相关实验视频

Updated: Jun 29, 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

评估卷积神经网络增强型心电图,用于在专业心血管环境中检测多变性心肌病

Naomi Hirota¹, Shinya Suzuki², Jun Motogi³

¹Department of Cardiovascular Medicine, The Cardiovascular Institute, 3-2-19 Nishiazabu, Minato-Ku, Tokyo, 106-0031, Japan. n-hirota@cvi.or.jp.

Heart and vessels

|March 30, 2024

概括

卷积神经网络 (CNN) 增强的心电图 (ECG) 显示出检测多变性心肌病 (HCM) 和扩张性心肌病 (dHCM) 的前景. 虽然初始精度较低,但针对特定患者和使用亚型模型显著提高了诊断准确度.

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:

缩性心肌病变 (HCM) 和扩张性心肌病变 (dHCM) 是重要的心脏疾病.
卷积神经网络 (CNN) 增强心电图 (ECG) 对HCM和dHCM的现实诊断效果尚未得到充分证实.
准确和早期发现HCM和dHCM对于患者的管理和结果至关重要.

研究的目的:

评估CNN增强型心电图用于检测HCM和dHCM的现实世界诊断性能.
为了比较基本诊断模型与综合诊断模型 (包括亚型) 的有效性.
评估不同ECG导线配置对诊断准确性的影响.

主要方法:

来自Shinken数据库 (2010-2017年) 的19170名患者心电图的回顾性分析,其中140名患有HCM或dHCM.
开发和评估两种CNN增强的ECG模型:"基本诊断"模型和"综合诊断"模型.
对不同诊断概率和领先配置的灵敏度,积极预测率 (PPR) 和F1得分的评估.

主要成果:

"基本诊断"模型使用全心电图实现了76%的灵敏度,2.9%的PPR和0.056的F1得分.
在患有诊断概率≥0.9和心电图左心室缩 (LVH) 的患者中,表现显著改善:100%的灵敏度,8.6%的PPR,0.158的F1得分.
"综合诊断"模型进一步增强了100%灵敏度,13.0%PPR和0.230F1得分的指标. 性能与较少的线索一致,特别是那些查看侧墙的线索.

结论:

通过CNN增强的心电图显示了HCM和dHCM检测的潜力,在专注于高概率病例和纳入疾病亚型时,准确度提高.
虽然最初的真实世界的精度很低,但有针对性的应用和全面的模型可以提高诊断价值.
包括横向导线在内的心电图配置是有效的,这表明在不影响性能的情况下减少导线使用的潜力.

关键词:

人工智能的人工智能是人工智能.卷积神经网络是一种卷积神经网络.电心电图是指心电图.过度缩性心肌病变性是一种心脏病变.

更多相关视频

Cardiac Magnetic Resonance Imaging at 7 Tesla

Cardiac Magnetic Resonance Imaging at 7 Tesla

Published on: January 6, 2019

Simultaneous Video-EEG-ECG Monitoring to Identify Neurocardiac Dysfunction in Mouse Models of Epilepsy

Simultaneous Video-EEG-ECG Monitoring to Identify Neurocardiac Dysfunction in Mouse Models of Epilepsy

Published on: January 29, 2018

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...

Electrocardiogram Fundamentals

Electrocardiogram Fundamentals

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...

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...

Imaging Studies for Cardiovascular System I:Echocardiography

Imaging Studies for Cardiovascular System I:Echocardiography

Cardiac imaging studies encompass a wide range of noninvasive and minimally invasive techniques designed to visualize the heart's structure and function in detail. One such technique is echocardiography, which uses high-frequency ultrasound waves to produce detailed images of the heart, known as echocardiograms.
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion,...