电心电图性别指数:一个持续的性别表示
Ibrahim Karabayir1, Turgay Celik1, Luke Patterson1
1Department of Cardiovascular Medicine, Wake Forest School of Medicine, Winston- Salem, NC, 27157, USA.
Biology of sex differences
|July 17, 2025
概括
人工智能分析心电图 (ECG) 来创建一个连续的心电图性别指数 (ESI). 这种新的ESI和性别不一致指数 (SDI) 与传统的二进制性别相比,提高了死亡率和器官衰竭的预测.
科学领域:
- 心脏病学 心脏病学
- 人工智能的人工智能
- 医疗信息学 医疗信息学
背景情况:
- 临床风险计算器传统上使用性别的二进制表示,未能捕捉其复杂的解剖学,生理学和代谢属性.
- 需要在临床风险评估中对性别进行更细致的描述,以提高预测准确度.
研究的目的:
- 为了开发一个持续的性别表示,ECG性别指数 (ESI),使用人工智能 (AI) 分析心电图 (ECGs).
- 评估ESI和衍生性异调指数 (SDI) 在预测全因死亡率,心力衰竭和功能衰竭的1年风险方面的实用性.
主要方法:
- 一个基于卷积神经网络的ECG-AI模型被开发出来,用于检测来自12导电心电图的性别,使用森林浸信会卫生院的大型存储库.
- 通过对ECG-AI结果进行排序的转换,创建了ESI,而SDI则是从ESI衍生出来的.
- 在 PhysioNet 的外部队列中验证了 ESI 和 SDI,并在物流回归模型中对二进制性别进行预测性能评估.
主要成果:
- 电脑心电图-人工智能模型实现了高性能,曲线下的面积在持久状态下为0.95和外部验证时为0.92.
- 男性较低的ESI得分和女性较高的ESI得分与临床结果的风险增加有关.
- ESI和SDI的准确性与二进制性别相当,但在预测临床结果方面表现更好.
结论:
- 电脑心电图性别指数 (ESI) 提供了来自电脑心电图的持续性,AI衍生的性别表示,捕捉了超越二元分类的生物细微差别.
- ESI和SDI显示出显著的潜力,作为改善临床结果的预测指标,包括死亡率,心力衰竭和功能衰竭.
- 这些新型指数为集成到临床风险计算器提供了增强的价值,超越了简单的二元性别表示.
相关概念视频
Electrocardiogram
3.2K
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...
3.2K
ECG Interpretation of Rhythms
4.0K
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....
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....
4.0K
Electrocardiogram Fundamentals
880
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...
880
Correlation between ECG and Cardiac Cycle
8.4K
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...
8.4K
Bode Plots Construction
794
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):
794
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias
168
Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...
168


