3D Finite Element Complex Domain Numerical Models of Electric Fields in Blood and Myocardium

Chia Ling Wei, Jonathan W. Valvano, Marc D Feldman, Matthias Nahrendorf, John A. Pearce

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

7 Citations (Scopus)

Abstract

The conductance catheter system is a tool to determine left ventricular (LV) volume in vivo. However, the accuracy of this method is limited by three assumptions of the equation to convert conductance to volume: the assumed homogeneity of electric field within LV, myocardium having resistive and not capacitive properties, and assumed constant parallel myocardial conductance. This study investigates weaknesses of these three assumptions. It proposes an equivalent circuit model for mouse LV as well as a calculation method for conductance and capacitance of LV. Furthermore, this study also demonstrates the importance of phase measurement in vivo experiments.

Original languageEnglish (US)
Title of host publicationAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
EditorsR.S. Leder
Pages62-65
Number of pages4
Volume1
StatePublished - 2003
EventA New Beginning for Human Health: Proceedings of the 25th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Cancun, Mexico
Duration: Sep 17 2003Sep 21 2003

Other

OtherA New Beginning for Human Health: Proceedings of the 25th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
CountryMexico
CityCancun
Period9/17/039/21/03

Fingerprint

Phase measurement
Catheters
Equivalent circuits
Numerical models
Blood
Capacitance
Electric fields
Experiments

Keywords

  • Capacitive myocardium
  • Electric field inhomogeneity
  • Finite element
  • Parallel conductance
  • Phase

ASJC Scopus subject areas

  • Bioengineering

Cite this

Wei, C. L., Valvano, J. W., Feldman, M. D., Nahrendorf, M., & Pearce, J. A. (2003). 3D Finite Element Complex Domain Numerical Models of Electric Fields in Blood and Myocardium. In R. S. Leder (Ed.), Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings (Vol. 1, pp. 62-65)

3D Finite Element Complex Domain Numerical Models of Electric Fields in Blood and Myocardium. / Wei, Chia Ling; Valvano, Jonathan W.; Feldman, Marc D; Nahrendorf, Matthias; Pearce, John A.

Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. ed. / R.S. Leder. Vol. 1 2003. p. 62-65.

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

Wei, CL, Valvano, JW, Feldman, MD, Nahrendorf, M & Pearce, JA 2003, 3D Finite Element Complex Domain Numerical Models of Electric Fields in Blood and Myocardium. in RS Leder (ed.), Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. vol. 1, pp. 62-65, A New Beginning for Human Health: Proceedings of the 25th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Cancun, Mexico, 9/17/03.
Wei CL, Valvano JW, Feldman MD, Nahrendorf M, Pearce JA. 3D Finite Element Complex Domain Numerical Models of Electric Fields in Blood and Myocardium. In Leder RS, editor, Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 1. 2003. p. 62-65
Wei, Chia Ling ; Valvano, Jonathan W. ; Feldman, Marc D ; Nahrendorf, Matthias ; Pearce, John A. / 3D Finite Element Complex Domain Numerical Models of Electric Fields in Blood and Myocardium. Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. editor / R.S. Leder. Vol. 1 2003. pp. 62-65
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