TEMPERATURE DISTRIBUTION WITHIN THE LEFT VENTRICULAR WALL OF THE NORMAL AND INFARCTED HEART.

E. Barta, S. Sideman, R. Beyar

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

Abstract

The instantaneous local temperature distribution across the wall of the left ventricle (LV) in the heart is obtained by solving the bio-heat energy balance equation, utilizing the distributed oxygen demand, and the time dependent local coronary perfusion, coupled with our spatial and temporal mechanical model of the L. V. 1-D model approximations of the cycle-averaged and time dependent local temperatures are presented for the normal 'symmetric' heart. And a 2-D model yields the time averaged local temperatures for an infarcted non-symmetric LV. Effects of heart rate, blood perfusion rate and the external wall free convection boundary condition are investigated. The calculated 1-D results are found to be in fair agreement with experimental data. The 2-D temperature distributions indicate that the infarcted region has a very pronounced local effect, which decreases rapidly out of the region in the circumferential direction. The results suggest the thermal procedure as a potential aid for the identification of infarcted regions in the muscle of the heart.

Original languageEnglish (US)
Title of host publicationHeat Transfer, Proceedings of the International Heat Transfer Conference
EditorsChang L. Tien, Van P. Carey, James K. Ferrell
PublisherHemisphere Publ Corp
Pages3073-3078
Number of pages6
Volume6
ISBN (Print)0891165940
StatePublished - 1986
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Barta, E., Sideman, S., & Beyar, R. (1986). TEMPERATURE DISTRIBUTION WITHIN THE LEFT VENTRICULAR WALL OF THE NORMAL AND INFARCTED HEART. In C. L. Tien, V. P. Carey, & J. K. Ferrell (Eds.), Heat Transfer, Proceedings of the International Heat Transfer Conference (Vol. 6, pp. 3073-3078). Hemisphere Publ Corp.