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建议用于经常进行的儿科放射性检查的诊断参考水平.

Edel Doyle1, Matthew R Dimmock2,3, Kam L Lee4

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

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澳大利亚现在为一般放射学提出了基于体重的儿科诊断参考水平 (DRL),以帮助优化儿童的辐射剂量. 这项研究为常见的X射线成像程序建立了关键的澳大利亚参考值.

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科学领域:

  • 医学成像物理 医学成像物理
  • 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剂量至关重要.
  • 国际指导方针建议儿童患者使用重量分层的DLR.
  • 澳大利亚在一般放射学方面缺乏已发表的儿科DRL.

研究的目的:

  • 收集辐射剂量指标用于澳大利亚儿童的常见放射性投影.
  • 为澳大利亚的一般放射学提出基于体重的儿科DRL.

主要方法:

  • 从澳大利亚五个中心收集了患者体重,年龄和X射线参数的数据.
  • 设施参考水平 (FRL) 被计算为每X射线单位的中位数.
  • 当地DRLs (LDRLs) 被确定为多个单位的FRLs的第75个百分点.

主要成果:

  • 胸部,手腕,腹部,肘部和脚部是最常被X射线拍摄的儿科身体部位.
  • 建议的LDRLs从4mGy•cm2 (斜手,5-15公斤) 到884mGy•cm2 (AP骨盆,50-80公斤) 不同.

结论:

  • 在澳大利亚,成功估计了儿科放射学的基于体重的DRL.
  • 这些拟议的LDRL为儿童成像中辐射剂量优化提供了基本的参考值.