van den Broek J G, Weatherburn H
Department of Medical Physics, Churchill Hospital, Oxford, UK.
Br J Radiol. 1994 Jan;67(793):59-62. doi: 10.1259/0007-1285-67-793-59.
Cost benefit analysis has been in use for many years as a method for making a comparison between the costs of radiation protection and the benefits of reduced radiation exposure. It is advocated by the International Commission on Radiological Protection (ICRP) and the National Radiological Protection Board (NRPB) has given more specific advice relating to the value of the man Sv to be used in the calculation of cost benefit. The purpose of this study is to investigate the changes in the NRPB advice over the last 10 years by correcting all figures for inflation and applying them to a particular radiation protection example. The example employed is a previously published case of the introduction of afterloading brachytherapy equipment at the Christie Hospital, Manchester. It has been shown that for this specific example the NRPB advice at one time led to a large cost benefit, at another time it led to a large cost deficit and later still it again gives a large cost benefit. Application of cost benefit analysis to decision making in radiation protection is therefore shown to be in need of further investigation and clarification before it can be used with confidence.
成本效益分析作为一种比较辐射防护成本与减少辐射暴露效益的方法，已经使用多年。国际放射防护委员会（ICRP）提倡使用该方法，英国国家辐射防护委员会（NRPB）针对成本效益计算中使用的人·希沃特（man Sv）的价值给出了更具体的建议。本研究的目的是通过校正所有通货膨胀数据，并将其应用于一个特定的辐射防护示例，来调查NRPB在过去10年中的建议变化。所采用的示例是先前发表的曼彻斯特克里斯蒂医院引进后装近距离放射治疗设备的案例。结果表明，对于这个特定示例，NRPB的建议一度带来了巨大的成本效益，另一时间则导致了巨大的成本亏空，后来又再次带来了巨大的成本效益。因此，在能够放心使用之前，成本效益分析在辐射防护决策中的应用还需要进一步研究和阐明。
