使用变压器网络从弹性心电图信号检测心跳
概括
这项研究引入了一个变压器网络,可以从心电图 (BCG) 信号中精确检测心跳,从而能够对心血管健康进行准确的心率 (HR) 和心率变化 (HRV) 监测.
科学领域:
- 生物医学工程 生物医学工程
- 心血管生理学心血管生理学
- 信号处理 信号处理
背景情况:
- 对心率 (HR) 和心率变化 (HRV) 的纵向监测对于评估心血管疾病 (CVD),睡眠质量和自主神经系统活动至关重要.
- 目前用于HR/HRV监测的方法可能是侵入性的,或者在日常环境中缺乏长期适用性.
研究的目的:
- 开发和评估一个变压器网络,通过心电图 (BCG) 信号精确地检测心跳时间.
- 使用BCG数据评估基于 HR 和 HRV 估计的基于细分和基于主体的模型的性能.
主要方法:
- 设计了一个变压器网络,从输入的BCG信号中预测心电图 (ECG) 信号,以检测心跳.
- 在三个数据集中使用基于细分和基于主题的模型评估了绩效:年轻人,老年人和组合组.
- 与基准真实心电图相关系数计算HR和平均心跳间隔 (MHBI).
主要成果:
- 与基于主体的模型相比,基于细分的模型实现了更高的性能.
- 对于HR和MHBI,使用基于细分的模型与地面真实心电图相比,获得了0.97的相关系数.
- 该模型在不同年龄组中表现出有效性.
结论:
- 使用BCG信号的非侵入性变压器网络方法可以准确地检测心跳时间,用于HR和HRV监测.
- 这种方法具有长期在家监测的巨大潜力,有助于早期发现和预防心血管问题.
- 建议采用基于细分的方法,以提高BCG的HR/HRV估计的准确性.
相关概念视频
Pulse rhythm
1.3K
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...
1.3K
Correlation between ECG and Cardiac Cycle
11.6K
The electrical signals recorded on an electrocardiogram (ECG) occur before the mechanical processes of contraction and relaxation during the cardiac cycle.
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
11.6K
Equivalent Circuits for Practical Transformers
1.3K
The practical equivalent circuits of single-phase two-winding transformers exhibit significant deviations from their idealized versions due to the inherent properties of winding resistance and finite core permeability. These properties result in real and reactive power losses, affecting the transformer's performance. Understanding these deviations is crucial for designing more efficient transformers.
In a practical transformer, each winding exhibits resistance and leakage reactance. The...
In a practical transformer, each winding exhibits resistance and leakage reactance. The...
1.3K
Electrocardiogram Fundamentals
1.4K
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...
1.4K
Bode Plots Construction
1.1K
The Bode plot is an essential tool in control system analysis, mapping the frequency response of a system through a magnitude plot and a phase plot, both against a logarithmic frequency axis. To construct a Bode plot, consider the transfer function H(ω):
1.1K
Electrocardiogram
5.3K
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...
5.3K


