基于MRI的体积肺结节评估 - 与计算机断层扫描进行比较
Tatjana Dell1, Andreas Feisst1, Olga Ramig1
1Department of Diagnostic and Interventional Radiology, Quantitative Imaging Lab Bonn, University Hospital Bonn, Bonn, Germany.
Frontiers in medicine
|April 23, 2025
概括
磁共振成像 (MRI) 提供了肺结节的精确体积评估,与CT扫描相提并论. 这种无辐射的MRI技术显示了对肺结节的随访和查的潜力.
科学领域:
- 放射学 放射学是一门学科.
- 医疗成像医学成像
- 肺部病理学 肺部病理学
背景情况:
- 结节体积,包括体积翻倍时间,与2D成像相比,在良性和恶性肺病变之间提供了更好的区分.
- 准确的肺结节评估对于有效的肺癌查和管理至关重要.
研究的目的:
- 评估基于磁共振成像 (MRI) 的体积评估的可行性和准确性,用于大于6毫米的肺结节.
- 为了比较基于MRI的体积测量与计算机断层扫描 (CT),当前的黄金标准.
主要方法:
- 对来自肺癌查计划的47个肺结节的23名参与者的子组分析.
- 使用1.5特斯拉MRI和低剂量CT (LDCT) 进行体积测量评估,并使用计算机辅助诊断系统.
- 包括回归和布兰德-阿尔特曼分析在内的统计分析,以评估相关性和可重现性.
主要成果:
- 基于MRI的结节体积显示出与LDCT有很强的线性关系 (r2 = 0.981,p < 0.001),没有显著的系统偏差.
- 在MRI (1.1343 ± 3.1204厘米3) 和LDCT (1.2197 ± 3.496厘米3) 之间,平均结节体积是可比的.
- 在MRI体积测量中观察到良好的内部读取器 (ICC = 0.7737) 和中度的内部读取器 (ICC = 0.7135) 可重复性.
结论:
- 基于MRI的in-vivo体积测量是一种可行且准确的方法,用于评估≥6毫米的肺结节.
- 磁共振成像体积测量显示了与CT相比的可比精度和最小偏差,表明其作为无辐射替代品的潜力.
- 这种技术对肺结节的随访和查充满希望,减少辐射暴露.
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