从警报中学习:一种强大的学习方法,用于精确的基于光电脉冲扫描的耳前动检测,使用800万个标有不精确心律不整警报的样本
IEEE journal of biomedical and health informatics
|February 1, 2024
概括
这项研究创建了最大的数据集,用于检测心房动 (AF) 使用光电显微镜 (PPG) 信号. 一种新的方法,集群成员一致性 (CMC) 损失,有效地处理噪音标签,以改善AF检测.
科学领域:
- 生物医学工程 生物医学工程
- 心脏病学 心脏病学
- 机器学习 机器学习
背景情况:
- 心房动 (AF) 是一种普遍的心律失常症,需要及早检测和治疗,以防止严重的健康后果.
- 带有光聚缩学 (PPG) 传感器的可穿戴设备显示出AF检测的希望,但大规模的标记数据是持续监测和人口查的重大挑战.
- 现有的商业解决方案通常依赖于专有算法,限制了更广泛的研究和开发.
研究的目的:
- 为了解决缺少用于AF检测的大规模标记PPG数据的问题.
- 开发和验证一种新的方法,用于使用床边监视器报警生成大型PPG-AF数据集.
- 引入和评估一个强大的算法处理标签噪声在PPG数据,以提高AF检测准确度.
主要方法:
- 从床边的患者监视器中利用AF警报自动标记并发的PPG信号,创建了来自24100名患者的850万条记录数据集.
- 引入并开源了一个新的集群成员一致性 (CMC) 损失函数,旨在减轻噪音标签中的错误.
- 在一个杂的标签竞争中,将CMC损失与最先进的方法进行了比较,专注于PPG数据的性能.
主要成果:
- 成功生成了迄今为止最大的PPG-AF数据集,展示了大规模数据标签的实用方法.
- 与现有方法相比,拟议的CMC损失在处理标签噪声方面表现优越.
- 该CMC损失显示了对质量差的PPG信号的弹性,并提供了计算效率.
结论:
- 开发的方法提供了一个可扩展的解决方案,用于创建大型的标记PPG数据集,这对于推进AF检测至关重要.
- CMC 损失是一种有效且稳健的方法,用于减轻基于 PPG 的 AF 检测中的标签噪声,其性能优于当前的技术.
- 这项工作有助于开发更准确,更可靠的持续AF监测系统,用于门诊机构和全民查.
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