量化对比增强CT参数的附加值在区分恶性和良性固体肺结节方面
Peng Yun1,2, Zhencheng Zhan1,2, Zijing Wu1,2
1Department of Radiology, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, China.
BMC medical imaging
|July 24, 2025
概括
量化对比增强计算断层扫描 (CECT) 参数,特别是静脉相衰减值 (AVV),有助于区分恶性与良性固体肺结节 (SPN). 将这些定量测量与定性成像特征相结合,可以提高评估恶性瘤风险的诊断准确性.
科学领域:
- 放射学和成像科学 放射学和成像科学
- 瘤学和肺部医学 肺部医学
背景情况:
- 区分恶性和良性固体肺结节 (SPNs) 对于患者管理至关重要.
- 常规的胸部对比增强计算机断层扫描 (CECT) 为结节评估提供了成像数据.
研究的目的:
- 评估来自CECT的定量参数的附加值,以区分恶性和良性SPNs.
- 评估定量,定性和组合成像模型的诊断性能.
主要方法:
- 使用非增强型和CET扫描对81种病理确认的SPN进行了回顾性分析.
- 提取定量参数 (减弱值,差异值,直径) 和定性CT特征.
- 使用交叉验证和统计测试开发和验证多变量逻辑回归模型 (定性,定量,组合).
主要成果:
- 与良性SPN相比,恶性SPN表现出更高的年龄和更多的定量参数 (AVA,AVN,AVV,△AVA-N,△AVV-N,直径) (P <0.05).
- 静脉相衰减值 (AVV) 在定量参数中表现出最强的分辨力 (AUC = 0.779).
- 组合模型 (AUC = 0.900 ± 0.042) 的表现明显优于定性模型 (AUC = 0.877 ± 0.019,P = 0.016),显示了改进的校准和决策曲线性能.
结论:
- 定量CECT参数,特别是AVV,显著有助于区分恶性SPNs.
- 定量AVV与定性成像特征的整合可以提高恶性瘤风险分层的诊断准确性.
- 综合模型提供了优越的性能,用于区分恶性和良性SPNs.
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