Do Kyung-Hyun
Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Seoul, Korea .
J Korean Med Sci. 2016 Feb;31 Suppl 1(Suppl 1):S6-9. doi: 10.3346/jkms.2016.31.S1.S6. Epub 2016 Jan 29.
After the rapid development of medical equipment including CT or PET-CT, radiation doses from medical exposure are now the largest source of man-made radiation exposure. General principles of radiation protection from the hazard of ionizing radiation are summarized as three key words; justification, optimization, and dose limit. Because medical exposure of radiation has unique considerations, diagnostic reference level is generally used as a reference value, instead of dose limits. In Korea, medical radiation exposure has increased rapidly. For medical radiation exposure control, Korea has two separate control systems. Regulation is essential to control medical radiation exposure. Physicians and radiologists must be aware of the radiation risks and benefits associated with medical exposure, and understand and implement the principles of radiation protection for patients. The education of the referring physicians and radiologists is also important.
在包括CT或PET-CT在内的医疗设备快速发展之后，医疗照射产生的辐射剂量如今已成为人为辐射照射的最大来源。电离辐射危害的辐射防护一般原则可归纳为三个关键词：正当性、最优化和剂量限制。由于医疗辐射照射有其独特的考量因素，通常使用诊断参考水平作为参考值，而非剂量限制。在韩国，医疗辐射照射量迅速增加。为控制医疗辐射照射，韩国有两个独立的控制系统。监管对于控制医疗辐射照射至关重要。医生和放射科医生必须意识到与医疗照射相关的辐射风险和益处，并理解和落实针对患者的辐射防护原则。对转诊医生和放射科医生的教育也很重要。
