Quantification of instantaneous extension and contraction of in vivo myocardial fiber

Y. C. Pao, Erik L. Ritman

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

2 Citations (Scopus)

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 languageEnglish (US)
Title of host publicationAmerican Society of Mechanical Engineers, Bioengineering Division (Publication) BED
Place of PublicationNew York, NY, United States
PublisherASME
Pages7-8
Number of pages2
Volume28
StatePublished - 1994
Externally publishedYes
EventProceedings of the 1994 International Mechanical Engineering Congress and Exposition - Chicago, IL, USA
Duration: Nov 6 1994Nov 11 1994

Other

OtherProceedings of the 1994 International Mechanical Engineering Congress and Exposition
CityChicago, IL, USA
Period11/6/9411/11/94

Fingerprint

Blood
Fibers
Time and motion study
Volume fraction
Composite materials

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Pao, Y. C., & Ritman, E. L. (1994). Quantification of instantaneous extension and contraction of in vivo myocardial fiber. In American Society of Mechanical Engineers, Bioengineering Division (Publication) BED (Vol. 28, pp. 7-8). New York, NY, United States: ASME.

Quantification of instantaneous extension and contraction of in vivo myocardial fiber. / Pao, Y. C.; Ritman, Erik L.

American Society of Mechanical Engineers, Bioengineering Division (Publication) BED. Vol. 28 New York, NY, United States : ASME, 1994. p. 7-8.

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

Pao, YC & Ritman, EL 1994, Quantification of instantaneous extension and contraction of in vivo myocardial fiber. in American Society of Mechanical Engineers, Bioengineering Division (Publication) BED. vol. 28, ASME, New York, NY, United States, pp. 7-8, Proceedings of the 1994 International Mechanical Engineering Congress and Exposition, Chicago, IL, USA, 11/6/94.
Pao YC, Ritman EL. Quantification of instantaneous extension and contraction of in vivo myocardial fiber. In American Society of Mechanical Engineers, Bioengineering Division (Publication) BED. Vol. 28. New York, NY, United States: ASME. 1994. p. 7-8
Pao, Y. C. ; Ritman, Erik L. / Quantification of instantaneous extension and contraction of in vivo myocardial fiber. American Society of Mechanical Engineers, Bioengineering Division (Publication) BED. Vol. 28 New York, NY, United States : ASME, 1994. pp. 7-8
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