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WhARIO:对接受免疫治疗的患者进行基于全幻灯片图像的生存分析
Paul Tourniaire1, Marius Ilie2,3,4, Julien Mazières5
1Université Côte d'Azur, Inria, Epione Project-Team, Sophia Antipolis, Nice, France.
Journal of medical imaging (Bellingham, Wash.)
|May 13, 2024
概括
来自组织学幻灯片的新生物标志物预测了接受免疫检查点抑制剂 (ICI) 的肺癌患者的生存率. 这种方法显示了与当前标准相比较的性能,改善了患者风险分层和治疗结果.
科学领域:
- 在瘤学瘤学.
- 数字病理学数字病理学
- 生物标志物开发 生物标志物开发
背景情况:
- 免疫检查点抑制剂 (ICI) 是一种标准的肺癌治疗方法,可以改善存活率,但患者的反应和潜在的不良事件会变化.
- 目前的预测生物标志物往往需要额外的成像方式,缺乏效率和稳定性.
- 需要可靠,可访问的生物标志物用于肺癌免疫治疗结果.
研究的目的:
- 开发一种用于预测肺癌患者免疫治疗结果的新型生物标志物,仅使用组织学幻灯片分析.
- 评估这种新生物标志物在分层患者风险和预测存活率方面的有效性.
主要方法:
- 一个三步框架,结合对比学习和非参数聚类来分析组织学幻灯片.
- 从组织模式和邻近的特征得出特征,以训练生存分析的比例危险模型.
- 对比开发的全幻灯片基于图像的免疫治疗患者的生存分析 (WhARIO) 功能与瘤比例得分 (TPS) 生物标志物的性能.
主要成果:
- WhARIO的特点是有效地将患者分为低风险和高风险组,风险比 (HR) 为2.29.
- 标准瘤比例得分 (TPS) 达到了1.81的HR,而WHARIO和TPS的结合则产生了2.60的更高HR.
- 交叉验证和外部测试证实了WhARIO功能的稳定性和预测能力.
结论:
- WhARIO的特点为接受ICI治疗的肺癌患者的生存提供了有效和可靠的预测.
- 这种基于组织学的生物标志物实现了与当前黄金标准相当的性能,没有额外的成像方式.
- 将WHARIO特征与现有的生物标志物结合起来,可以进一步提高生存预测的准确性.
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