一个人工智能支持的心电图算法,用于在鼻节律期间识别心房动患者:对结果预测的回顾性分析
Zachi I Attia1, Peter A Noseworthy1, Francisco Lopez-Jimenez1
1Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA.
Lancet (London, England)
|August 6, 2019
概括
一个人工智能 (AI) 支持的心电图 (ECG) 可以在正常的鼻节奏中检测心房动. 这种快速,即时的工具有助于识别心房动患者,改善早期诊断和治疗.
科学领域:
- 心脏病学
- 人工智能
- 医疗诊断
背景情况:
- 前庭动 (AF) 往往无症状,导致未被检测到以及相关风险,如中风和心力衰竭.
- 目前的查方法昂贵,耗时,检测率低.
- 需要快速,廉价的AF诊断.
研究的目的:
- 开发一种基于机器学习的工具,用于快速,廉价的心房动诊断.
- 使用人工智能 (AI) 来检测正常鼻腔节律中的心电图 (ECG) 信号.
主要方法:
- 开发了一个卷积神经网络 (CNN) AI模型,使用标准的10秒,12导电图,来自18岁以上的患者.
- 包括超过180,000名经过验证的心电图患者,分为培训,内部验证和测试数据集.
- 使用曲线下面面积 (AUC),精度,灵敏度,特异性和F1分数等指标评估模型性能.
主要成果:
- 一次人工智能支持的心电图检测出心房动,心房动值为0. 87,准确率为79. 4%.
- 从患者的第一个月开始加入心电图,提高了性能,AUC为0. 90和准确率为83. 3%.
- 人工智能模型在检测AF方面表现出显著的灵敏度和特异性.
结论:
- 在正常鼻节奏期间使用人工智能支持的心电图可以有效地识别患有心房动的人.
- 这项技术为早期AF检测和管理提供了有前途的方法.
- 这种人工智能工具提供了一种快速且易于使用的查方法来检测心房动.
相关概念视频
01:24ECG Interpretation of Rhythms
13.1K
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....
13.1K
01:16ECG Interpretation of Arrhythmias I: Sinus Arrhythmias
781
Arrhythmias are disturbances in the heart's rhythm that lead to abnormal heartbeats. These irregularities can originate from different parts of the heart and are classified based on their origin and nature.
Types of Arrhythmias
Sinus Node Arrhythmias
Sinus Bradycardia: Originating from the sinoatrial (SA) node, sinus bradycardia involves slower impulses, resulting in a heart rate of less than 60 beats per minute (bpm). Causes include sleep, vagal stimulation, beta-blockers, hypothyroidism,...
Types of Arrhythmias
Sinus Node Arrhythmias
Sinus Bradycardia: Originating from the sinoatrial (SA) node, sinus bradycardia involves slower impulses, resulting in a heart rate of less than 60 beats per minute (bpm). Causes include sleep, vagal stimulation, beta-blockers, hypothyroidism,...
781
02:24Predicting Reaction Outcomes
10.3K
Kinetics describes the rate and path by which a reaction occurs. In contrast, thermodynamics deals with state functions and describes the properties, behavior, and components of a system. It is not concerned with the path taken by the process and cannot address the rate at which a reaction occurs. Although it does provide information about what can happen during a reaction process, it does not describe the detailed steps of what appears on an atomic or a molecular level. On the other hand,...
10.3K
01:25ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias
488
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...
488
03:03Amyloid Fibrils
11.7K
Amyloid fibrils are aggregates of misfolded proteins. Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils.
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining,...
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining,...
11.7K
03:03Amyloid Fibrils
6.3K
6.3K