磁共振成像检测了直肠癌患者的高风险标记,在新辅助疗法后病理完整反应
Ke Zhao1,2,3, Minning Zhao4, Qing-Yang Li5
1Department of Radiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China.
JCO precision oncology
|December 10, 2025
概括
在预治疗MRI上使用瘤沉积物的磁共振 (mrTD) 是直肠癌患者实现病理完整反应 (pCR) 的关键指标. 辅助疗法对这些患者没有生存益处.
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:
- 病理完整反应 (pCR) 是直肠癌的关键预后指标.
- 获得pCR的直肠癌患者的一个子集仍然经历了复发或不良结果.
- 确定高风险的pCR患者和辅助治疗的作用仍然是争论的主题.
研究的目的:
- 评估治疗前的磁共振成像 (MRI) 标志物的预后价值在患有pCR的直肠癌患者中.
- 根据MRI发现,识别高风险的pCR患者.
- 为了评估辅助治疗在这个患者队列中的疗效.
主要方法:
- 对384名在2010年至2019年期间获得PCR的直肠癌患者进行了回顾性分析.
- 评估各种治疗前MRI标志物的预后意义.
- 使用卡普兰-梅尔曲线和日志等级测试,估计无病生存率 (DFS) 和整体生存率 (OS).
主要成果:
- 在预治疗MRI上,磁共振与瘤沉积 (mrTD) 被确定为最强的预后因素.
- 阳性mrTD (mrTD+) 显著增加了复发风险 (aHR,5.16) 和减少了OS.
- 辅助治疗没有显著改善pCR患者的预后,无论mRTD状态如何.
结论:
- 预治疗mRTD是识别pCR的高风险直肠癌患者的关键预后标志物.
- 辅助疗法似乎对pCR患者没有益处,这表明需要量身定制的治疗策略.
- 个性化治疗方法对于优化直肠癌患者实现pCR的结果至关重要.
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