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Validity of an Arterial System Model: A Quantitative Evaluation
Journal article   Peer reviewed

Validity of an Arterial System Model: A Quantitative Evaluation

William J Ohley, Chiiming Kao and Dov Jaron
IEEE transactions on biomedical engineering, v BME-27(4), pp 203-211
Apr 1980
PMID: 7380434
url
https://digitalcommons.uri.edu/ele_facpubs/921View
Open

Abstract

Animals Biomedical engineering Dogs Finite difference methods Hemodynamics Impedance Measurement standards Navier-Stokes equations Predictive models Testing
The purpose of this investigation was to validate an arterial system model in a quantitative fashion. The model is based on a finite difference solution to the Navier-Stokes equations and retains certain nonlinear features of the system. Rather than apply standard error measures that test waveform correlation, the validation method used relies on the quantification of differences between the model and animals over a wide range of parametric changes. A series of functions was used to define the difference between the dependent variables of the model and corresponding hemodynamic variables of the animals. These functions were displayed as a family of three-dimensional difference surfaces which related the function value to parametric changes of the independent variables. Experimental data from three dogs were compared with model predictions. Regions of validity for the independent variables were then assessed by examining the difference surfaces.

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7 citations in Scopus

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Collaboration types
Domestic collaboration
Web of Science research areas
Engineering, Biomedical
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