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Pulse wave velocity. A new calculation method.

G Mosti1, M L Iabichella, P Picerni

  • 1Centro Studi Città di Lucca.

Minerva Cardioangiologica
|June 6, 2000
PubMed
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A new method for measuring aortic Pulse Wave Velocity (PWV) accurately identifies vascular disease. This non-invasive technique is simple, quick, and repeatable, aiding in early detection of arterial issues.

Area of Science:

  • Cardiovascular research
  • Vascular diagnostics
  • Biomedical engineering

Background:

  • Aortic Pulse Wave Velocity (PWV) is a key indicator of vascular disease.
  • Non-invasive methods assess PWV by calculating pulse wave transit time over a set distance.
  • A novel calculation method for PWV is presented.

Purpose of the Study:

  • To introduce and validate a new method for measuring aortic Pulse Wave Velocity (PWV).
  • To assess the reproducibility and repeatability of the proposed PWV measurement technique.
  • To evaluate the correlation of PWV with vascular disease risk factors.

Main Methods:

  • A duplex scanner was used to measure pulse wave transit time (TT) at carotid, aortic, and femoral arteries in 127 outpatients and 50 controls.

Related Experiment Videos

  • ECG was used to determine the interval between the R wave and the spectral systolic foot.
  • Pulse Wave Velocity (PWV) was calculated as Distance/TT; statistical analyses included ANOVA, Turkey test, and multivariate analysis.

    • Main Results:

    • PWV was significantly higher in patients compared to controls (p < 0.001).
    • Multivariate analysis revealed positive correlations between PWV and age, hypercholesterolemia, hypertension, diabetes, intima-media thickness, and arterial disease.
    • The method demonstrated high reproducibility with intra- and inter-observer variation coefficients of 4.87 +/- 1.82% and 8.06 +/- 3.16%.

    Conclusions:

    • The proposed PWV measurement method is simple, quick, reproducible, and repeatable.
    • The method effectively differentiates healthy individuals from patients with risk factors, atherosclerotic plaques, and clinical vascular disease.
    • Establishing age-specific normal values is crucial for utilizing PWV as a definitive marker for vascular disease.