Quantification of instantaneous extension and contraction of in vivo myocardial fiber

Y. C. Pao; Erik L. Ritman

Quantification of instantaneous extension and contraction of in vivo myocardial fiber

Y. C. Pao, Erik L. Ritman

Physiology & Biomedical Engineering

Research output: Contribution to conference › Paper › peer-review

2 Scopus citations

Abstract

A modified myocardium-blood composite model enables the temporal changes in instantaneous extension and contraction of in vivo myocardial fiber to be computed by using the measured blood volume fractions and wall thicknesses in the investigated left ventricular region. A 16 time-increment study of 6 dogs shows that myocardial fiber may undergo an average length change of 62% and -38% during the diastolic and systolic phases of cardiac cycle, respectively. Two comparable results had been obtained previously, but the new method is much simpler, removes the incompressibility assumption and takes into consideration the intravascular blood in the ventricular wall.

Original language	English (US)
Pages	7-8
Number of pages	2
State	Published - Dec 1 1994
Event	Proceedings of the 1994 International Mechanical Engineering Congress and Exposition - Chicago, IL, USA Duration: Nov 6 1994 → Nov 11 1994

Other

Other	Proceedings of the 1994 International Mechanical Engineering Congress and Exposition
City	Chicago, IL, USA
Period	11/6/94 → 11/11/94

ASJC Scopus subject areas

Engineering(all)

Cite this

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title = "Quantification of instantaneous extension and contraction of in vivo myocardial fiber",

abstract = "A modified myocardium-blood composite model enables the temporal changes in instantaneous extension and contraction of in vivo myocardial fiber to be computed by using the measured blood volume fractions and wall thicknesses in the investigated left ventricular region. A 16 time-increment study of 6 dogs shows that myocardial fiber may undergo an average length change of 62% and -38% during the diastolic and systolic phases of cardiac cycle, respectively. Two comparable results had been obtained previously, but the new method is much simpler, removes the incompressibility assumption and takes into consideration the intravascular blood in the ventricular wall.",

author = "Pao, {Y. C.} and Ritman, {Erik L.}",

year = "1994",

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day = "1",

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note = "Proceedings of the 1994 International Mechanical Engineering Congress and Exposition ; Conference date: 06-11-1994 Through 11-11-1994",

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T1 - Quantification of instantaneous extension and contraction of in vivo myocardial fiber

AU - Pao, Y. C.

AU - Ritman, Erik L.

PY - 1994/12/1

Y1 - 1994/12/1

N2 - A modified myocardium-blood composite model enables the temporal changes in instantaneous extension and contraction of in vivo myocardial fiber to be computed by using the measured blood volume fractions and wall thicknesses in the investigated left ventricular region. A 16 time-increment study of 6 dogs shows that myocardial fiber may undergo an average length change of 62% and -38% during the diastolic and systolic phases of cardiac cycle, respectively. Two comparable results had been obtained previously, but the new method is much simpler, removes the incompressibility assumption and takes into consideration the intravascular blood in the ventricular wall.

AB - A modified myocardium-blood composite model enables the temporal changes in instantaneous extension and contraction of in vivo myocardial fiber to be computed by using the measured blood volume fractions and wall thicknesses in the investigated left ventricular region. A 16 time-increment study of 6 dogs shows that myocardial fiber may undergo an average length change of 62% and -38% during the diastolic and systolic phases of cardiac cycle, respectively. Two comparable results had been obtained previously, but the new method is much simpler, removes the incompressibility assumption and takes into consideration the intravascular blood in the ventricular wall.

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M3 - Paper

AN - SCOPUS:0028740951

SP - 7

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T2 - Proceedings of the 1994 International Mechanical Engineering Congress and Exposition

Y2 - 6 November 1994 through 11 November 1994

ER -

Quantification of instantaneous extension and contraction of in vivo myocardial fiber

Abstract

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ASJC Scopus subject areas

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