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Related Concept Videos

Electrocardiogram Fundamentals01:28

Electrocardiogram Fundamentals

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

Holter Monitor: 24-Hour Monitoring

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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...
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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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Pulse rhythm01:30

Pulse rhythm

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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...
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Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System
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A Novel Sensor-Array System for Contactless Electrocardiogram Acquisition.

Joshua Weeks, Mahmoud Elsaadany, Mathieu Lessard-Tremblay

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    Summary
    This summary is machine-generated.

    A new contactless electrocardiogram (ECG) system uses a mattress with sensors to capture heart activity through clothing. This comfortable method achieves 100% accuracy in detecting QRS complexes and heart rate.

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    Area of Science:

    • Biomedical Engineering
    • Cardiology
    • Wearable Technology

    Background:

    • Electrocardiograms (ECG) are vital for cardiac assessment.
    • Traditional ECGs require skin preparation and wet electrodes, causing patient discomfort and needing trained technicians.

    Purpose of the Study:

    • To develop and validate a novel contactless ECG system.
    • To improve patient comfort and accessibility in cardiac monitoring.

    Main Methods:

    • A mattress-based system with 128 sensors was developed to capture ECG signals.
    • The system records ECG data from the patient's back through clothing.

    Main Results:

    • The contactless system achieved 100% accuracy in QRS complex detection and heart rate estimation.
    • Other major ECG features showed a maximum error of 4% compared to a hospital-grade system.
    • Accurate ECG feature extraction was demonstrated through clothing and from the back.

    Conclusions:

    • Contactless ECG monitoring via a mattress system is feasible and accurate.
    • This technology offers a more comfortable and accessible alternative to traditional ECG methods.