让虚拟免疫染色更准,解决切片变形导致的错位问题。
PRINTER:Deformation-Aware Adversarial Learning for Virtual IHC Staining with In Situ Fidelity
- 用原型驱动分离内容与染色风格,实现精准染色迁移。
- 通过可变形配准迭代优化,保持组织结构一致性。
- 适合病理图像分析、数字切片研究的科研人员使用。
肿瘤空间异质性分析需要精确关联苏木精-伊红(H&E)形态与免疫组化(IHC)生物标志物表达,但连续切片常因空间错位严重损害原位病理解读。为获得更准确的虚拟染色结果,本文提出PRINTER,一种弱监督框架,融合原型驱动的内容-染色模式解耦与形变感知对抗学习策略,以在保留H&E细节的同时精准学习IHC染色模式。方法包含三大创新:(1) 原型驱动的染色模式迁移,实现显式内容-风格解耦;(2) 循环配准-合成框架GapBridge,通过可变形结构对齐桥接H&E与IHC域,注册特征引导跨模态风格迁移,合成输出反向优化配准;(3) 形变感知对抗学习:生成器与形变感知配准网络联合对抗训练一个专注风格的判别器。大量实验表明,PRINTER在保留H&E细节和虚拟染色保真度上显著优于现有方法,为虚拟染色提供鲁棒且可扩展的解决方案,推动计算病理学发展。
原文摘要 · Abstract (English)
Tumor spatial heterogeneity analysis requires precise correlation between Hematoxylin and Eosin H&E morphology and immunohistochemical (IHC) biomarker expression, yet current methods suffer from spatial misalignment in consecutive sections, severely compromising in situ pathological interpretation. In order to obtain a more accurate virtual staining pattern, We propose PRINTER, a weakly-supervised framework that integrates PRototype-drIven content and staiNing patTERn decoupling and deformation-aware adversarial learning strategies designed to accurately learn IHC staining patterns while preserving H&E staining details. Our approach introduces three key innovations: (1) A prototype-driven staining pattern transfer with explicit content-style decoupling; and (2) A cyclic registration-synthesis framework GapBridge that bridges H&E and IHC domains through deformable structural alignment, where registered features guide cross-modal style transfer while synthesized outputs iteratively refine the registration;(3) Deformation-Aware Adversarial Learning: We propose a training framework where a generator and deformation-aware registration network jointly adversarially optimize a style-focused discriminator. Extensive experiments demonstrate that PRINTER effectively achieves superior performance in preserving H&E staining details and virtual staining fidelity, outperforming state-of-the-art methods. Our work provides a robust and scalable solution for virtual staining, advancing the field of computational pathology.
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