A model of left ventricular contraction and transmural ventricular deformation

Rafael Beyar, Samuel Sideman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations


The authors present a thick-wall ellipsoidal model of the left ventricle (LV) that takes into account its fiber structure in parallel with the well-known physiological properties of the muscle fibers and was constructed to describe both the transmural and global features of ventricular contraction. The model describes systolic function utilizing the force-length and force-velocity relationship of the fibers. The local oxygen consumption is simulated assuming a linear relationship with the area of the stress-length loop and the triangle between the loop and the maximum active force formed locally for each fiber. The model yields the transmural distribution of oxygen demand as a function of the loading conditions, and accounts for twist of the LV over its long axis during ejection. Thus, the model of LV function provides a comprehensive analytic tool to study the complex interactions between parameters of the ventricular function.

Original languageEnglish (US)
Title of host publicationComputers in Cardiology
PublisherPubl by IEEE
Number of pages3
ISBN (Print)0818621141
StatePublished - Sep 1989
Externally publishedYes
EventProceedings - Computers in Cardiology - Jerusalem, Isr
Duration: Sep 19 1989Sep 22 1989


OtherProceedings - Computers in Cardiology
CityJerusalem, Isr

ASJC Scopus subject areas

  • Software
  • Cardiology and Cardiovascular Medicine


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