arXiv:2605.26190cs.LGcs.AI2026-05被引 1

用心率信号自动识别新生儿缺氧缺血性脑病,准确率达74.56%。

HRVConformer: Neonatal Hypoxic-Ischemic Encephalopathy Classification from the Heart Rate signals

论文配图:HRVConformer: Neonatal Hypoxic-Ischemic Encephalopathy Classification from the Heart Rate signals
图 1 · 摘自论文原文
  • 融合卷积与注意力机制,直接处理原始心率数据
  • 在215小时独立测试集上达AUC 83.23%、准确率74.56%
  • 适合临床辅助诊断,尤其适用于缺乏专家标注的场景

本文提出一种名为HRVConformer的新型深度学习架构,用于基于瞬时心率(HR)信号对新生儿缺氧缺血性脑病(HIE)进行分类。与依赖手工特征的传统方法不同,该模型以端到端方式直接处理原始心率信号,通过卷积-变压器混合框架捕捉局部与长程依赖关系。模型结合卷积层提取局部特征与基于Transformer的注意力机制建模全局上下文,显著提升信号表征与分类性能。训练基于包含1,573个一小时数据段的大规模心率数据集,其中259个为专家标注,其余为弱标签数据;314小时验证集用于性能评估,215小时独立测试集含专家标注用于最终测试。心率信号由改进的Pan-Tompkins算法从心电图(ECG)中提取,显著提升了信号质量与数据可用性。实验表明,HRVConformer在测试集上达到AUC 83.23%和准确率74.56%,优于Transformer、ResNet50及全卷积网络基线模型,证明了融合卷积与变压器组件在心率相关HIE分类中的优势。该方法为基于心率信号实现更精准、自动化的HIE评估提供了有前景的路径。代码已开源:https://github.com/syu-kylin/HRVConformer。

原文摘要 · Abstract (English)

This paper presents the HRVConformer, a novel deep learning architecture for the classification of hypoxic-ischemic encephalopathy (HIE) using the instantaneous heart rate (HR) signal. Unlike conventional approaches that rely on handcrafted features, HRVConformer directly processes raw HR signals in an end-to-end manner, capturing both local and long-range dependencies through a hybrid Convolution-Transformer framework. By integrating convolutional layers for local feature extraction and Transformer-based attention mechanisms for global context modelling, the architecture effectively enhances signal representation and classification performance. The model was trained using supervised learning on a large HR dataset consisting of 1,573 one-hour epochs, including 259 one-hour expert-annotated epochs and a substantial set of weakly labelled data. A 314-hour validation set provided a robust performance estimation, while an independent 215-hour dataset with expert annotations was reserved for final testing. HR signals were extracted from electrocardiogram (ECG) recordings using an improved Pan-Tompkins algorithm, which significantly enhanced both signal quality and data availability. Experimental results demonstrate that the HRVConformer achieves an AUC of 83.23\% and accuracy of 74.56\% on the test set. These results surpass the performance of the Transformer, ResNet50 and fully convolutional networks baselines, highlighting the advantages of integrating convolutional and Transformer-based components for HR-based HIE classification. The proposed method provides a promising step toward a more accurate and automated assessment of HIE using HR signals. The code is available at: https://github.com/syu-kylin/HRVConformer.

心率分析新生儿HIE分类深度学习

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