芬兰介入放射学和心脏病学中的工作人员晶状体剂量。

Staff eye lens dose in interventional radiology and cardiology in Finland.

机构信息

Radiation and Nuclear Safety Authority (STUK), POB 14, Helsinki 00811, Finland; HUS Diagnostic Center, Helsinki University and Helsinki University Hospital, Haartmaninkatu 4, 00290 Helsinki, Finland; Department of Physics, University of Helsinki, Helsinki, Finland; Department of Medical Physics, Kymsote, Kymenlaakso Central Hospital, Kotkantie 41, 48210 Kotka, Finland.

Radiation and Nuclear Safety Authority (STUK), POB 14, Helsinki 00811, Finland.

出版信息

Phys Med. 2022 Jun;98:1-7. doi: 10.1016/j.ejmp.2022.04.005. Epub 2022 Apr 18.

DOI:10.1016/j.ejmp.2022.04.005

PMID:35447576

Abstract

PURPOSE

The aim of this study was to investigate the eye lens and whole-body radiation doses to interventional radiology and cardiology staff in two Finnish hospitals.

METHODS

Simultaneous measurements of personal dose equivalent quantities H(3) and H(10) were conducted in clinical conditions during different radiological and cardiological interventional procedures. In order to study the feasibility to estimate eye lens dose with H(10) measured over the protective apron or thyroid shield, the ratio between measured H(3) and H(10) was investigated.

RESULTS AND CONCLUSIONS

Applying the obtained ratio on H(10) records from national dose register showed that only a small number of interventional radiologists and cardiologists in Finland may exceed eye lens equivalent dose levels of 20 mSv per year or 100 mSv in five consecutive years, but likely do not exceed 50 mSv in a single year. For the most Finnish interventionalists, the eye lens dose is well below 10 mSv per year. Nurses and radiographers assisting in interventions are, on average, less exposed than interventionalists, and will not exceed 20 mSv per year. Based on our results, H(10) measured over the protective apron or thyroid shield provides a conservative estimate of the eye lens dose for interventional radiologists and cardiologists, provided that appropriate protective glasses are used.

摘要

目的

本研究旨在调查芬兰两家医院介入放射科和心脏病科工作人员的晶状体和全身辐射剂量。

方法

在不同的放射学和心脏病介入程序的临床条件下，同时进行个人剂量当量 H(3)和 H(10)的测量。为了研究用防护围裙或甲状腺屏蔽上测量的 H(10)来估算晶状体剂量的可行性，研究了测量的 H(3)与 H(10)之间的比值。

结果与结论

将从国家剂量登记处获得的 H(10)记录中的比值应用于芬兰的少数介入放射科医生和心脏病专家，可能会超过每年 20 mSv 或连续五年每年 100 mSv 的晶状体当量剂量水平，但不太可能在一年内超过 50 mSv。对于大多数芬兰介入放射专家来说，晶状体剂量低于每年 10 mSv。协助介入的护士和放射技师的暴露量平均低于介入放射专家，且每年不会超过 20 mSv。基于我们的结果，在使用适当的防护眼镜的情况下，防护围裙或甲状腺屏蔽上测量的 H(10)可对介入放射科医生和心脏病专家的晶状体剂量进行保守估计。