在儿科CT中基于指示的CT类别的诊断参考水平:来自国际注册表的数据
Denise Bos1,2, Yifei Wang3, Carly Stewart3
1Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany. denise.bos@uk-essen.de.
European radiology
|June 14, 2025
概括
儿科计算机断层扫描 (CT) 的诊断参考水平 (DRL) 根据年龄,解剖学和临床适应情况确定. 这些DRL旨在在不同设施中标准化CT辐射剂量,并提高患者安全.
科学领域:
- 医疗成像医学成像
- 放射学 放射学是一门学科.
- 儿科成像学 儿科成像学
背景情况:
- 计算机断层扫描 (CT) 辐射剂量由于不同的医疗指示,成像协议和机构实践而表现出显著的变化.
- 标准化辐射暴露对于优化患者安全至关重要,特别是在辐射敏感度较高的儿科患者群体中.
研究的目的:
- 为儿童CT检查建立基于年龄和症状的诊断参考水平 (DRL).
- 创建标准化的CT类别,考虑解剖区域和需要不同辐射剂量的特定临床指示.
主要方法:
- 从国际剂量注册 (143个设施,2016-2021年) 中对95 047个儿科CT扫描 (年龄在18岁以下) 的回顾性分析.
- 根据解剖学和剂量要求 (低,常规,高) 定义的14个CT类别中CTDIvol,DLP和SSDE的DRL计算.
- 美国和欧洲设施之间的头部,胸部和腹部/骨盆CT扫描常规剂量类别的比较.
主要成果:
- DRLs显示,随着患者年龄的增长 (p < 0.05) 的统计显著增加.
- CT类别被证明是有效的,显示了类别之间的剂量变化比头部和腹部/骨盆扫描的指示更大.
- 美国常规胸部和腹部/骨盆CT的DLR大约是欧洲的两倍,而头部CT的DLR是可比的.
结论:
- 根据年龄,解剖学和临床适应症分层的儿科CT已建立的DRL为剂量标准化提供了框架.
- 这些发现凸显了儿童CT辐射剂量,特别是胸部和腹部成像剂量的显著国际差异.
- 这些DRL是优化全球儿科CT实践中辐射安全和质量的宝贵工具.
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