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Related Concept Videos

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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Special considerations while measuring pulse01:13

Special considerations while measuring pulse

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Assessing a patient's pulse is a fundamental skill in healthcare, but certain situations require special attention:
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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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Pulse01:16

Pulse

844
When the heart pumps blood out, arterial elastic fibers play a crucial role in sustaining a high-pressure gradient. They expand to accommodate the received blood and then recoil - a process known as the pulse that can be either manually palpated or electronically quantified. Despite a reduction in its effect with increased distance from the heart, elements of the pulse's systolic and diastolic components persist, observable even at the arteriole level.
The pulse serves as a clinical...
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Regulation of Pulse01:20

Regulation of Pulse

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Pulse regulation involves physiological mechanisms that ensure adequate blood flow throughout the body. The heartbeat, regulated by the autonomic nervous system, is influenced by hormonal balance, physical activity, and emotional state.
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Equipments Used To Measure Blood Pressure01:30

Equipments Used To Measure Blood Pressure

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Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
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Related Experiment Video

Updated: Sep 2, 2025

An Application for Pairing with Wearable Devices to Monitor Personal Health Status
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Monitoring Pulse Rate in the Background Using Front Facing Cameras of Mobile Devices.

Celal Savur, Ruslan Dautov, Kamil Bukum

    IEEE Journal of Biomedical and Health Informatics
    |August 8, 2022
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    Summary

    This study introduces a new method to track pulse rate using a phone's camera, even during normal device use. This passive approach improves adherence for long-term health monitoring without needing wearables.

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    Area of Science:

    • Biomedical Engineering
    • Mobile Health Technology
    • Cardiovascular Monitoring

    Background:

    • Traditional pulse rate monitoring often requires active participation or dedicated wearable devices, leading to poor adherence.
    • Existing methods struggle with motion artifacts and varying light conditions in non-participatory settings.

    Purpose of the Study:

    • To develop and evaluate a novel framework for passive, non-participatory pulse rate monitoring using smartphone cameras.
    • To assess the framework's accuracy and robustness against user motion and ambient light changes.

    Main Methods:

    • Utilized the front-facing camera to capture photoplethysmography (PPG) signals passively during normal device usage.
    • Investigated signal processing, machine learning, and deep learning techniques to mitigate motion and lighting interference.
    • Conducted a two-week clinical study with 113 atrial fibrillation patients using a tablet for home monitoring.

    Main Results:

    • The proposed framework accurately monitored pulse rates in a real-world, non-participatory setting.
    • Effectively suppressed interference from spontaneous user motion and ambient light fluctuations.
    • Achieved high accuracy comparable to traditional methods, validated in a clinical cohort.

    Conclusions:

    • Passive, camera-based pulse rate monitoring is feasible and accurate for long-term health tracking.
    • This technology offers a promising solution for improving adherence in remote patient monitoring, particularly for conditions like atrial fibrillation.
    • Eliminates the need for subject participation and specialized wearable devices, enhancing user convenience.