用AI生成无缝虚拟病理切片,解决拼接处颜色纹理不一致问题
Generating Seamless Virtual Immunohistochemical Whole Slide Images with Content and Color Consistency
- 设计新网络CC-WSI-Net,加入内容与色彩一致性监督
- 合成图像在边界处无伪影,Sox10检测准确率高
- 适合病理研究与临床辅助诊断场景
免疫组织化学(IHC)染色在病理分析中至关重要,可提供多种疾病的关键诊断信息。从苏木精-伊红(H&E)染色的全切片图像(WSIs)中虚拟生成其他IHC染色,可避免昂贵的物理染色过程。然而,现有基于分块处理的虚拟WSI生成方法常在图像块边界处出现内容、纹理和颜色不一致的问题,导致伪影,影响图像质量并可能干扰临床诊断。为此,我们提出一种新型一致性WSI合成网络CC-WSI-Net,将GAN模型扩展为生成无缝合成的全切片图像。该网络引入内容与色彩一致性监督模块,确保跨块一致性,并在保持黑色素细胞检测中Sox10免疫组化准确性的同时实现高质量合成。通过大量图像质量分析、客观检测评估及病理科医生主观调查验证了方法的有效性。本方法为高级虚拟染色技术提供了高质量合成图像支持,具有广阔的研究与临床应用前景。
原文摘要 · Abstract (English)
Immunohistochemical (IHC) stains play a vital role in a pathologist's analysis of medical images, providing crucial diagnostic information for various diseases. Virtual staining from hematoxylin and eosin (H&E)-stained whole slide images (WSIs) allows the automatic production of other useful IHC stains without the expensive physical staining process. However, current virtual WSI generation methods based on tile-wise processing often suffer from inconsistencies in content, texture, and color at tile boundaries. These inconsistencies lead to artifacts that compromise image quality and potentially hinder accurate clinical assessment and diagnoses. To address this limitation, we propose a novel consistent WSI synthesis network, CC-WSI-Net, that extends GAN models to produce seamless synthetic whole slide images. Our CC-WSI-Net integrates a content- and color-consistency supervisor, ensuring consistency across tiles and facilitating the generation of seamless synthetic WSIs while ensuring Sox10 immunohistochemistry accuracy in melanocyte detection. We validate our method through extensive image-quality analyses, objective detection assessments, and a subjective survey with pathologists. By generating high-quality synthetic WSIs, our method opens doors for advanced virtual staining techniques with broader applications in research and clinical care.
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