Numerical analysis of the physiological factors influencing the transmitral velocity curve

Author

Isaaz, K. ; Jeanraux, O. ; Henrot, A. ; Bruntz, JF ; Aliot, E.

Author_Institution

Nancy Univ., France

fYear

1992

Firstpage

279

Lastpage

282

Abstract

A mathematical model was developed to study the physiological determinants of the transmitral velocity pattern from the early to the late diastolic phase. The mathematical model is based on a coupled system of differential equations implemented by fourth order Runge-Kutta integration using a personal microcomputer. The influence of 14 different input physiological variables on the transmitral velocity curve can be studied. The model can also analyze the reflex changes that can occur in response to primary changes in physiological variables to preserve cardiac output. This model will help with the analysis of Doppler indices used for the noninvasive assessment of the ventricular diastolic function

Keywords

cardiology; haemodynamics; physiological models; Doppler indices; cardiac haemodynamics; coupled differential equations system; diastolic phase; fourth order Runge-Kutta integration; mathematical model; numerical analysis; personal microcomputer; physiological factors; transmitral velocity curve; ventricular diastolic function; Anatomy; Blood; Cardiology; Difference equations; Filling; Hemodynamics; Integral equations; Mathematical model; Numerical analysis; Orifices;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology 1992, Proceedings of

Conference_Location

Durham, NC

Print_ISBN

0-8186-3552-5

Type

conf

DOI

10.1109/CIC.1992.269392

Filename

269392