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相关概念视频

Pulse rhythm01:30

Pulse rhythm

1.3K
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...
1.3K
Holter Monitor: 24-Hour Monitoring01:23

Holter Monitor: 24-Hour Monitoring

1.9K
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...
1.9K
Electrocardiogram01:29

Electrocardiogram

5.3K
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...
5.3K
Correlation between ECG and Cardiac Cycle01:25

Correlation between ECG and Cardiac Cycle

11.6K
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...
11.6K
Instrumentation Amplifier01:25

Instrumentation Amplifier

1.0K
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...
1.0K
Pulse Oximetry01:24

Pulse Oximetry

1.2K
Pulse oximetry, or SpO2, is a non-invasive method for continuously monitoring arterial oxygen saturation (SaO2). This procedure involves attaching a probe or sensor to the patient's fingertip, forehead, earlobe, or nose bridge. The sensor works by detecting changes in oxygen saturation levels through light signals generated by the oximeter and reflected by the pulsing blood under the probe.
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
1.2K

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相关实验视频

Updated: Jan 11, 2026

Author Spotlight: Advancing the Study of Brain-Heart Interplay with a Comprehensive EEGLAB Plugin for Multimodal Signal Analysis
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Author Spotlight: Advancing the Study of Brain-Heart Interplay with a Comprehensive EEGLAB Plugin for Multimodal Signal Analysis

Published on: April 26, 2024

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使用心电图,PCG和PPG信号融合进行综合心血管监测的多模式系统.

Khang Thanh Tran1,2, Thao Nguyen Tran1,2, Dang Nguyen Huynh1,2

  • 1Department of Biomedical Engineering, Faculty of Applied Science, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Dien Hong Ward, Ho Chi Minh City 700000, Vietnam.

Sensors (Basel, Switzerland)
|November 13, 2025
PubMed
概括

这项研究引入了一个可穿戴系统,将心电图,PCG和PPG信号结合起来,用于心血管监测. 该系统评估动脉硬性和心动脉合,为早期风险检测和远程患者护理提供潜力.

关键词:
心血管系统的心血管系统数据融合数据融合电心电图 (ECG) 是一种心电图.听力心电图 (PCG) 是一种心电图.摄影复发性脑电图 (PPG) 是一种光复发性脑电图.

更多相关视频

A Novel Digital Platform for a Monitored Home-based Cardiac Rehabilitation Program
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A Novel Digital Platform for a Monitored Home-based Cardiac Rehabilitation Program

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

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相关实验视频

Last Updated: Jan 11, 2026

Author Spotlight: Advancing the Study of Brain-Heart Interplay with a Comprehensive EEGLAB Plugin for Multimodal Signal Analysis
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A Novel Digital Platform for a Monitored Home-based Cardiac Rehabilitation Program
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A Novel Digital Platform for a Monitored Home-based Cardiac Rehabilitation Program

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

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科学领域:

  • 生物医学工程 生物医学工程
  • 心血管生理学心血管生理学
  • 可穿戴技术可穿戴技术

背景情况:

  • 综合性心血管监测对于预防性医疗保健至关重要.
  • 现有系统可能缺乏用于详细生理评估的多模式集成.
  • 可穿戴技术为持续的,非侵入性的健康跟踪提供了潜力.

研究的目的:

  • 开发和验证一种低成本,可穿戴的多式联络系统,用于心血管监测.
  • 为了整合心电图 (ECG),心声图 (PCG) 和光电图 (PPG) 信号.
  • 提取关键的生理标志物,如预喷射期 (PEP),脉冲过渡时间 (PTT) 和脉冲到达时间 (PAT).

主要方法:

  • 开发了一个集ECG,PCG和PPG传感器的可穿戴系统.
  • 使用信号融合技术来获得PEP (ECG-PCG),PTT (PCG-PPG) 和PAT (ECG-PPG).
  • 生理学标记与年龄,体重指数 (BMI) 和性别相关.

主要成果:

  • PEP显示与BMI有显著的关联,但不是年龄,表明BMI对心肌功能的影响.
  • PTT和PAT与年龄和BMI负相关,这表明它们在评估血管衰老中的有用性.
  • PAT揭示了基于性别的显著差异,突出了心血管生理差异.

结论:

  • 提出的基于融合的方法在技术上是可行的,用于心血管监测.
  • 该系统具有可扩展,预防性医疗保健和家庭监测的临床潜力.
  • 像PTT和PAT这样的衍生标记可以作为血管衰老和性别特异性的非侵入性指标.