Abstract
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 language | English (US) |
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Title of host publication | Computers in Cardiology |
Publisher | Publ by IEEE |
Pages | 15-17 |
Number of pages | 3 |
ISBN (Print) | 0818621141 |
State | Published - Sep 1989 |
Externally published | Yes |
Event | Proceedings - Computers in Cardiology - Jerusalem, Isr Duration: Sep 19 1989 → Sep 22 1989 |
Other
Other | Proceedings - Computers in Cardiology |
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City | Jerusalem, Isr |
Period | 9/19/89 → 9/22/89 |
ASJC Scopus subject areas
- Software
- Cardiology and Cardiovascular Medicine