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相关概念视频

Imaging Studies for Cardiovascular System I:Echocardiography01:17

Imaging Studies for Cardiovascular System I:Echocardiography

280
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,...
280
Imaging Studies for Cardiovascular System II:Types of Echocardiography01:20

Imaging Studies for Cardiovascular System II:Types of Echocardiography

215
Echocardiography plays a role in assessing cardiac health and detecting heart conditions, with various types providing critical insights for diagnosis and treatment.
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for...
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Electrocardiogram01:29

Electrocardiogram

1.9K
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...
1.9K
Electrocardiogram Fundamentals01:28

Electrocardiogram Fundamentals

470
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...
470

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相关实验视频

Updated: May 20, 2025

Retrospective Cardiac Gating with A Prototype Small-Animal X-ray Computed Tomograph
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Retrospective Cardiac Gating with A Prototype Small-Animal X-ray Computed Tomograph

Published on: February 21, 2025

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组装深度学习算法用于结构性心脏病查,使用心电图像:目前的SHD.

Lovedeep S Dhingra1, Arya Aminorroaya1, Veer Sangha2

  • 1Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA.

Journal of the American College of Cardiology
|March 26, 2025
PubMed
概括
此摘要是机器生成的。

一个AI-ECG工具,PRESENT-SHD,使用心电图 (ECG) 图像有效地选结构性心脏病 (SHD). 这种可访问的技术有助于早期检测和心脏病风险分层.

关键词:
人工智能的人工智能是人工智能.进行心血管查.深度学习是一种深度学习.超声心电图 (Echocardiography) 是一种心声回声仪.电心电图是指心电图.预测建模预测建模结构性心脏病是一种心脏病.

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Ultrasonic Assessment of Myocardial Microstructure
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Ultrasonic Assessment of Myocardial Microstructure

Published on: January 14, 2014

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相关实验视频

Last Updated: May 20, 2025

Retrospective Cardiac Gating with A Prototype Small-Animal X-ray Computed Tomograph
05:31

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Published on: February 21, 2025

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Ultrasonic Assessment of Myocardial Microstructure
10:53

Ultrasonic Assessment of Myocardial Microstructure

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科学领域:

  • 人工智能在心脏病学中的应用
  • 对于医学成像的深度学习
  • 进行心血管疾病查.

背景情况:

  • 早期发现结构性心脏病 (SHD) 对疾病管理至关重要.
  • 对于SHD诊断至关重要的心脏成像,面临着可访问性限制.

研究的目的:

  • 开发一种自动化系统,使用12导电心电图 (ECG) 图像检测和预测多个SHD.
  • 为了提高诊断准确性,利用整体深度学习方法.

主要方法:

  • 卷积神经网络 (CNN) 开发用于从心电图像中检测单个SHD.
  • 为复合SHD查创建了一个整体XGBoost模型,即PRESENT-SHD.
  • 在多家医院,基于人口的队列 (ELSA-巴西) 和英国生物银行进行了验证.

主要成果:

  • 在测试组中,PRESENT-SHD在测试组中获得了0.886的AUROC,其灵敏度为90%和特异性为66%.
  • 该模型在不同的人口分组和心电图格式 (包括智能手机图像) 中表现一致.
  • 一个积极的PREZENT-SHD屏幕显示,新发性SHD/心力衰竭的风险增加了2至4倍.

结论:

  • PRESENT-SHD是一种经过验证的AI-ECG工具,用于从ECG图像中识别一系列的SHD.
  • 这种方法为自动化SHD查提供了一种强大,可扩展和可访问的方法.
  • 该工具促进了对心血管疾病的有效风险分层.