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一种用于乳腺癌 H&E 切片中基质 TILs 评分的模块化深度学习流程

英文原题:A modular deep learning pipeline for stromal TILs scoring in breast cancer H&E slides.

查看英文原题

A modular deep learning pipeline for stromal TILs scoring in breast cancer H&E slides.

PubMed 2026/04/18(内容时间) Comput Methods Programs Biomed Q1 · IF 6.4(JCR 2025)

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研究概要

重要的是,该流程具有可解释性:每个阶段都能产生人类可读的输出(间质掩膜、间质内 TIL 分布图),且 SegGradCAM 可视化证实预测所依赖的是具有生物学意义的组织区域。这些发现表明,该流程有望成为一种可靠且临床适用的工具,用于乳腺癌病理中标准化、全自动的 TILs 定量。源代码和预训练模型已公开提供:https://github.com/Shrief-Abdelazeez/TILs-Scoring。

研究思路结论见上方概要

TIL(肿瘤浸润淋巴细胞)(TILs)是乳腺癌免疫活性的重要指标,然而在常规病理学中,在H&E切片上对其进行一致评分仍然具有挑战性。本研究提出了一种模块化深度学习流程,能够提供符合国际免疫肿瘤学生物标志物工作组(IIOBWG)指南的全自动且连续的间质TILs(sTILs)评分。

该流程结合了三个组成部分:一个通过病理学家引导的主动学习进行优化的 TIL 分割模型,一个基于增强型 DeepLabV3+ 的稳健间质分割网络,以及一个学习 TIL 在间质区域内如何分布的轻量级回归模块。一种新的自适应聚合策略将 patch 级预测整合为单一且具有临床意义的评分,同时兼顾异质性浸润。

该系统在两个独立数据集(分别为 60 例和 112 例 WSI)上进行了评估,这些数据集带有专家标注的 ROI,结果与病理学家的一致性很高(Pearson 为 0.814;ICC 为 0.808)。

展开英文摘要原文

Tumor-infiltrating lymphocytes (TILs) are an important indicator of immune activity in breast cancer, yet scoring them consistently on H&E slides remains challenging in routine pathology. This work presents a modular deep learning pipeline that delivers fully automated and continuous stromal TILs (sTILs) scores in line with the International Immuno-Oncology Biomarker Working Group (IIOBWG) guidelines.

The pipeline combines three components: a TIL segmentation model refined through pathologist-guided active learning, a robust stroma segmentation network based on an enhanced DeepLabV3+, and a lightweight regression module that learns how TILs distribute within stromal regions. A new adaptive aggregation strategy integrates patch-level predictions into a single, clinically meaningful score while accounting for heterogeneous infiltration.

The system was evaluated on two independent datasets (60 and 112 WSIs) with expert-annotated ROIs, achieving strong agreement with pathologists (Pearson of 0.814; ICC of 0.808).

Importantly, the pipeline is interpretable: each stage produces human-readable outputs (stroma masks, TIL-in-stroma maps), and SegGradCAM visualizations confirm that predictions rely on biologically relevant tissue regions. These findings demonstrate the pipeline's potential as a reliable and clinically adaptable tool for standardized, fully automated TILs quantification in breast cancer pathology. The source code and pretrained models are publicly available at https://github.com/Shrief-Abdelazeez/TILs-Scoring.

论文信息

作者
Abdelazeez S、Ahmed F、Adalid L、Siemion K、Lopez C、Lejeune M、Rashwan H、Korzynska A
单位
Laboratory of Analysis and Processing of Microscopic Image, Nalęcz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Ks. Trojdena 4, Warsaw, 02-109, Poland; System and Biomedical Engineering Department, Faculty of Engineering, Cairo University, Giza, Cairo, Egypt. Electronic address: sabdelazeez@ibib.waw.pl.Switzerland
期刊
Computer methods and programs in biomedicine2026 Aug 1
原文标识
PubMed 42013559 · DOI 10.1016/j.cmpb.2026.109374