Ann ICRP. 2001;31(4):33-52.
Diagnostic reference levels (DRLs) should be used by regional, national and local authorised bodies. The numerical values of DRLs are advisory, however, implementation of the DRL concept may be required by an authorised body. The concept of DRLs allows flexibility in their selection and implementation. The present ICRP advice does not specify quantities, numerical values or details of implementation for DRLs. This is the task of the regional, national and local authorised bodies, each of which should meet the needs in its respective area. ICRP considers that any reasonable and practical approach, consistent with the advice, will improve the management of patient doses in medical imaging.
区域、国家和地方的授权机构应使用诊断参考水平（DRLs）。DRLs的数值仅供参考，不过，授权机构可能要求实施DRL概念。DRLs的概念在其选择和实施方面具有灵活性。国际放射防护委员会（ICRP）目前的建议并未规定DRLs的量值、数值或实施细节。这是区域、国家和地方授权机构的任务，每个机构都应满足其各自领域的需求。ICRP认为，任何符合该建议的合理且实用的方法都将改善医学成像中患者剂量的管理。
