Magnetic Fields from Simulated Cardiac Action Currents

IEEE Transactions on Biomedical Engineering

Volumn 41, Issue 10, 1994, Pages 969-974

  Barach, John Paul ^a   Wikswo, John P ^a  

^a VANDERBILT UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ANISOTROPY; ELECTRIC CONDUCTIVITY; MAGNETIC FIELD EFFECTS; MATHEMATICAL MODELS; WAVEFORM ANALYSIS;

ANISOTROPIC BIDOMAIN MODELS; ELECTRICAL ANISOTROPY; MAGNETIC FIELD DISTRIBUTION; REPOLARIZATION CURRENTS; SIMULATED CARDIAC ACTION CURRENTS;

ELECTROCARDIOGRAPHY;

ACTION POTENTIAL; ANIMAL EXPERIMENT; ANIMAL MODEL; ANISOTROPY; ARTICLE; COMPUTER SIMULATION; CONTROLLED STUDY; DOG; ELECTRIC CONDUCTIVITY; ELECTRIC CURRENT; HEART CONTRACTION; HEART DEPOLARIZATION; MAGNETIC FIELD; NONHUMAN; TISSUE SLICE;

EID: 0028519192     PISSN: 00189294     EISSN: 15582531     Source Type: Journal    
DOI: 10.1109/10.324529     Document Type: Article

References (24)

1. J. P. Barach, “A simulation of cardiac currents having curl,” IEEE Trans. Biomed. Eng., vol. 40, pp. 49–58, 1993.
2. R. C. Barr and R. Plonsey, “Propagation of excitation in idealized anisotropic 2-D tissue,” Biophys. J., vol. 45, pp. 1191–1202, 1984.
3. R. Plonsey and R. C. Barr, “Current flow patterns in 2-D anisotropic bisyncitia with normal and extreme conductivities,” Biophys. J., vol. 45, pp. 557–571, 1984.
4. N. G. Sepulveda and J. P. Wikswo, Jr., “Electric and magnetic fields from 2-D bisyncitia,” Biophys. J., vol. 51, pp. 557–568, 1987.
5. N. G. Sepulveda, B. J. Roth and J. P. Wikswo, Jr., “Current injection into a 2-D anisotropic bidomain,” Biophys. J., vol. 55, pp. 987–999, 1989.
6. C. S. Henriquez and R. Plonsey, “Simulation of propagation along a cylindrical bundle of cardiac tissue,” IEEE Trans. Biomed. Eng., vol. 37, pp. 850–861, 1990.
7. B. J. Roth, “Action potential propagation in a thick strand of cardiac muscle,” Circ. Res., vol. 68, pp. 162–173, 1991.
8. J. P. Barach, “Latencies in action potential stimulation in a 2-D bidomain: A numerical simulation,” J. Appl. Phys., vol. 69(9), pp. 6685–6692, 1991.
9. B. J. Roth and J. P. Wikswo, Jr., “Electrical stimulation of cardiac tissue: A bidomain model with active membrane properties,” IEEE Trans. Biomed. Eng., vol. 41, no. 3, pp. 232–240, Mar. 1993.
10. J. M. Saypol and B. J. Roth, “A mechanism for anisotropic reentry in electrically active tissue,” J. Cardiovasc. Electrophys., vol. 3, pp. 558–566, 1992.
11. D. J. Staton, R. N. Friedman and J. P. Wikswo, Jr., “High resolution SQUID magnetocardiographic mapping of action currents in canine cardiac slices,” Circ., vol. 84, p. 667, 1991.
12. ——, “High resolution SQUID imaging of octupolar currents in anisotropic cardiac tissue,” IEEE Trans. Applied Superconduct., vol. 3(1), pp. 1934–1936, 1993.
13. E. Niebur and D. Niebur, “Numerical implementation of sealed end boundary conditions in cable theory,” IEEE Trans. Biomed. Eng., vol. 38, pp. 1266–1271, 1991.
14. J. P. Drouhard and F. A. Roberge, “A revised formulation of the Hodgkin-Huxley representation of the sodium current in cardiac cells,” Comput. Biomed. Res., vol. 20, pp. 333–350, 1987.
15. L. V. Corbin, II and A. M. Scher, “The canine heart as an electrocardiographic generator: Dependence on cardiac cell orientation,” Circ. Res., vol. 41, p. 58, 1977.
16. J. P. Barach, “The effect of Ohmic return currents on biomagnetic fields,” J. Theor. Biol., vol. 125, pp. 187–191, 1987.
17. J. P. Wikswo, Jr., “The calculation of the magnetic field from a current distribution: Application to finite element techniques,” IEEE Trans. Magn., vol. MAG-14, pp. 1076–1077, 1978.
18. ——, “High resolution measurements of biomagnetic fields,” in Advances in Cryogenic Engineering, R. W. Fast, Ed. vol. 33, pp. 107–116, 1988.
19. J. P. Wikswo, Jr. and B. J. Roth, “Magnetic determination of the spatial extent of a single cortical current source: A theoretical analysis,” Electroencephalog. Clin. Neurophysiol., vol. 69, pp. 266–276, 1988.
20. S. Tan, B. J. Roth and J. P. Wikswo, Jr., “The magnetic field of cortical current sources: The application of a spatial filtering model to the forward and inverse problems,” Electroencephalog. Clin. Neurophysiol., vol. 76, pp. 73–85, 1990.
21. B. J. Roth, N. G. Sepulveda and J. P. Wikswo, Jr., “Using a magnetometer to image a 2-D current distribution,” J. Appl. Phys., vol. 65, pp. 361–372, 1989.
22. D. S. Buchanan, D. B. Cram, D. Cox and J. P. Wikswo, Jr., “Mi-croSQUID: A close-spaced four channel magnetometer,” in Advances in Biomagnetism, S. J. Williamson, M. Hoke, G. Stroink and M. Kotani, Eds. New York: Plenum, 1990, pp. 677–679.
23. J. P. Wikswo, Jr., J. M. van Egeraat, Y. P. Ma, N. G. Sepulveda, D. J. Staton, S. Tan and R. S. Wijesinghe, “Instrumentation and techniques for high-resolution magnetic imaging,” Digital Image Synthesis and Inverse Optics, A. F. Gmitro, P. S. Idell, and I. J. LaHaie, Eds. SPIE Proc., vol. 1351, pp. 438–470, 1990.
24. B. J. Roth and J. P. Wikswo, Jr. “Longitudinal resistance in cardiac muscle and its effects on propagation,” in Cell Interactions and Gap Junctions, N. Sperelakis and W.C. Cole, Eds. Boca Raton: CRC Press, 1989, pp. 165–178.