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.

中文翻译：

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2018 年瑞士人口的医学影像年度暴露情况

建议在全国范围内对医学成像对人群的辐射剂量进行调查，以跟踪人群暴露的趋势。2018 年调查的目标是调查当前的暴露情况。发票编码信息是在五家大学医院和大型诊所收集的。为了改进计算机断层扫描 (CT) 中有效剂量的估计，我们从不同的剂量存档通信系统收集了剂量数据。平均而言，我们发现每个居民每年进行 1.2 次放射检查。牙科 X 线检查是最常见的检查（占所有 X 线检查的 48%），其次是常规 X 线检查（36%）和 CT（11%）。平均年有效剂量估计为每位居民 1.48 毫希，CT 占该剂量的 64%。