在沙特阿拉伯两个不同城市建立计算机断层扫描胸部和腹部的当地诊断参考水平
Amna Mohamed Ahmed1, Alamin Musa1, Afaf Medani1
1Department of Radiological Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia.
概括
这项研究评估了沙特阿拉伯的计算机断层扫描 (CT) 辐射剂量,为成人胸部和腹部扫描提出了当地诊断参考水平 (LDRL). 建议的LDRL被发现低于现有的文献值.
科学领域:
- 放射学 放射学是一门学科.
- 医疗成像医学成像
- 辐射物理 辐射物理
背景情况:
- 计算机断层扫描 (CT) 提供高分辨率成像,但存在增加辐射暴露的风险.
- 优化CT协议和建立诊断参考水平对于患者安全至关重要.
- 在CT的技术进步需要持续评估辐射剂量.
研究的目的:
- 在沙特阿拉伯评估成年人胸部和腹部检查的CT辐射剂量.
- 建议使用CT剂量指数体积 (CTDIvol) 和剂量长度产物 (DLP) 的局部诊断参考水平 (LDRL).
- 为了比较台夫和阿巴的两家医院之间的辐射剂量实践.
主要方法:
- 428名成年患者的CT扫描数据的回顾性分析 (2022年12月 - 2023年3月).
- 收集的数据包括CTDIvol,DLP,暴露参数,切片厚度,患者人口统计和形态测量.
- 根据CTDIvol和DLP的第三四分位数,为每个医院和检查类型确定了局部诊断参考水平 (LDRL).
主要成果:
- 胸部的平均DLP和CTDIvol为243mGy-cm和5.8mGy;腹部的平均DLP和CTDIvol为549mGy-cm和8.6mGy.
- 胸部的平均有效剂量为5.10mSv,腹部的有效剂量为21.10mSv.
- 建议的LDRLs:胸部 - 6.9 mGy (CTDIvol),375 mGy-cm (DLP);腹部 - 7.8 mGy (CTDIvol),747 mGy-cm (DLP). 建议的LDRLs包括:胸部 - 6.9 mGy (CTDIvol),375 mGy-cm (DLP);腹部 - 7.8 mGy (CTDIvol),747 mGy-cm (DLP). 建议的LDRLs包括:胸部 - 6.9 mGy (CTDIvol),375 mGy-cm (DLP);腹部 - 7.8 mGy (CTDIvol),747 mGy-cm (DLP).
结论:
- A医院的腹部辐射剂量高于T医院的腹部辐射剂量;胸部成像剂量相当.
- 建议的胸部和腹部CT扫描的LDRL低于报告的文献值.
- 这些发现支持需要局部DRL来优化CT成像中的辐射安全.
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