[18F]FDG PET-CT放射学特征用于预测非小细胞肺癌中新辅助化学免疫治疗的病理完整反应:一项多中心研究
Minglei Yang1, Xiaoxiao Li2, Chuang Cai3
1Department of Thoracic Surgery, Ningbo No. 2 Hospital, Ningbo, China.
European radiology
|December 21, 2023
概括
使用18F-氧葡萄糖正子发射断层扫描-计算机断层扫描 (FDG PET-CT) 的新放射学模型有效预测接受新辅助化疗免疫治疗的非小细胞肺癌 (NSCLC) 患者的病理完整反应 (pCR).
科学领域:
- 放射学和医学成像技术
- 在瘤学瘤学.
- 核医学就是核医学.
背景情况:
- 预测对新辅助化学免疫治疗的病理完整反应 (pCR) 对于个性化非小细胞肺癌 (NSCLC) 治疗至关重要.
- 目前对NSCLC治疗反应的预测标记是有限的,需要开发新的方法.
- F-fluorodeoxyglucose正子发射断层扫描-计算机断层扫描 (FDG PET-CT) 提供了关于瘤代谢和反应的宝贵见解.
研究的目的:
- 开发和验证使用[18F]FDG PET-CT图像的放射学模型,用于预测NSCLC中新辅助化疗免疫治疗的PCR.
- 评估与传统成像指标相比,开发的放射学模型的性能.
主要方法:
- 在5个中心接受新辅助化疗免疫治疗的185名NSCLC患者队列被追溯分析.
- 从[18F]FDG PET-CT图像中提取了放射学特征,并使用最少绝对收缩和选择操作员 (LASSO) 方法构建了一个预测模型.
- 用验证队列中接收器操作特征曲线 (AUC) 下的面积来评估模型性能.
主要成果:
- 一个包含9个PET-CT特征的放射学模型被选择用于pCR预测.
- 在验证队列中,PET-CT放射学模型实现了0.818的AUC,超过PET放射学 (0.728),CT放射学 (0.732) 和最大标准化吸收值 (0.603) (p < 0.05).
- 较高的放射性评分与参与抑制瘤增殖和增强抗瘤免疫细胞透的上调途径相关.
结论:
- 开发的FDG PET-CT放射学模型在预测NSCLC中新辅助化疗免疫治疗的PCR方面表现出显著的能力.
- 这种放射学方法有可能在肺癌患者中个性化新辅助化学免疫治疗策略.
- 这些发现表明,放射学可以识别可能从特定的新辅助疗法中受益的患者,从而实现个性化治疗.
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