基于多模态信号的睡眠低通气类型自动判别方法及系统

By using multimodal signal fusion and machine learning algorithms, the problem of accurately distinguishing between obstructive hypoventilation and central hypoventilation has been solved, achieving high-precision automated discrimination and improving the diagnosis and treatment of sleep-disordered breathing.

CN121465519BActive Publication Date: 2026-07-17BEIJING INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INST OF TECH
Filing Date
2025-11-05
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies struggle to accurately distinguish between obstructive hypoventilation (OH) and central hypoventilation (CH), leading to clinical diagnostic biases. Traditional visual scoring methods are highly subjective, have low accuracy, and limited ability to discriminate based on a single feature.

Method used

By employing multimodal signal fusion technology, the system collects nasal airflow, chest and abdominal respiratory movements, blood oxygen saturation, and electroencephalogram (EEG) signals. It then combines these with machine learning algorithms to construct a classification model and extract multidimensional features such as limited inspiratory flow, chest-abdomen paradox, and event termination patterns to achieve automated discrimination.

Benefits of technology

It significantly improves the accuracy and objectivity of hypoventilation types, enhances the diagnostic precision of sleep-disordered breathing, provides reliable clinical decision support, avoids missed diagnosis of central events, and supports personalized treatment.

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Abstract

本发明公开了基于多模态信号的睡眠低通气类型自动判别方法及系统,旨在解决现有视觉评分方法主观性强、一致性差,及单一信号特征判别能力有限的技术瓶颈。本方法包括以下步骤:采集多导睡眠图(PSG)中的多模态信号,包括鼻通气气流、胸腹呼吸运动、血氧饱和度等信号;提取与低通气分型相关的多维度特征,包括吸气流量受限指标、胸腹运动协调性、事件终止模式、觉醒时序关系及睡眠阶段关联特征;基于机器学习算法对上述特征融合与优选,构建高精度分类模型,实现阻塞性与中枢性低通气自动判别。本发明解决了传统方法在低通气分型中依赖人工、特征利用不全面、判别精度不足的关键问题,为睡眠呼吸障碍精准诊断、分型及治疗策略制定提供可靠依据。
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