## A mathematical model of the right ventricular muscle geometry and mass.

### Détails

ID Serval

serval:BIB_6878362C8B35

Type

**Article**: article d'un périodique ou d'un magazine.

Collection

Publications

Fonds

Titre

A mathematical model of the right ventricular muscle geometry and mass.

Périodique

Journal of Biomedical Engineering

ISSN

1350-4533

0141-5425

0141-5425

Statut éditorial

Publié

Date de publication

1993

Volume

15

Numéro

2

Pages

127-131

Langue

anglais

Notes

In Vitro Journal Article --- Old month value: Mar

Résumé

An understanding of the geometry of the right ventricular (RV) free wall is imperative for both modelling its mechanics and assessing its mass by imaging techniques such as echocardiography. In this paper, a new model of the RV free wall geometry is discussed in which the wall is assumed to have a parabolic long-axis and a circular short-axis curvature respectively. By use of analytic geometry, mathematical expressions for RV surface area, volume and mass were derived. In vitro model validation was carried out in the following manner: (1) echocardiographic images of 16 isolated calf hearts were obtained; (2) measurements were made from the images to determine the parameters required by the model; (3) wall mass was determined by use of these parameters; and (4) the calculated wall mass was then compared with actual RV wall mass (determined by weighting). The model was found to be very accurate for determination of RV free wall mass (R = 0.92); it should prove useful in the study of the stress-strain relationships for the RV and for precise quantitative assessment of RV free wall mass.

Mots-clé

Animals, Body Mass Index, Cattle, Confidence Intervals, Echocardiography, Heart Ventricles, Image Processing, Computer-Assisted, Models, Cardiovascular

Pubmed

Web of science

Création de la notice

28/01/2008 10:45

Dernière modification de la notice

18/11/2016 14:53