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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.
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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.
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To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
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Related Experiment Video

Updated: May 7, 2026

Ultrasound-based Pulse Wave Velocity Evaluation in Mice
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Local pulse wave velocity estimation using magnetic plethysmograph.

Anand Chandrasekhar, Jayaraj Joseph, Mohanasankar Sivaprakasam

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |October 11, 2013
    PubMed
    Summary

    We developed Magnetic Plethysmograph (MPG) sensors to measure local pulse wave velocity (PWV), a key indicator of arterial stiffness. Both single and dual-element sensors demonstrated effective in-vivo PWV measurement in volunteers.

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    Area of Science:

    • Biomedical Engineering
    • Cardiovascular Physiology

    Background:

    • Arterial stiffness, assessed by Pulse Wave Velocity (PWV), is a crucial cardiovascular risk factor.
    • Existing methods for PWV measurement can be complex or limited in assessing local arterial properties.

    Purpose of the Study:

    • To introduce novel Magnetic Plethysmograph (MPG) sensor technology for local PWV measurement.
    • To validate the performance of compact single-element (CS-MPG) and dual-element (D-MPG) sensors for PWV assessment.

    Main Methods:

    • Design and fabrication of a Compact Single-element MPG (CS-MPG) sensor.
    • Phantom experiments to verify CS-MPG functionality and in-vivo utility.
    • Development of a Dual-element MPG (D-MPG) sensor for local PWV evaluation.
    • Experimental characterization of D-MPG measurement error.
    • In-vivo trials on volunteers using the D-MPG sensor.

    Main Results:

    • The CS-MPG sensor demonstrated successful phantom and in-vivo PWV measurement.
    • The D-MPG sensor was developed for local PWV evaluation.
    • PWV measurement errors using the D-MPG were within acceptable limits.
    • The D-MPG sensor successfully measured local PWV in human volunteers.

    Conclusions:

    • MPG sensor technology offers a viable method for measuring local PWV.
    • Both CS-MPG and D-MPG sensors show promise for non-invasive assessment of arterial stiffness.
    • This technology has potential applications in cardiovascular health monitoring and research.