Long-term electrocardiogram signal analysis method and system based on sparse self-attention

By employing a sparse self-attention-based long-term ECG signal analysis method, the accuracy problem of existing systems in detecting complex arrhythmias and multi-lead settings has been solved. This method enables efficient multi-lead, arbitrary-duration ECG signal analysis, improving the applicability and diagnostic efficiency of the automatic analysis system.

CN122413337APending Publication Date: 2026-07-17FUWAI HOSPITAL CHINESE ACAD OF MEDICAL SCI & PEKING UNION MEDICAL COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FUWAI HOSPITAL CHINESE ACAD OF MEDICAL SCI & PEKING UNION MEDICAL COLLEGE
Filing Date
2026-06-10
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing ECG signal analysis systems lack sufficient accuracy in identifying complex arrhythmias, subtle abnormal events, and key feature points. They are also ill-suited to diverse lead settings and rhythm relationships within longer time windows, resulting in insufficient clinical applicability and accuracy, requiring extensive manual review by physicians.

Method used

A long-term ECG signal analysis method based on sparse self-attention is adopted. Through self-supervised pre-training and multi-task supervised fine-tuning stages, combined with the sparse attention mechanism, it achieves efficient processing of multi-lead configuration and input of arbitrary duration. The integration of self-supervised pre-training and multi-task supervised fine-tuning strategies enhances the model's generalization ability.

Benefits of technology

It significantly improves the applicability and reliability of automated analysis systems, reduces the workload of clinicians, and promotes the standardization of electrocardiogram interpretation and the improvement of the efficiency of cardiovascular disease diagnosis and treatment.

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Abstract

基于稀疏自注意力的长时程心电信号分析方法及系统,包括自监督预训练阶段、多任务监督微调阶段和推理阶段,自监督预训练阶段通过训练数据的心电信号,得到预训练后的通用模型;多任务监督微调阶段根据带多任务标注标签的微调数据,得到微调后的目标模型;推理阶段将待分析信号数据输入目标模型,得到预测结果:心拍分类结果、异常事件识别结果及特征点预测结果。本发明支持多导联配置、任意时长输入,并能高效处理超长时程心电信号;在提升模型泛化能力的同时显著降低对大规模标注数据的依赖,显著提升了自动分析系统的适用性和可靠性,有效减轻临床医生的工作负担,并进一步推动心电图判读的标准化与心血管疾病诊疗效率的整体提升。
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