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

Details

Serval ID
serval:BIB_6878362C8B35
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
A mathematical model of the right ventricular muscle geometry and mass.
Journal
Journal of Biomedical Engineering
Author(s)
Czegledy F., Aebischer N., Smith D., Katz J.
ISSN
1350-4533
0141-5425
Publication state
Published
Issued date
1993
Volume
15
Number
2
Pages
127-131
Language
english
Notes
In Vitro Journal Article --- Old month value: Mar
Abstract
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.
Keywords
Animals, Body Mass Index, Cattle, Confidence Intervals, Echocardiography, Heart Ventricles, Image Processing, Computer-Assisted, Models, Cardiovascular
Pubmed
Web of science
Create date
28/01/2008 9:45
Last modification date
20/08/2019 14:23
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