arXiv:2503.08609eess.IVcs.AI2025-03被引 2

用视觉变压器+模糊积分,提升脑部CT出血类型自动分类准确率

Vision Transformer for Intracranial Hemorrhage Classification in CT Scans Using an Entropy-Aware Fuzzy Integral Strategy for Adaptive Scan-Level Decision Fusion

  • 基于金字塔视觉变压器捕捉局部与全局特征
  • 通过熵感知融合策略提升多层扫描决策可靠性
  • 适合医疗AI开发者和放射科医生参考

颅内出血(ICH)是脑血管破裂导致的急症,准确及时地分类出血亚型对临床决策至关重要。本文提出一种基于金字塔视觉变压器(PVT)的模型,利用其分层注意力机制捕获脑部CT图像中的局部与全局空间依赖关系。不盲目处理所有特征,而是采用基于SHAP的特征选择方法,筛选最具判别性的成分,构建潜在特征空间并训练提升神经网络,降低计算复杂度。引入熵感知聚合策略与模糊积分算子,融合多层CT切片信息,充分考虑层间依赖关系,实现更全面可靠的扫描级诊断。实验表明,该框架在分类准确率、精确率和鲁棒性上均显著优于现有先进深度学习模型。结合SHAP特征选择、变压器建模与熵感知模糊积分融合,提供了一种可扩展且计算高效的自动化ICH亚型分类AI解决方案。

原文摘要 · Abstract (English)

Intracranial hemorrhage (ICH) is a critical medical emergency caused by the rupture of cerebral blood vessels, leading to internal bleeding within the skull. Accurate and timely classification of hemorrhage subtypes is essential for effective clinical decision-making. To address this challenge, we propose an advanced pyramid vision transformer (PVT)-based model, leveraging its hierarchical attention mechanisms to capture both local and global spatial dependencies in brain CT scans. Instead of processing all extracted features indiscriminately, A SHAP-based feature selection method is employed to identify the most discriminative components, which are then used as a latent feature space to train a boosting neural network, reducing computational complexity. We introduce an entropy-aware aggregation strategy along with a fuzzy integral operator to fuse information across multiple CT slices, ensuring a more comprehensive and reliable scan-level diagnosis by accounting for inter-slice dependencies. Experimental results show that our PVT-based framework significantly outperforms state-of-the-art deep learning architectures in terms of classification accuracy, precision, and robustness. By combining SHAP-driven feature selection, transformer-based modeling, and an entropy-aware fuzzy integral operator for decision fusion, our method offers a scalable and computationally efficient AI-driven solution for automated ICH subtype classification.

医学影像视觉变压器决策融合

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