arXiv:2506.10916eess.IVcs.CV2025-06被引 1

用AI自动识别病理切片中的10类伪影,提升质检效率。

Semi-Automated Quality Assurance in Digital Pathology: Tile Classification Approach

  • 将切片分块后用深度学习分类,识别10类伪影或背景
  • 在133张全切片图像上测试,多实例模型对特定伪影检测效果好
  • 混合使用单类与多类模型,适合临床病理质控场景

质量保证在数字病理学中至关重要但研究不足,微小伪影可能严重影响AI诊断模型性能。当前依赖人工逐幅审查数字化切片,耗时费力。传统图像处理方法虽可检测伪影,但未充分利用深度学习提升准确率与扩展性。本文提出一种AI算法,通过分析切片瓦片,将每块分类为10类预定义伪影之一或背景,实现伪影定位并生成关注区域图。该算法引导人工仅检查受污染区域,大幅减少审查时间。基于内部档案及癌症基因组图谱(TCGA)共选取133张全切片图像,使用自研软件ZAPP(梅奥诊所,杰克逊维尔)标注10类伪影。对比不同模型与瓦片尺寸的消融实验后选定InceptionResNet。分别训练单类伪影模型,并构建包含表现良好伪影(杂音、褶皱、笔迹)的有限多实例模型。结果表明,采用单类二分类模型与多实例模型相结合的混合设计,可优化各类伪影的检测效果。

原文摘要 · Abstract (English)

Quality assurance is a critical but underexplored area in digital pathology, where even minor artifacts can have significant effects. Artifacts have been shown to negatively impact the performance of AI diagnostic models. In current practice, trained staff manually review digitized images prior to release of these slides to pathologists which are then used to render a diagnosis. Conventional image processing approaches, provide a foundation for detecting artifacts on digital pathology slides. However, current tools do not leverage deep learning, which has the potential to improve detection accuracy and scalability. Despite these advancements, methods for quality assurance in digital pathology remain limited, presenting a gap for innovation. We propose an AI algorithm designed to screen digital pathology slides by analyzing tiles and categorizing them into one of 10 predefined artifact types or as background. This algorithm identifies and localizes artifacts, creating a map that highlights regions of interest. By directing human operators to specific tiles affected by artifacts, the algorithm minimizes the time and effort required to manually review entire slides for quality issues. From internal archives and The Cancer Genome Atlas, 133 whole slide images were selected and 10 artifacts were annotated using an internally developed software ZAPP (Mayo Clinic, Jacksonville, FL). Ablation study of multiple models at different tile sizes and magnification was performed. InceptionResNet was selected. Single artifact models were trained and tested, followed by a limited multiple instance model with artifacts that performed well together (chatter, fold, and pen). From the results of this study we suggest a hybrid design for artifact screening composed of both single artifact binary models as well as multiple instance models to optimize detection of each artifact.

数字病理伪影检测AI质检深度学习

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