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A simple, versatile valve model for use in lumped parameter and one‐dimensional cardiovascular models
Author(s) -
Mynard J. P.,
Davidson M. R.,
Penny D. J.,
Smolich J. J.
Publication year - 2011
Publication title -
international journal for numerical methods in biomedical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.741
H-Index - 63
eISSN - 2040-7947
pISSN - 2040-7939
DOI - 10.1002/cnm.1466
Subject(s) - cardiac valve , simple (philosophy) , upstream (networking) , mechanics , ideal (ethics) , motion (physics) , basis (linear algebra) , control theory (sociology) , mathematics , computer science , cardiology , physics , medicine , artificial intelligence , geometry , computer network , philosophy , control (management) , epistemology
SUMMARY Lumped parameter and one‐dimensional models of the cardiovascular system generally employ ideal cardiac and/or venous valves that open and close instantaneously. However, under normal or pathological conditions, valves can exhibit complex motions that are mainly determined by the instantaneous difference between upstream and downstream pressures. We present a simple valve model that predicts valve motion on the basis of this pressure difference, and can be used to investigate not only valve pathology, but a wide range of cardiac and vascular factors that are likely to influence valve motion. Copyright © 2011 John Wiley & Sons, Ltd.