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首页> 外文期刊>Radiation Protection Dosimetry >TRANSITION IN OCCUPATIONAL RADIATION EXPOSURE MONITORING METHODS IN DIAGNOSTIC AND INTERVENTIONAL RADIOLOGY
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TRANSITION IN OCCUPATIONAL RADIATION EXPOSURE MONITORING METHODS IN DIAGNOSTIC AND INTERVENTIONAL RADIOLOGY

机译：诊断和介入放射学中职业辐射暴露监测方法的转变

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摘要

Radiation exposure monitoring is a traditional keystone of occupational radiation safety measures in medical imaging. The aim of this study was to review the data on occupational exposures in a large central university hospital radiology organisation and propose changes in the radiation worker categories and methods of exposure monitoring. An additional objective was to evaluate the development of electronic personal dosimeters and their potential in the digitised radiology environment. The personal equivalent dose of 267 radiation workers (116 radiologists and 151 radiographers) was monitored using personal dosimeters during the years 2006-2010. Accumulated exposure monitoring results exceeding the registration threshold were observed in the personal dosimeters of 73 workers (59 radiologists' doses ranged from 0.1 to 45.1 mSv; 14 radiographers' doses ranged from 0.1 to 1.3 mSv). The accumulated personal equivalent doses are generally very small, only a few angiog-raphy radiologists have doses >10 mSv per 5 y. The typical effective doses are <10 μSv y~(-1) and the highest value was 0.3 mSv (single interventional radiologist). A revised categorisation of radiation workers based on the working profile of the radiologist and observed accumulated doses is justified. Occupational monitoring can be implemented mostly with group dosimeters. An active real-time dosimetry system is warranted to support radiation protection strategy where optimisation aspects, including improving working methods, are essential.
机译：辐射暴露监测是医学成像中职业辐射安全措施的传统重点。这项研究的目的是审查一家大型中央大学医院放射科组织的职业暴露数据，并提出辐射工作者类别和暴露监测方法的变化。另一个目标是评估电子剂量计的发展及其在数字化放射学环境中的潜力。在2006-2010年期间，使用个人剂量计监测了267名放射工作人员的个人当量剂量（116名放射科医生和151名放射照相师）。在73名工作人员的个人剂量计中观察到累积的暴露监测结果超过了注册阈值（59名放射科医生的剂量范围为0.1至45.1 mSv； 14名放射技师的剂量范围为0.1至1.3 mSv）。累积的个人等效剂量通常很小，每5年只有少数血管造影放射科医生的剂量> 10 mSv。典型的有效剂量为<10μSvy〜（-1），最高值为0.3 mSv（单次介入放射科医生）。有理由根据放射科医生的工作概况和观察到的累积剂量对放射工作人员进行修订的分类。职业监测大多可以通过剂量计进行。有源实时剂量测定系统可支持辐射防护策略，在这些方面，优化方面（包括改进工作方法）至关重要。

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  • 来源
    《Radiation Protection Dosimetry》 |2012年第1期|p.58-66|共9页
  • 作者

    Nadja Loennroth; Mirja Hirvonen-Kari; Marjut Timonen; Sauli Savolainen; Mika Kortesniemi;

  • 作者单位

    HUS Helsinki Medical Imaging Center, University of Helsinki, Haartmaninkatu 4 (POB 340), Helsinki, FI-00029 HUS, Finland;

    HUS Helsinki Medical Imaging Center, University of Helsinki, Haartmaninkatu 4 (POB 340), Helsinki, FI-00029 HUS, Finland;

    HUS Helsinki Medical Imaging Center, University of Helsinki, Haartmaninkatu 4 (POB 340), Helsinki, FI-00029 HUS, Finland;

    HUS Helsinki Medical Imaging Center, University of Helsinki, Haartmaninkatu 4 (POB 340), Helsinki, FI-00029 HUS, Finland,Department of Physics, University of Helsinki, Helsinki, Finland;

    HUS Helsinki Medical Imaging Center, University of Helsinki, Haartmaninkatu 4 (POB 340), Helsinki, FI-00029 HUS, Finland;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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