Delmas Antoine, Weber Nicolas, Piffre Joris, Pasquier Cédric, Felblinger Jacques, Vuissoz Pierre-André
Bât recherche, CHRU de Nancy Brabois, rue du Morvan, 54511 Vandoeuvre-lès-Nancy, France.
IADI, Université de Lorraine, Nancy, France.
Radiat Prot Dosimetry. 2017 Dec 1;177(4):415-423. doi: 10.1093/rpd/ncx060.
Worker exposure to electromagnetic fields (EMF) is a growing concern of international commissions. A European directive from 2013 (2013/35/EU) recommend to estimate or measure EMF exposure of all exposed workers. Magnetic resonance imaging (MRI) workers are specially concerned by this point because they work all day long in the vicinity of a very strong magnet (generally 1.5 or 3 T), which cannot be turned off. Setting up a magnetic field monitoring device on these workers would therefore be a good way to ensure their security. European directive threshold adequacy could then be verified. But this verification does not ensure a complete analysis of the worker exposure. Such an analysis based on quality control charts and exposure time's metrics has been described in this paper. The proposed magnetic field exposure analysis has additionally been tested on a long-term exposure follow-up of 18 MRI workers during 2 months.
工人接触电磁场（EMF）是国际委员会日益关注的问题。2013年的一项欧洲指令（2013/35/EU）建议对所有接触EMF的工人的暴露情况进行估计或测量。磁共振成像（MRI）工作人员尤其关注这一点，因为他们整天都在一个非常强的磁铁（通常为1.5或3特斯拉）附近工作，而这个磁铁无法关闭。因此，在这些工作人员身上设置磁场监测设备将是确保他们安全的一个好方法。这样就可以验证欧洲指令阈值的适当性。但这种验证并不能确保对工人暴露情况进行全面分析。本文描述了一种基于质量控制图和暴露时间指标的此类分析方法。所提出的磁场暴露分析方法还在18名MRI工作人员的2个月长期暴露随访中进行了测试。
