机器学习心电图模型,以区分Takotsubo综合征与心肌梗塞
Felicia H K Hakansson1, Erik Bodin2, Vincent Dutordoir2
1Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden.
European heart journal. Digital health
|September 23, 2025
概括
机器学习模型使用心电图数据有效地区分了takotsubo综合征 (TTS) 和心肌梗塞 (MI),优于人类心脏病学家. 需要进一步精细化,以提高TTS查的积极预测值.
科学领域:
- 心脏病学 心脏病学
- 人工智能的人工智能
- 医学诊断 医学诊断 医学诊断
背景情况:
- 使用机器学习 (ML) 的心电图 (ECG) 分析已经在各种心脏病中取得了成功.
- 对于诊断恐怖苏博综合征 (TTS) 的ML应用仍然有限.
- 从临床上看,区分TTS与心肌梗塞 (MI) 是很重要的.
研究的目的:
- 开发和验证基于ML的ECG模型,以区分TTS和MI.
- 将ML模型的诊断性能与心脏病学家进行比较.
主要方法:
- 使用UNet架构的神经网络在507个TTS病例和14978个MI对照中进行了训练和验证.
- 数据来源于瑞典冠状动脉血管学和血管造形学登记册.
- 模型性能使用接收器操作特征 (ROC) 曲线下的面积 (AUC),灵敏度,特异性,正预测值 (PPV) 和负预测值 (NPV) 进行评估.
主要成果:
- ML模型实现了TTS与ST升高MI (ROC AUC 0.88) 和非ST升高MI (ROC AUC 0.86) 的高区别.
- 对经过验证的MI的歧视显示ROC AUC为0.87 (灵敏度为0.75,特异性为0.83),对疑似MI的歧视显示ROC AUC为0.85 (灵敏度为0.75,特异性为0.79).
- 使用常规心电图标准的心脏病专家实现了0.71.7的较低ROC AUC.
结论:
- ML模型在区分TTS和MI时显示出高灵敏度和NPV.
- 这些模型在区分TTS和MI方面优于心脏病学家.
- 需要进一步完善模型,以提高PPV,并允许对TTS查的临床应用进行外部验证.
相关概念视频
Electrocardiogram
5.4K
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...
5.4K
Correlation between ECG and Cardiac Cycle
11.7K
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...
11.7K
Acute Coronary Syndrome III: Diagnostic Studies
218
Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
218
Cardiomyopathy I: Introduction and Classification
514
Cardiomyopathy, or CMP, is a group of diseases affecting the myocardial structure, impairing its ability to pump blood effectively. This condition can lead to arrhythmias, heart failure, or sudden cardiac death.Cardiomyopathies are classified into primary and secondary categories:Primary Cardiomyopathy refers to conditions involving only the heart muscle that are often idiopathic (of unknown cause) or genetic. They primarily affect the myocardium without the involvement of other systemic...
514
Myocarditis II: Clinical Features and Diagnostic Tests
267
Myocarditis is an inflammation of the heart muscle. The symptoms vary widely, encompassing asymptomatic presentations to severe, acute manifestations.Clinical PresentationAsymptomatic cases: In some instances, myocarditis may be asymptomatic, with the infection resolving without intervention. These cases often go undetected unless discovered incidentally through diagnostic imaging or tests conducted for other reasons.General Early Symptoms: Early symptoms of myocarditis are non-specific and can...
267
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


