在资源有限的临床环境中,使用单次扫描肺-RADS进行肺结节评估
Saoud Arshad1, Ayesha Arshad2, Mehreen Fatima1
1University Institute of Radiological Sciences and Medical Imaging Technology, Faculty of Allied Health Sciences, The University of Lahore, Lahore, Pakistan.
Current problems in diagnostic radiology
|February 10, 2026
概括
肺-RADS v2022显示使用单次CT扫描,即使没有后续成像,肺结节的诊断价值. 这种方法适用于资源有限的设置,识别关键恶性瘤预测因素,如尖端边缘和大小.
科学领域:
- 放射学和瘤学 放射学和瘤学
- 医学成像分析 医学成像分析
- 癌症查 癌症查
背景情况:
- 肺癌是全球癌症死亡的主要原因,特别是在亚洲.
- 使用Lung-RADS v2022的低剂量CT (LDCT) 查是标准的,但需要随访,限制其在资源较少的地区的使用.
研究的目的:
- 为了评估Lung-RADS v2022的诊断性能,仅使用一次基线CT扫描进行肺结节的特征.
- 在没有连续成像的环境中评估单扫描肺RADS的实用性.
主要方法:
- 两位放射科医生使用肺-RADS v2022.使用国家肺部查试验 (NLST) 审查了79个基线LDCT扫描.
- 结节被分类为良性 (1-3类) 或恶性 (4A-4X类).
- 通过逻辑回归和ROC分析分析诊断性能,以组织病理学或2年CT稳定性作为参考标准.
主要成果:
- 单扫描肺RADS实现了72%的灵敏度和90.7%的特异性,总准确率为84.8%,AUC为0.79.
- 一个多变量逻辑回归模型改善了性能 (AUC 0.92).
- 在肺RADS类别和最终诊断之间发现了显著的相关性 (p < 0.0001). 尖边缘和大小>7毫米是恶性瘤的强烈预测因素.
结论:
- 应用于基线扫描的肺RADS保留了肺结节的显著诊断价值.
- 虽然与纵向评估相比,灵敏度降低了,但单扫描肺RADS对于资源有限的设置是一个可行的选择.
- 这种方法支持肺癌查可行性,在无法获得后续CT的情况下.
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