可解释的基于PET的息地建模用于预测侵袭性肺腺癌中术后复发风险
Cheng Zheng1, Yujie Cai1, Jiangfeng Miao1
1Department of Nuclear Medicine, Affiliated Hospital of Nantong University, Nantong, JiangSu, China.
Annals of surgical oncology
|December 2, 2025
概括
这项研究开发了一种基于FDG PET的新型[18F]放射学模型,用于预测肺部侵入性腺癌 (IAC) 的复发. 息地成像方法准确识别高风险患者,改善术后管理决策.
科学领域:
- 在瘤学瘤学.
- 放射学 放射学是一门学科.
- 医疗成像医学成像
背景情况:
- 术后复发对于肺部可切除的侵入性腺癌 (IAC) 患者来说是一个重大挑战.
- 当前的PET参数和整个瘤放射学可能无法完全捕捉与复发风险相关的异质性.
研究的目的:
- 开发和验证一个可解释的放射学模型,使用[18F]FDG PET衍生的息地成像.
- 为了能够个性化预测IAC患者的术后复发风险.
主要方法:
- 对156名接受了手术前[18F]FDG PET/CT的IAC患者进行了回顾性分析.
- 内息地被确定使用无监督集群的voxel-wise放射性特征.
- 一个综合模型整合了临床变量和息地放射学来进行预测,并通过ROC,校准和决策曲线分析进行了验证.
主要成果:
- 基于息地的组合模型在测试队列中实现了0.823的AUC,证明了高预测性能,良好的校准和临床效用.
- 根据模型分层的高风险和低风险组之间观察到无病生存率 (DFS) 的显著差异.
- 使用Shapley添加式解释 (SHAP) 证实了模型的解释性.
结论:
- 开发的基于PET的息地放射学模型提供了一种非侵入性和可解释的方法,用于在IAC中进行手术前预测复发.
- 该工具可以识别患有复发和减少DFS高风险的患者,支持风险适应的术后管理策略.
相关概念视频
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Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
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