在心电图信号分析中的联合转移学习方面
Wesley Chorney1, Haifeng Wang2
1Computational Engineering, Mississippi State University, Mississippi State, 39762, USA.
Computers in biology and medicine
|January 20, 2024
概括
本研究引入了一种用于心电图 (ECG) 分类的新型联合学习方法,解决了临床环境中的隐私和数据异质性. 该方法在各种数据集上展示了更好的性能,突出了当前AI医疗保健模型中潜在的高估值.
科学领域:
- 医疗保健中的人工智能
- 机器学习用于医学诊断
- 在临床环境中联合学习.
背景情况:
- 当前的人工智能 (AI) 模型在医疗保健数据上表现出很高的性能,但通常依赖于不适合临床实践的假设.
- 临床人工智能部署面临的挑战是数据异质性,分布式源和患者隐私问题.
研究的目的:
- 提出一种训练强大的心电图 (ECG) 分类器的方法,这些分类器可以处理不同的数据尺寸和机构分布.
- 为ECG分析开发一个保护隐私的联合学习框架.
- 引入一种从集中数据创建联合数据集的方法.
主要方法:
- 使用自动编码器与联合学习相结合,以解决高度异质的建模问题.
- 雇佣了麻省理工学院伯特以色列医院心律失常数据集,心脏病计算2017年挑战数据集和PTB-XL数据集.
- 从集中式数据开发了一个联合数据集创建方法.
主要成果:
- 实现了73.0%的准确性,66.6%的精度,73.0%的回忆率和69.7%的F1得分,编码维度为1000.
- 证明了多个机构ECG分类联合学习的可行性.
- 强调放松常见的培训假设使过程复杂化,但产生更现实的绩效估计.
结论:
- 拟议的联合学习方法有效地处理异质和分布式的心电图数据,同时保持患者的隐私.
- 结果表明,由于未解决的临床数据复杂性,目前在医疗保健中的AI性能估计可能被高估.
- 这种方法为评估和部署AI在临床环境中提供了更现实的框架.
相关概念视频
01:28Electrocardiogram Fundamentals
600
Introduction
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
600
01:29Electrocardiogram
2.3K
An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
2.3K