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RADIATION PROTECTION DOSIMETRY FOR DIAGNOSTIC RADIOLOGY PATIENTS

机译:诊断放射病患者的辐射防护剂量

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摘要

The radiation protection of patients undergoing medical X-ray examinations is governed by the principles of justification and optimisation. Radiation dosimetry is required to inform medical practitioners of the levels of exposure and hence the risks from the diagnostic procedures that they have to justify and to assist the operators of X-ray imaging equipment to determine whether their procedures are optimised. This paper describes the main dosimetric methods that have been developed to meet these requirements. Suitable radiation risk projection models are used to predict the risks to patients in the UK from computed tomography examinations, as a function of age at exposure and sex, and show that the lifetime risk of fatal cancer can reach 1 in 1000 for children. The concept of 'diagnostic reference levels' as an aid to the optimisation of medical exposures is described, and progress in implementing them in the UK is reported.
机译:接受医学X射线检查的患者的辐射防护受辩护和优化原则约束。需要进行放射剂量测定,以告知医生其暴露水平,并因此告知他们必须证明的诊断程序所带来的风险,并协助X射线成像设备的操作人员确定其程序是否最佳。本文介绍了为满足这些要求而开发的主要剂量学方法。合适的辐射风险预测模型用于根据计算机断层扫描检查来预测英国患者的风险,该风险是暴露时的年龄和性别的函数,并表明儿童致命性癌症的终生风险可以达到千分之一。描述了“诊断参考水平”的概念,以帮助优化医疗暴露,并报道了在英国实施这些参考水平的进展。

著录项

  • 来源
    《Radiation Protection Dosimetry》 |2004年第4期|p.409-419|共11页
  • 作者

    B. F. Wall;

  • 作者单位

    NRPB, Chilton, Didcot, Oxon, OX11 0RG, UK;

  • 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
  • 中图分类 TL72;
  • 关键词

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