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Objective Evaluation of Pulse Width Using an Array Pulse Diagram.

Zi-Juan Bi1,2, Ji Cui1, Xing-Hua Yao1

  • 1School of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.

Journal of Evidence-Based Integrative Medicine
|March 28, 2024
PubMed
Summary
This summary is machine-generated.

This study developed an objective method to measure pulse width using an array pulse diagram, correlating it with traditional Chinese medicine diagnostics. The new method accurately reflects pulse width, showing higher values in individuals with high blood pressure.

Keywords:
array pulse diagramblood pressuremain wave (h1) amplitudepulse shapepulse widthpulse-takingtraditional Chinese medicine

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Area of Science:

  • Biomedical Engineering
  • Traditional Chinese Medicine
  • Medical Diagnostics

Background:

  • Pulse width is a key diagnostic indicator in Traditional Chinese Medicine (TCM), reflecting imbalances in qi and blood.
  • Current methods for pulse width assessment lack objectivity, hindering precise diagnosis and prognosis.
  • This study aimed to develop an objective pulse width measurement technique using an array pulse diagram.

Purpose of the Study:

  • To devise an objective method for measuring pulse width using an array pulse diagram.
  • To validate the accuracy and reliability of the proposed objective pulse width measurement method.

Main Methods:

  • Collected pulse wave data using an array sensor, focusing on the h1 amplitude at the cunkou's guan position.
  • Employed a bioharmonic spline interpolation algorithm to generate a heat map of h1 amplitudes from 651 data points.
  • Calculated pulse width from the heat map and validated measurements against TCM practitioner assessments and color Doppler ultrasound of radial arteries.

Main Results:

  • The objective pulse width measurement showed strong correlation with radial artery width determined by color Doppler ultrasound.
  • Higher h1 amplitudes and increased pulse widths were observed in the high blood pressure group.
  • The maximal h1 amplitude method for pulse width determination proved comparable to ultrasound measurements.

Conclusions:

  • The maximal h1 amplitude method provides an objective and accurate approach to pulse width measurement.
  • The reliability of this objective method is confirmed by its ability to differentiate between normal and high blood pressure groups.
  • This technique offers a promising tool for objective diagnosis in TCM.