动态对比增强型MRI用于评估肠道病变生长模式和结肠直肠肝转移的预后
Xiaoli Yin1, Peng Liu2, Chaoya Zhang3
1Department of Radiology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, People's Republic of China.
Journal of magnetic resonance imaging : JMRI
|July 31, 2025
概括
动态对比增强型MRI (DCE-MRI) 可以识别结直肠肝转移中的脱质细胞病变生长模式 (dHGP). 这种成像标志物与更好的存活率和对抗血管原性化疗的反应有关.
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:
- 结肠直肠肝转移 (CRLM) 中的脱质组织病理生长模式 (dHGP) 与改善的生存率和对抗血管原性化疗的反应相关.
- 使用MRI准确的术前鉴定dHGP仍然是一个临床挑战.
研究的目的:
- 开发使用动态对比增强MRI (DCE-MRI) 的预测模型,以评估dHGP的概率.
- 帮助选择患者进行抗血管原性新辅助化疗和预后评估.
主要方法:
- 这是一项回顾性双中心研究,涉及286名病理确诊的CRLM患者.
- 对DCE-MRI特征的分析,特别是通过不同阶段 (动脉,门静脉,延迟) 增强周边膜.
- 统计分析包括后勤回归,ROC曲线分析 (AUC) 和生存分析 (Kaplan-Meier,日志等级测试).
主要成果:
- 在DCE-MRI上,周边边缘增强与dHGP在所有评估阶段 (ORs从3.55到7.46) 显著相关.
- 一个基于DCE-MRI的模型显示了高的诊断性能 (AUC为0.86和0.82的开发和验证队列).
- 周围门边缘增强独立预测了所有患者和接受基于贝瓦齐祖马布的化疗的患者更长的无病生存期 (DFS) 和整体生存期 (OS).
结论:
- 在DCE-MRI上周边增强是CRLM中dHGP的可靠成像生物标志物.
- 这一发现表明了有利的预后,并有可能识别抗血管生成疗法的候选人.
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