相关实验视频

Updated: Jun 24, 2025

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System

Published on: April 11, 2025

机器学习心电图波形和心磁共振,用于心脏再同步治疗后的反应和生存

Derek J Bivona¹, Sona Ghadimi², Yu Wang²

¹Department of Medicine, University of Virginia Health System, Charlottesville, VA 22903, USA; Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22903, USA.

Computers in biology and medicine

|June 8, 2024

概括

使用心电图 (ECG) 的新机器学习方法可以更好地预测哪些心力衰竭患者将从心脏再同步治疗 (CRT) 中受益. 这提高了心力衰竭与减少喷射率 (HFrEF) 的个性化治疗.

科学领域:

心脏病学心脏病学
生物医学工程生物医学工程
机器学习在医学中的应用

背景情况:

心脏再同步疗法 (CRT) 改善了心力衰竭的结果,减少了喷射分数 (HFrEF).
许多患者对CRT没有良好的反应,因此需要更好的患者选择.
通过利用可访问的诊断工具,可以改进当前的选择方法.

研究的目的:

开发和验证一种机器学习方法,使用12导电心电图 (ECG) 波形来预测HFrEF患者的CRT反应.
将新型心电图分析方法的性能与手动心电图解释和心磁共振 (CMR) 的性能进行比较.

主要方法:

功能主要组件分解 (FPCD) 应用于心电图波形以提取特征.
机器学习模型使用五倍交叉验证进行了训练和验证.
考克斯比例危险回归和高斯混合模型用于生存分析和群体分层.

主要成果:

基于FPCD的ECG分析在预测CRT响应方面表现优异,与手动ECG解释相比.
FPCD的性能与更昂贵的基于CMR的方法相提并论.
发现FPCD和CMR预测器是独立的,这表明一个协同预测模型.

结论:

一种新的FPCD对心电图分析的方法提供了一种具有成本效益和准确的方法,用于HFrEF中CRT后的预后.
这种方法可以帮助个性化治疗策略,并优化CRT的患者选择.
整合电气 (ECG) 和机械 (CMR) 数据提供了一个协同模型来预测CRT反应和生存.

关键词:

心脏再同步治疗心脏再同步治疗电心电图 (ECG) 是一种心电图.功能主要组件分解心脏衰竭是因为心脏衰竭.机器学习是机器学习.磁共振成像技术磁共振成像技术

更多相关视频

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

Published on: December 11, 2017

Analyzing Long-Term Electrocardiography Recordings to Detect Arrhythmias in Mice

Analyzing Long-Term Electrocardiography Recordings to Detect Arrhythmias in Mice

Published on: May 23, 2021

相关概念视频

Electrocardiogram

Electrocardiogram

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...

Pulse rhythm

Pulse rhythm

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...

ECG Interpretation of Rhythms

ECG Interpretation of Rhythms

An electrocardiogram (ECG)graphically represents the heart's electrical activity on ECG paper or a monitor.
Components of the Electrocardiogram
The primary components of a normal ECG waveform in Normal sinus rhythm(NSR) include the P wave, PR interval, QRS complex, ST segment, T wave, and occasionally a U wave.
ECG waveforms are divided by vertical and horizontal lines at standard intervals.
The horizontal axis measures time and rate, and the vertical axis measures amplitude or voltage....