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Related Concept Videos

Assessment of radial pulse01:11

Assessment of radial pulse

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Related Experiment Video

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Assessing Cerebral Autoregulation via Oscillatory Lower Body Negative Pressure and Projection Pursuit Regression
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A Transfer Function Model Development for Reconstructing Radial Pulse Pressure Waveforms Using Non-Invasively

Gwanghyun Jo1, Tae-Heon Yang2, Jeong-Hoi Koo3

  • 1Department of Mathematics, Kunsan National University, 558 Daehak-ro, Gunsan-si 54150, Korea.

Sensors (Basel, Switzerland)
|October 26, 2021
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Summary

This study developed a mathematical model to estimate internal arterial pulse pressure from external tonometer readings. The model accurately reconstructs pulse waveforms, showing its effectiveness for non-invasive cardiovascular monitoring.

Keywords:
pulse pressure generatorradial pulse pressure waveformsradial transfer functionrobotic tonometry systemtonometric measurement

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Area of Science:

  • Biomedical Engineering
  • Mathematical Modeling
  • Cardiovascular Physiology

Background:

  • Arterial tonometry measures external pulse pressure.
  • Internal pulse pressure is crucial for cardiovascular assessment.
  • Accurate estimation of internal pulse pressure non-invasively remains a challenge.

Purpose of the Study:

  • Develop a mathematical model to link external tonometer pulse pressure to internal arterial pulse pressure.
  • Establish a transfer function for accurate internal pulse pressure waveform reconstruction.
  • Validate the model using a robotic system and artificial vasculature.

Main Methods:

  • Utilized a radial pulse generation system and a robotic tonometry system.
  • Developed a transfer function model based on pulse and mechanical characterization testing.
  • Reconstructed and compared internal pulse waveforms with model predictions.

Main Results:

  • The developed model accurately reproduced internal pulse waveforms.
  • Reconstructed waveforms showed minimal relative errors compared to internal measurements.
  • Demonstrated the model's effectiveness in estimating actual intra-arterial pulse pressures.

Conclusions:

  • The mathematical model successfully translates external tonometer measurements to internal arterial pulse pressure.
  • This approach offers a promising non-invasive method for assessing arterial hemodynamics.
  • The validated model can enhance the diagnostic capabilities of arterial tonometry.