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Related Concept Videos

Pulse01:16

Pulse

2.5K
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...
2.5K
Assessing Blood pressure using a doppler ultrasound01:19

Assessing Blood pressure using a doppler ultrasound

3.0K
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.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
3.0K
Special considerations while measuring pulse01:13

Special considerations while measuring pulse

1.0K
Assessing a patient's pulse is a fundamental skill in healthcare, but certain situations require special attention:
1.0K
Equipments Used To Measure Blood Pressure01:30

Equipments Used To Measure Blood Pressure

3.4K
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...
3.4K

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Related Experiment Video

Updated: May 5, 2026

Pulse Wave Velocity Testing in the Baltimore Longitudinal Study of Aging
06:08

Pulse Wave Velocity Testing in the Baltimore Longitudinal Study of Aging

Published on: February 7, 2014

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Improved pulse wave velocity estimation using an arterial tube-load model.

Mingwu Gao, Guanqun Zhang, N Bari Olivier

    IEEE Transactions on Bio-Medical Engineering
    |November 23, 2013
    PubMed
    Summary

    New techniques improve pulse wave velocity (PWV) estimation by analyzing entire waveforms, not just feet. This arterial stiffness measurement offers more robust and accurate arterial stiffness monitoring for patients.

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    Related Experiment Videos

    Last Updated: May 5, 2026

    Pulse Wave Velocity Testing in the Baltimore Longitudinal Study of Aging
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    Pulse Wave Velocity Testing in the Baltimore Longitudinal Study of Aging

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    Ultrasound-based Pulse Wave Velocity Evaluation in Mice
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    Measuring the Carotid to Femoral Pulse Wave Velocity Cf-PWV to Evaluate Arterial Stiffness
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    Measuring the Carotid to Femoral Pulse Wave Velocity Cf-PWV to Evaluate Arterial Stiffness

    Published on: May 3, 2018

    17.8K

    Area of Science:

    • Cardiovascular physiology
    • Biomedical engineering
    • Medical diagnostics

    Background:

    • Arterial stiffness is a key indicator of cardiovascular health.
    • Pulse wave velocity (PWV) is the primary noninvasive measure of arterial stiffness.
    • Conventional PWV estimation relies on foot-to-foot time delays, potentially ignoring wave reflections.

    Purpose of the Study:

    • To develop and evaluate novel techniques for improved PWV estimation.
    • To enhance the accuracy of arterial stiffness assessment.
    • To overcome limitations of conventional PWV measurement methods.

    Main Methods:

    • Developed mathematical techniques using an arterial tube-load model to eliminate wave reflections.
    • Applied techniques to estimate aortic PWV from central/peripheral blood pressure (BP) and blood velocity (BV) waveforms.
    • Evaluated techniques in anesthetized animals with wide BP variations.

    Main Results:

    • New techniques estimated PWV from entire waveforms, mathematically removing wave reflections.
    • PWV estimates from novel techniques showed better tracking of acute BP changes compared to conventional methods.
    • Lower root-mean-squared errors were observed for diastolic BP in novel techniques (3.4 mmHg vs. 5.2 mmHg for BP, 7.0 mmHg vs. 12.2 mmHg for BV/BP).

    Conclusions:

    • Arterial tube-load model-based PWV estimation techniques offer improved accuracy.
    • These methods may provide more robust arterial stiffness monitoring.
    • Further validation could lead to better patient management for hypertension and other conditions.