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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

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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,...
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Electrocardiogram01:29

Electrocardiogram

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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...
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相关实验视频

Updated: Jun 13, 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

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运动下心脏时间间隔使用双方式胸部电子纹身和多阶段处理.

S Bhattacharya, F Santucci, M Jankovic

    IEEE transactions on bio-medical engineering
    |September 10, 2024
    PubMed
    概括

    一个新的无线胸部电子纹身和信号处理系统准确地测量运动期间的心脏时间间隔 (CTI). 这种可穿戴技术增强了心血管监测,以更好地评估心脏健康.

    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:

    • 持续的心血管监测对于管理心脏病至关重要,但目前的可穿戴设备与运动工件作斗争.
    • 现有的方法往往缺乏准确捕捉身体活动期间心脏事件的能力.

    研究的目的:

    • 开发和验证一个无线,与胸部相匹配的传感器 (电子纹身) 和信号处理框架,用于可靠的心脏时间间隔 (CTI) 提取.
    • 评估系统在精确测量CTIs的性能,如左心室喷射时间 (LVET) 和预喷射期 (PEP),在各种体力活动期间.

    主要方法:

    • 开发了一种无线胸部电子纹身,集成心电图 (ECG) 和心震图 (SCG) 以同步获取数据.
    • 实施了多阶段信号处理框架 (FAD),结合了自适应过,集体平均和经验模式分解 (EMD) 来提取CTIs.
    • 在步行和骑自行车时监测了9名参与者,以评估运动条件下的系统性能.

    主要成果:

    • 电子纹身系统成功地提取了关键的CTIs,包括LVET,与FDA批准的床边监视器相比,有很强的协议.
    • 使用电子纹身测量预喷射期 (PEP) 与已知的发现保持一致.
    • 即使在实质性的身体运动中,也可以实现精确的CTI提取.

    更多相关视频

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    Optical Mapping of Langendorff-perfused Rat Hearts
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    Optical Mapping of Langendorff-perfused Rat Hearts

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    Published on: April 11, 2025

    434
    Retrospective Cardiac Gating with A Prototype Small-Animal X-ray Computed Tomograph
    05:32

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

    Published on: February 21, 2025

    238
    Optical Mapping of Langendorff-perfused Rat Hearts
    11:48

    Optical Mapping of Langendorff-perfused Rat Hearts

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    结论:

    • 双模胸部电子纹身与FAD框架相结合,提供了一种可靠的方法来测量各种活动期间的心脏时间间隔.
    • 这项技术代表了门诊心血管监测的重大进步,提供了增强的心脏应激反应量化.