Pulse wave propagation and reflection in human arteries by pressure-velocity loop and impedance analysis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To investigate the mechanism and the usage of the information of pulse wave propagation and reflection in human arteries are the objects of this study. In this study, an experimental apparatus simulating human circulatory system by using silicon tubes to examine the pulse wave propagation and reflection with and without branches has been developed. We examined the effect of eight parameters, such as flow rate, tube diameter, tube thickness etc., affecting waveform, PWV (Pulse Wave Velocity) and PV loop (Pressure-Velocity Loop). Numerical analyses were also carried out, and the relation between PV Loop and local impedance was discussed. Finally, the effect of eight parameters on the PWV and PV loop were clarified. It was also found that, the PV Loop includes much information on the tube characteristics, impedance, boundary condition, tube connection and reflection condition. Therefore, the PV loop method might be promising to be used in health diagnosis systems. In addition, we found that the effects of bifurcation angle on wave propagation and reflection were so little that they can be neglected in wave calculation models.

Original languageEnglish
Title of host publication2007 Proceedings of the ASME Pressure Vessels and Piping Conference - Fluid-Structure Interaction
Pages355-363
Number of pages9
DOIs
Publication statusPublished - 2008 May 19
Externally publishedYes
Event2007 ASME Pressure Vessels and Piping Conference, PVP 2007 - San Antonio, TX, United States
Duration: 2007 Jul 222007 Jul 26

Publication series

NameAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume4
ISSN (Print)0277-027X

Conference

Conference2007 ASME Pressure Vessels and Piping Conference, PVP 2007
CountryUnited States
CitySan Antonio, TX
Period07/7/2207/7/26

ASJC Scopus subject areas

  • Mechanical Engineering

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