Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Pulse rhythm01:30

Pulse rhythm

812
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...
812
Electrocardiogram01:29

Electrocardiogram

2.4K
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...
2.4K
Electrocardiogram Fundamentals01:28

Electrocardiogram Fundamentals

612
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...
612
Holter Monitor: 24-Hour Monitoring01:23

Holter Monitor: 24-Hour Monitoring

22
Holter monitoring is a continuous electrocardiography (ECG) recording that tracks the heart's electrical activity over an extended period, generally 24 to 48 hours. This noninvasive diagnostic tool detects irregular heart rhythms that may not be captured during a standard ECG performed in a clinical setting.DeviceThe Holter monitor is a portable, small device connected to several electrodes on the patient's chest. These electrodes detect the heart's electrical signals and transmit them to the...
22
Instrumentation Amplifier01:25

Instrumentation Amplifier

531
An electrocardiography (ECG) machine is an essential piece of medical equipment used to monitor the electrical activity of the heart. It operates by detecting small electrical changes on the skin that result from the depolarization of the heart muscle during each heartbeat. However, these signals are in the microvolt range and can be easily overwhelmed by noise or interference.
To overcome this challenge, an ECG machine utilizes an instrumentation amplifier. This specialized amplifier is...
531
Correlation between ECG and Cardiac Cycle01:25

Correlation between ECG and Cardiac Cycle

6.0K
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...
6.0K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Primary ovarian diffuse large B-cell lymphoma.

BMJ case reports·2026
Same author

Pericoronary Adipose Tissue as a Predictor of Diastolic Dysfunction: A New Paradigm in Coronary Artery Disease Assessment.

International journal of heart failure·2025
Same author

A critical review of geriatric care in India with regard to the needs, challenges and opportunities: a wearable care approach.

Informatics for health & social care·2025
Same author

Carotid Artery Doppler: A Possible Non-invasive Diagnostic Approach to Assessing the Severity of Coronary Artery Disease.

Cureus·2024
Same author

Use of Oral Empagliflozin to Obtain Optimal Blood Sugar Levels for Conducting <sup>18</sup> F-FDG PET-CT in Patients with Hyperglycemia-A Pilot Study.

World journal of nuclear medicine·2023
Same author

Signal Processing Framework for the Detection of Ventricular Ectopic Beat Episodes.

Journal of medical signals and sensors·2023
Same journal

News and Product Update.

Journal of medical engineering & technology·2026
Same journal

PMMA based ultra miniaturized implantable antenna for biotelemetry applications.

Journal of medical engineering & technology·2026
Same journal

Comparative machine learning for accurate EEG-based epileptic seizure state classification using sub-band analysis.

Journal of medical engineering & technology·2026
Same journal

Genetic algorithm-optimized machine learning approaches for EEG-based silent speech decoding.

Journal of medical engineering & technology·2026
Same journal

Power transition signatures of vibroarthrographic spectrograms for diagnosing knee joint pathologies.

Journal of medical engineering & technology·2026
Same journal

News and product update.

Journal of medical engineering & technology·2026
查看所有相关文章

相关实验视频

Updated: Jul 12, 2025

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System
10:17

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System

Published on: April 11, 2025

637

无线 CardioS 框架用于持续的 ECG 采集.

N Sriraam1,2, Avvaru Srinivasulu3, V S Prakash4

  • 1Center for Medical Electronics and Computing, MS Ramaiah Institute of Technology, Bangalore, India.

Journal of medical engineering & technology
|November 1, 2023
PubMed
概括
此摘要是机器生成的。

一个新的基于织品的心电图 (ECG) 系统,CardioS,在资源有限的环境中提供持续的健康监测. 这个无线系统使用了新的干电极,显示了与传统方法相比的信号质量.

关键词:
心脏传感器 (心脏传感器)半细胞潜力是一个半细胞潜力.信号质量信号质量信号质量银尼龙织物 (Ag-NyW) 织物电极皮肤电极阻抗变化的变化.

更多相关视频

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
18:11

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis

Published on: December 28, 2012

24.3K
Optimization of Transesophageal Atrial Pacing to Assess Atrial Fibrillation Susceptibility in Mice
08:05

Optimization of Transesophageal Atrial Pacing to Assess Atrial Fibrillation Susceptibility in Mice

Published on: June 29, 2022

2.8K

相关实验视频

Last Updated: Jul 12, 2025

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System
10:17

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System

Published on: April 11, 2025

637
A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
18:11

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis

Published on: December 28, 2012

24.3K
Optimization of Transesophageal Atrial Pacing to Assess Atrial Fibrillation Susceptibility in Mice
08:05

Optimization of Transesophageal Atrial Pacing to Assess Atrial Fibrillation Susceptibility in Mice

Published on: June 29, 2022

2.8K

科学领域:

  • 生物医学工程 生物医学工程
  • 可穿戴技术可穿戴技术
  • 信号处理 信号处理

背景情况:

  • 持续的心电图 (ECG) 监测对心脏健康至关重要,但现有的系统往往昂贵或不适合资源有限的环境.
  • 干织物电极为可穿戴心电图系统提供了传统凝电极的有希望的替代方案,可能降低成本并提高用户舒适度.
  • 评估无线基于织品的ECG系统的长期性能和信号质量对于其临床采用至关重要.

研究的目的:

  • 提出和评估一种新的,低成本的,基于织品的无线心电图 (ECG) 监测系统,名为 CardioS.
  • 为了评估 CardioS 的信号质量和长期性能,使用银尼龙织物 (Ag-NyW) 干电极.
  • 将 CardioS 系统的性能与有线织电极和标准临床一次性电极进行比较.

主要方法:

  • 开发了一种无线心电图监测系统 (CardioS),使用Ag-NyW干织物电极来采集Lead-I心电图信号.
  • 研究了长时间使用 (六周) 对Ag-NyW电极阻抗的影响.
  • 测量了半电池电极潜力,以确认适合用于ECG采集.
  • 使用诸如连贯光谱,交叉相关性,信号与噪声比,峰值因子和功率光谱密度等参数评估信号质量.
  • 与有线Ag-NyW电极和Ag-AgCl凝电极相比,与心脏病学家的验证进行了 CardioS 性能比较.

主要成果:

  • 六周后,Ag-NyW电极的阻抗增加了2.5-54.6%,但仍低于关键的1 MΩ/cm2值.
  • 测量到的80mV的半电池电位证实了Ag-NyW电极适用于ECG采集.
  • 来自Ag-NyW电极的信号忠实度参数与标准一次性电极的相关性很好.
  • 心脏病学家证实了使用 CardioS 框架的五名健康受试者的良好的心电图信号采集性能.

结论:

  • 拟议的 CardioS 系统使用 Ag-NyW 干织物电极,为持续的心电图监测提供了可行的低成本解决方案.
  • 无线 CardioS 框架表现出强大的性能和与传统方法相比的信号质量.
  • 卡迪奥S非常适合在资源有限的环境中应用,解决了对可访问的持续健康监测的需求.