Comparison between external and internal doses to the thyroid after the Fukushima Daiichi Nuclear Power Plant accident.
J Radiat Res
; 64(2): 387-398, 2023 Mar 23.
Article
en En
| MEDLINE
| ID: mdl-36715176
To analyze the association between radiation dose and thyroid cancer after the 2011 Fukushima Daiichi Nuclear Power Plant (FDNPP) accident, external doses have often been used because of the difficulty to estimate internal thyroid doses individually due to the lack of human data. However, no evaluation has been made as to whether external dose is a good surrogate marker for internal thyroid dose individually. This study aimed at analyzing the relationship between external doses and internal thyroid doses estimated by recently developed methodology. For four municipalities affected by the accident, 200 individuals aged under 20 at the time of the accident per municipality were randomly selected, and their external and internal thyroid doses and their ratios were estimated individually. In a separate analysis, median and arithmetic mean values for external thyroid doses estimated for persons of 16 municipalities that included the above four were compared with those for previously estimated internal thyroid doses. The ratios of the median of internal thyroid dose to that of external thyroid dose in these 16 municipalities ranged from 0.56 to 13.8 for 15-year-old children and 0.91 to 21.1 for 1-year-old children. No consistent relationship between external and internal thyroid doses was found in all 16 municipalities. Thus, thyroid doses from both external and internal exposures should be used to analyze the association between radiation dose and thyroid cancer detection rates for persons who lived in Fukushima Prefecture at the time of the FDNPP accident. (240).
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Neoplasias de la Tiroides
/
Monitoreo de Radiación
/
Accidente Nuclear de Fukushima
Límite:
Adolescent
/
Aged
/
Child
/
Humans
/
Infant
País/Región como asunto:
Asia
Idioma:
En
Revista:
J Radiat Res
Año:
2023
Tipo del documento:
Article
País de afiliación:
Japón
Pais de publicación:
Reino Unido