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典型的辐射剂量和风险的比较,使用人类形象的"骨折"幻影来对5岁儿童进行常见的X射线投影

Edel Doyle¹, Matthew R Dimmock^2,3, Kam L Lee⁴

¹Department of Forensic Medicine, Monash University, Melbourne, Victoria, Australia.

Journal of medical radiation sciences

|August 21, 2023

概括

这项研究使用幻影在澳大利亚建立了X射线的初始儿科诊断参考水平 (DRL). 这些发现表明,对于常见的儿科放射程序,辐射风险最小.

科学领域:

医学物理医学物理
辐射保护辐射保护
儿科放射学儿科放射学

背景情况:

诊断参考水平 (DRL) 对于优化医学成像中的辐射保护至关重要.
澳大利亚目前缺乏用于常规放射学的出版儿科DRL.
确定这些水平对于指导儿童辐射剂量管理至关重要.

研究的目的:

为了确定儿童X射线检查的典型辐射剂量和风险.
为澳大利亚儿科放射科的5岁/20公斤儿童幻影提供参考值.
帮助优化儿童患者的辐射保护实践.

主要方法:

利用一个5岁的人形幻影进行20次数字放射学投影.
在三个专门的儿科放射中心使用校准的KAP计量器测量空气克尔马面积产物 (KAP).
使用PCXMC软件和BEIR VII报告估计的器官剂量,有效剂量和辐射风险.

主要成果:

典型的剂量在个人预测中从3到86mGy•cm2不等.
有效剂量从0.00004到0.07mSv不等.
对癌症和死亡的计算辐射风险被认为是"最小"到"微不足道".

结论:

该研究提供了儿科辐射剂量和风险的初始参考值.
这些发现是儿童放射学中剂量优化的指南.
这项工作是建立基于临床数据的国家儿科DRL的初步步骤.

关键词:

影像成像幻影幻影医学成像医学成像肌肉骨的肌肉骨的儿科儿科儿科辐射的影响辐射效应放射学放射学是指放射学骨架/骨的使用.

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