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Related Concept Videos

Special considerations while measuring pulse01:13

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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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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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The pulse is one of the most fundamental physiological indicators of the body's cardiovascular health. It is the rhythmic expansion and contraction of the arterial walls in response to the pressure generated by the heart's pumping action.
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Related Experiment Video

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Pulse Wave Velocity Testing in the Baltimore Longitudinal Study of Aging
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Reliability assessment for pulse wave measurement using artificial pulse generator.

Chi-Wei Chang1, Wei-Kung Wang

  • 1Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University , Taipei, Taiwan , ROC and.

Journal of Medical Engineering & Technology
|February 20, 2015
PubMed
Summary
This summary is machine-generated.

This study validated an artificial pulse generator for assessing pulse wave measurement (PWM) devices. It confirmed the TD01C system

Keywords:
Blood pressureharmonic analysisradial pulse wavereproducibility

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Area of Science:

  • Biomedical Engineering
  • Medical Device Technology
  • Physiological Measurement

Background:

  • Accurate pulse wave measurement (PWM) is crucial for cardiovascular assessment.
  • Evaluating the intrinsic reliability of PWM devices is essential for clinical validity.
  • Existing methods for device reliability testing may have limitations.

Purpose of the Study:

  • To assess the intrinsic reliability of pulse wave measurement (PWM) devices.
  • To validate an artificial pulse generator system for PWM device evaluation.
  • To investigate the effectiveness of device exclusion criteria in improving measurement consistency.

Main Methods:

  • Constructed a stable artificial pulse generator system to produce periodic pulse waves.
  • Evaluated the TD01C system using test-re-test and inter-device reliability assessments.
  • Analyzed 11 harmonic components of pulse waves using Fourier analysis, calculating coefficient of variation (CV) and intra-class correlation coefficient (ICC).
  • Applied pre-specified device exclusion criteria to enhance measurement consistency.

Main Results:

  • The artificial pulse generator system demonstrated high stability (ICCs > 0.95, p < 0.001).
  • The TD01C system showed high test-re-test reliability (ICCs > 0.95, p < 0.001) with CVs < 3%.
  • Device exclusion criteria successfully identified and removed defective devices, reducing inter-device CVs and improving consistency.

Conclusions:

  • An artificial pulse generator system is feasible for assessing the intrinsic reliability of PWM devices.
  • The TD01C system is reliable for repeated pulse wave measurements.
  • Combining reliability assessment with device exclusion criteria offers a robust method for selecting and evaluating high-quality PWM devices.