CPSS:融合一致性规范化和伪标记技术,用于半监督的深度心血管疾病检测,使用所有未标记的心电图
Jiguang Shi1, Wenhan Liu1, Huaicheng Zhang1
1School of Physics and Technology, Wuhan University, Wuhan, 430072, China.
Computer methods and programs in biomedicine
|July 11, 2024
概括
这项研究引入了一种新型的半监督学习 (SSL) 算法,CPSS,以改善通过心电图 (ECG) 检测心血管疾病 (CVD). CPSS有效地利用未标记的ECG数据,大大减少了手动标记的需要,并使实时的心血管疾病监测成为可能.
科学领域:
- 人工智能的人工智能
- 生物医学工程 生物医学工程
- 心脏病学 心脏病学
背景情况:
- 对心电图 (ECG) 分析的监督深度学习需要广泛的标记数据.
- 手动心电图标记是耗时的,需要专门的医疗专业知识.
- 半监督学习 (SSL) 通过利用未标记的数据提供了一个解决方案.
研究的目的:
- 通过最大限度地利用未标记的心电图数据来提高心血管疾病 (CVD) 检测性能.
- 开发一种有效的方法,减少对大型手动标记的心电图数据集的依赖.
主要方法:
- 开发了一种新的SSL算法CPSS,它结合了一致性规范化和伪标签技术.
- 该方法包括在标记的ECG上进行监督学习,以及在增强的未标记的ECG上进行无监督学习.
- 在VGGNet和ResNet分类器中,使用标记和未标记数据进行了联合优化.
主要成果:
- 与监督学习相比,CPSS显著提高了准确性,在多个数据库中仅有10%的ECG被标记.
- 实现了与完全监督的方法可比的性能,同时将标签工作量减少了90%.
- 在SoC上使用训练有素的分类器开发了一个实时CVD监控系统.
结论:
- 拟议的CPSS算法有效地提高了使用未标记的ECG数据进行心血管疾病检测.
- 在深度学习应用中,CPSS显著减轻了ECG标签的负担.
- 开发的监测系统强调了CPSS的实际,现实世界的适用性.
相关概念视频
01:28Electrocardiogram Fundamentals
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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...
556
01:30Pulse rhythm
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Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
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01:29Electrocardiogram
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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...
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