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Related Concept Videos

Assessment of radial pulse

Assessment of radial pulse

Assessment of Radial Pulse
The radial pulse, located at the wrist, is often the preferred site for assessing peripheral pulse because of its accessibility and dependability. The process of determining the radial pulse involves several steps:

Assessment of apical radial pulse

Assessment of apical radial pulse

Apical-Radial (A-R) Pulse Assessment
The A-R pulse assessment involves simultaneous evaluation of the apical and radial pulses. When the apical and radial pulse rates vary, this assessment helps identify a pulse deficit.
Pre-Procedural Preparation

Pulse

Pulse

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 indicator...

Pulse Assessment Sites

Pulse Assessment Sites

Pulse assessment sites are crucial in evaluating a patient's cardiovascular health. By assessing the pulsations of arteries at specific anatomical locations, healthcare professionals can gather valuable information about blood flow, heart rate, and peripheral circulation. Understanding these pulse assessment sites is essential for conducting comprehensive cardiovascular evaluations and monitoring patients' overall health. These sites are strategically chosen due to the accessibility and...

Pulse amplitude and quality

Pulse amplitude and quality

Pulse amplitude is a crucial indicator of cardiac health because it provides valuable insights into the strength of left ventricular contractions and the overall uniformity of blood circulation within the vasculature. The strength of the pulse is directly related to the force with which the heart contracts and the volume of blood being pumped.
A weak or absent pulse may indicate reduced cardiac output or poor left ventricular contraction, which can be signs of cardiovascular dysfunction or...

Special considerations while measuring pulse

Special considerations while measuring pulse

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

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Related Experiment Video

Updated: Jun 18, 2026

A Methodological Approach to Non-invasive Assessments of Vascular Function and Morphology

A Methodological Approach to Non-invasive Assessments of Vascular Function and Morphology

Published on: February 7, 2015

Endothelium function assessment with radial pulse wave signals.

Hsien-Tsai Wu¹, Chun-Ho Lee, Tsang-Chin Wu

¹Department of Electrical Engineering, National Dong Hwa University, Hualien, Taiwan. dsphans@mail.ndhu.edu.tw

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference

|December 8, 2009

Summary

This study introduces a novel air pressure sensing method for measuring blood vessel expansion to assess endothelial cell function. This technique offers a reproducible and practical alternative for early cardiovascular health self-monitoring.

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Last Updated: Jun 18, 2026

A Methodological Approach to Non-invasive Assessments of Vascular Function and Morphology

A Methodological Approach to Non-invasive Assessments of Vascular Function and Morphology

Published on: February 7, 2015

Assessing Endothelial Vasodilator Function with the Endo-PAT 2000

Assessing Endothelial Vasodilator Function with the Endo-PAT 2000

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Non-invasive Assessment of Microvascular and Endothelial Function

Non-invasive Assessment of Microvascular and Endothelial Function

Published on: January 29, 2013

Area of Science:

Biomedical Engineering
Cardiovascular Physiology
Medical Diagnostics

Background:

Endothelial cell dysfunction is an early indicator of cardiovascular disease.
Current methods for assessing endothelial function, such as Reactive Hyperemia Peripheral Arterial Tonometry (RH-PAT), can be costly and inconvenient.
Photoplethysmography (PPG) is a common technique, but its reproducibility for endothelial function assessment needs improvement.

Purpose of the Study:

To propose and validate a novel air pressure sensing method for measuring vasodilatation.
To assess the feasibility of using this method for early self-monitoring of endothelial function.
To compare the reproducibility and practicality of the proposed method against existing techniques like PPG.

Main Methods:

Developing an air pressure sensing system to measure changes in blood vessel area during stimulation.
Calculating a vasodilatation index based on waveform area changes.
Conducting reproducibility tests on 30 healthy subjects.

Main Results:

The proposed air pressure sensing method demonstrated high reproducibility in assessing endothelial function.
The technique proved to be more practical and reproducible compared to Photoplethysmography (PPG) systems.
The method allows for quick, minutes-long self-assessment of endothelial function.

Conclusions:

Air pressure sensing offers a promising, cost-effective, and convenient approach for evaluating endothelial cell function.
This method facilitates early detection of cardiovascular dysfunction and arterial stiffness through self-monitoring.
The developed technique represents a significant improvement over existing methods for non-invasive endothelial function assessment.