使用CT和MRI用于结直肠癌中微卫星不稳定的术前放射学模型:系统性审查和元分析
Gianluca Capello Ingold1, João Martins da Fonseca2, Sanda Kolenda Zloić3
1Hospital Universitario Austral, Buenos Aires, Argentina. gianluca.capello@gmail.com.
Abdominal radiology (New York)
|May 10, 2025
概括
使用CT和MRI的放射学模型显示出在结肠直肠癌 (CRC) 中对微卫星不稳定性 (MSI) 的非侵入性预测具有前景. 这些模型为识别MSI状态提供了传统活检方法的潜在替代方案.
科学领域:
- 在瘤学瘤学.
- 医疗成像医学成像
- 生物标志物发现发现
背景情况:
- 微卫星不稳定性 (MSI) 是预测结直肠癌 (CRC) 治疗反应和预后的关键生物标志物.
- 目前的MSI检测方法,如PCR和免疫组织化学,依赖于瘤活检,并面临异质性和程序并发症等挑战.
- 放射学是一种非侵入性成像分析技术,为MSI状态的确定提供了一个潜在的替代方案.
研究的目的:
- 系统评估基于CT和MRI的放射学模型的诊断性能,以预测结直肠癌患者的MSI状态.
- 通过元分析综合现有研究的发现,以确定放射学在MSI检测中的可靠性.
主要方法:
- 在主要数据库 (PubMed,Embase,Cochrane图书馆,Scopus) 进行了全面的系统文献搜索.
- 包括评估CT或MRI放射性用于CRC中MSI检测的研究.
- 采用了元分析技术,包括使用随机效应模型计算聚合AUC,灵敏度和特异性.
主要成果:
- 分析包括17项研究,涉及6045名受试者.
- 基于CT的放射学模型实现了0.815的聚合AUC,而基于MRI的模型显示了更高的聚合AUC0.900.
- 通过各种分析方法观察并解决了显著的异质性.
结论:
- 放射学模型显示出作为预测结直肠癌中MSI状态的非侵入性工具的巨大潜力.
- 这些发现支持开发和验证先进的放射学模型,以改善CRC诊断,治疗选择和患者预后.
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