Earticle

초록

영어

Background: The International Commission on Radiological Protection is preparing to provide reference dose coefficients for environmental radioiodine intake based on newly developed age-specific biokinetic models. However, the biokinetics of iodine has been reported to be strongly dependent on the dietary intake of stable iodine; for example, the thyroidal uptake of iodine may be substantially lower in iodine-rich regions than in iodine-deficient regions. Therefore, this study attempted to establish a system of age-specific thyroid dose estimation for South Koreans, whose daily iodine intakes are significantly higher than that of the world population. Materials and Methods: Korean age-specific biokinetic parameters and thyroid masses were derived based on the previously developed Korean adult model and the Korean anatomical reference data for adults, respectively. This study complied with the principles used in the development of age-specific biokinetic models for world population and used the ratios of baseline values for each age group relative to the value for adults to derive age-specific values. Results and Discussion: Biokinetic model predictions based on the Korean age-specific parameters showed significant differences in iodine behaviors in the body compared to those predicted using the model for the world population. In particular, the Korean age-specific thyroid dose coefficients for 129I and 131I were considerably lower than those calculated for the world population (25%–76% of the values for the world population). Conclusion: These differences stress the need for Korean-specific internal dose assessments for infants and children, which can be achieved by using the data calculated in this study.

목차

ABSTRACT
Introduction
Materials and Methods
1. Age-Specific Iodine Biokinetic Parameters for Koreans
2. Derivation of Age-Specific Thyroid Mass for Koreans
3. Thyroid Dose Coefficients Calculation
Results and Discussion
1. Korean Age-Specific Biokinetic Parameters
2. Biokinetic Model Prediction
3. Age-Specific Thyroid Mass and S-Value for Koreans
4. Cumulative Activity in the Thyroid and Thyroid Dose Coefficients
Conclusion
Conflict of Interest
Acknowledgements
Author Contribution
Supplementary Materials
References
Supplementary Materials

키워드

저자

• Tae-Eun Kwon [ National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences, Seoul, Korea; Department of Nuclear Engineering, Hanyang University, Seoul, Korea ] Corresponding Author
• Seokwon Yoon [ National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences, Seoul, Korea ]
• Wi-Ho Ha [ National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences, Seoul, Korea ]
• Yoonsun Chung [ Department of Nuclear Engineering, Hanyang University, Seoul, Korea ]
• Young Woo Jin [ National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences, Seoul, Korea ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  방사선방어학회지 [Journal of Radiation Protection and Research]

• 간기

  계간

• pISSN

  2508-1888

• 수록기간

  1976~2026

• 등재여부

  KCI 등재,SCOPUS

• 십진분류

  KDC 559 DDC 629