电离辐射
医学
疾病
分馏
队列
生理学
队列研究
辐射暴露
内科学
核医学
辐照
化学
物理
核物理学
有机化学
作者
Lydia B. Zablotska,Mark P. Little,Nobuyuki Hamada
出处
期刊:Radiation Research
[BioOne (Radiation Research Society)]
日期:2024-05-22
卷期号:202 (1)
摘要
Over the last two decades, there has been emerging evidence suggesting that ionizing radiation exposures could be associated with elevated risks of cardiovascular disease (CVD), particularly ischemic heart disease (IHD). Excess CVD risks have been observed in a number of exposed groups, with generally similar risk estimates both at low and high radiation doses and dose rates. In 2014, we reported for the first time significantly higher risks of IHD mortality when radiation doses were delivered over a protracted period of time (an inverse dose-fractionation effect) in the Canadian Fluoroscopy Cohort Study. Here we review the current evidence on the dose-fractionation effect of radiation exposure, discuss potential implication for radiation protection policies and suggest further directions for research in this area.
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