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arXiv 2502.07979cs.CV

联合建模组织学与分子标志物的癌症分类

Joint Modelling Histology and Molecular Markers for Cancer Classification

University of Cambridge(剑桥大学);University of Dundee(邓迪大学);Sun Yat-sen University Cancer Center(中山大学肿瘤防治中心)

Xiaofei Wang, Hanyu Liu, Yupei Zhang, Boyang Zhao, Hao Duan, Wanming Hu, Yonggao Mou, Stephen Price, Chao Li

AI总结:

针对癌症分类从组织学到整合分子标志物的范式转变,提出联合建模组织学与分子标志物的数字病理学方法,通过多尺度解耦、分层多任务多实例学习等模块,在胶质瘤等分类任务中性能优于现有方法,助力精准肿瘤学。

摘要:

癌症具有显著的异质性和多样的预后。准确的癌症分类对患者分层和临床决策至关重要。尽管数字病理学在推动癌症诊断和预后方面取得进展,但癌症病理学范式已从单纯依赖组织学特征转向整合分子标志物。数字病理学方法亟需满足新范式的需求。我们提出一种新颖的数字病理学方法,用于联合预测分子标志物和组织学特征,并建模它们的相互作用以进行癌症分类。首先,为缓解跨放大倍数信息传播的挑战,我们提出多尺度解耦模块,能够从高放大倍数(细胞水平)到低放大倍数(组织水平)的全切片图像中提取多尺度特征。此外,基于多尺度特征,我们提出基于注意力的分层多任务多实例学习框架,以同时预测组织学和分子标志物。再者,我们提出基于共现概率的标签相关图网络,以建模分子标志物的共现。最后,我们设计具有动态置信度约束损失和跨模态梯度调制策略的跨模态交互模块,以建模组织学和分子标志物的相互作用。我们的实验表明,我们的方法在胶质瘤、组织学特征和分子标志物分类方面优于其他最先进的方法。我们的方法有望促进精准肿瘤学的发展,并具有推动生物医学研究和临床应用的潜力。代码可在https://github.com/LHY1007/M3C2获取。

英文摘要:

Cancers are characterized by remarkable heterogeneity and diverse prognosis. Accurate cancer classification is essential for patient stratification and clinical decision-making. Although digital pathology has been advancing cancer diagnosis and prognosis, the paradigm in cancer pathology has shifted from purely relying on histology features to incorporating molecular markers. There is an urgent need for digital pathology methods to meet the needs of the new paradigm. We introduce a novel digital pathology approach to jointly predict molecular markers and histology features and model their interactions for cancer classification. Firstly, to mitigate the challenge of cross-magnification information propagation, we propose a multi-scale disentangling module, enabling the extraction of multi-scale features from high-magnification (cellular-level) to low-magnification (tissue-level) whole slide images. Further, based on the multi-scale features, we propose an attention-based hierarchical multi-task multi-instance learning framework to simultaneously predict histology and molecular markers. Moreover, we propose a co-occurrence probability-based label correlation graph network to model the co-occurrence of molecular markers. Lastly, we design a cross-modal interaction module with the dynamic confidence constrain loss and a cross-modal gradient modulation strategy, to model the interactions of histology and molecular markers. Our experiments demonstrate that our method outperforms other state-of-the-art methods in classifying glioma, histology features and molecular markers. Our method promises to promote precise oncology with the potential to advance biomedical research and clinical applications. The code is available at https://github.com/LHY1007/M3C2

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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