一种非侵入式的节拍可视化方法,用于他的捆绑信号
S Sengottuvel1, S Shenbaga Devi2, M Sasikala2
1SQUIDs Applications Section, SQUID and Detector Technology Division, Materials Science Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, India.
概括
这项研究引入了一种新的非侵入性方法,从单个心跳中提取His捆绑信号 (HBS),克服了心电图和磁心图的挑战. 该技术在大多数受试者中成功发现了HBS,为改善心脏评估铺平了道路.
科学领域:
- 心脏病学 心脏病学
- 生物医学工程 生物医学工程
- 信号处理 信号处理
背景情况:
- 侵入性通过电生理学研究 (EPS) 记录他的束信号 (HBS) 对于确定HV间隔至关重要.
- 像身体表面潜力测绘 (BSPM) 和磁心图 (MCG) 等非侵入性方法平均许多心脏周期来估计HBS.
- 由于心房信号干扰和噪音,非侵入性地提取节拍HBS是很困难的.
研究的目的:
- 开发和验证一种新的非侵入性技术,从单个心脏周期中提取His束信号 (HBS).
- 克服现有的非侵入性方法的局限性,以捕捉HBS的节奏.
- 用磁心图 (MCG) 数据评估新方法的疗效.
主要方法:
- 开发了一种结合间隔依赖波纹值 (IDWT) 和信号空间投影 (SSP) 的方法,以从单个心跳中删除文物.
- 使用信号平均痕迹与突出的HBS作为消除文物指南.
- 将该方法应用于已知HV间隔 (来自EPS) 的21名受试者的MCG数据和5名受试者的BSPM数据.
主要成果:
- 在21名受试者中,在19名受试者中成功地从单击中提取了HBS,与EPS的时间差异在-8至11个月内.
- 在节拍间的轮中观察到对齐的HBS模式,在压力-MCG中比在BSPM中更明显.
- 确定该方法的性能适用于MCG数据,其信号噪声比至少为20dB.
结论:
- 开发的方法使 His 捆绑信号 (HBS) 的非侵入性,节拍式提取成为可能.
- 这种技术显示出更准确和更容易获得的心脏电生理学评估的希望.
- 建议在临床环境中进一步应用非侵入性HBS评估.
相关概念视频
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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
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Parts of an ECG
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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...
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01:23Holter Monitor: 24-Hour Monitoring
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Holter monitoring is a continuous electrocardiography (ECG) recording that tracks the heart's electrical activity over an extended period, generally 24 to 48 hours. This noninvasive diagnostic tool detects irregular heart rhythms that may not be captured during a standard ECG performed in a clinical setting.DeviceThe Holter monitor is a portable, small device connected to several electrodes on the patient's chest. These electrodes detect the heart's electrical signals and transmit them to the...
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