.48 mSv per inhabitant, with CT representing 64% of that dose. Our results show that the exposure of the Swiss population from medical imaging has remained stable since 2013, despite a 15% increase in the number of CT examinations.
为了跟踪人群的辐射暴露趋势,建议对来自医学成像的人群辐射剂量进行全国性调查。2018 年调查的目的是调查当前的辐射暴露情况。发票编码信息是在五所大学医院和大型诊所收集的。为了提高对计算机断层扫描(CT)中所给予的有效剂量的估计,我们从不同的剂量档案通信系统中收集了剂量数据。平均而言,我们发现每年每个居民进行 1.2 次放射检查。牙科放射摄影是最常见的检查(所有 X 射线检查的 48%),其次是常规放射摄影(36%)和 CT(11%)。估计每个居民的年平均有效剂量为 1.48 毫西弗,其中 CT 占该剂量的 64%。我们的结果表明,尽管 CT 检查数量增加了 15%,但自 2013 年以来,瑞士人口的医学成像辐射暴露量一直保持稳定。