Model study of vector-loop morphology during electrical mapping of microscopic conduction in cardiac tissue

Annals of Biomedical Engineering

Volumn 28, Issue 10, 2000, Pages 1244-1252

  Plank, G ^a   Hofer, E ^a  

^a UNIVERSITY OF GRAZ   (Austria)

Author keywords

[No Author keywords available]

Indexed keywords

CARDIOVASCULAR SYSTEM; COMPUTER SIMULATION; MICROELECTRODES; MORPHOLOGY; PHYSIOLOGICAL MODELS; TISSUE;

ELECTRICAL MAPPING TECHNIQUES; ELECTRODE ARRAYS; VECTOR LOOPS; VOLUME CONDUCTORS;

ELECTROPHYSIOLOGY;

ANIMAL; ARTICLE; BIOLOGICAL MODEL; BIOMEDICAL ENGINEERING; COMPUTER SIMULATION; ELECTROPHYSIOLOGY; HEART; HEART MUSCLE CONDUCTION SYSTEM; HISTOLOGY; IN VITRO STUDY; MICROELECTRODE; PERFUSION; PHYSIOLOGY;

ANIMALS; BIOMEDICAL ENGINEERING; COMPUTER SIMULATION; ELECTROPHYSIOLOGY; HEART; HEART CONDUCTION SYSTEM; MICROELECTRODES; MODELS, CARDIOVASCULAR; PERFUSION;

EID: 0034351088     PISSN: 00906964     EISSN: None     Source Type: Journal    
DOI: 10.1114/1.1320841     Document Type: Article

References (17)

1. Arisi, G., E. Macchi, C. Corradi, R. L. Lux, and B. Taccardi. Epicardial excitation during ventricular pacing. Circ. Res. 71:840-849, 1992.
2. Bayly, P. V., B. H. KenKnight, G. M. Rogers, R. E. Hillsley, R. E. Ideker, and W. M. Smith. Estimation of conduction velocity vector fields from epicardial mapping data. IEEE Trans. Biomed. Eng. 45 5:563-571, 1998.
3. Boineau, J. P., C. B. Miller, R. B. Schuessler, W. R. Roeske, L. J. Autry, A. C. Wylds, and D. A. Hill. Activation sequence and potential distribution maps demonstrating multicentric atrial impulse origin in dogs. Circ. Res. 54:332-347, 1984.
4. de Bakker, J. M. T., R. N. W. Hauer, and T. A. Simmers. Activation mapping: Unipolar versus bipolar recording. In: Cardiac Electrophysiology, edited by D. P. Zipes and J. Jalife. Philadelphia, PA: Saunders, 1995, pp. 1068-1078.
5. Geselowitz, D. B., R. C. Barr, M. S. Spach, and W. T. Miller III. The impact of adjacent isotropic fluids on electrograms from anisotropic cardiac muscle - A modeling study. Circ. Res. 51:602-613, 1982.
6. Hofer, E., G. Urban, M. S. Spach, I. Schafferhofer, G. Mohr, and D. Platzer. Measuring activation patterns of the heart at a microscopic size scale with thin-film sensors. Am. J. Physiol. 266:H2136-H2145, 1994.
7. Hofer, E, I. Schafferhofer, and G. Mohr. The effect of interelectrode distances on measurements of the local potential gradient of the propagating cardiac excitation at a microscopic size scale. Proceeding of the 17th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 1995 (unpublished).
8. Hofer, E., G. Mohr, A. C. Jorge, D. Platzer, and I. Schafferhofer. Is the discrete coupling of cardiac cells reflected in the wave front of extracellular potentials? - An experimental approach. Int. J. Bifurcation Chaos Appl. Sci. Eng. 6 9:1767-1773, 1996.
9. Kadish, A. H., J. F. Spear, J. H. Levine, R. F. Hanich, C. Prood, and E. N. Moore. Vector mapping of myocardial activation. Circulation 74:603-615, 1986.
10. Kadish, A. H., and J. F. Spear. Identification of conduction block in cardiac muscle: In vitro observations in canine epicardium. Cardiovasc. Res. 28:259-269, 1994.
11. Leon, L. J., and F. A. Roberge. Directional characteristics of action potential propagation in cardiac muscle. Circ. Res. 69:378-395, 1991.
12. Leon, L. J., and F. X. Witkowski. Calculation of transmembrane current from extracellular potential recordings: A model study. J. Cardiovasc. Electrophysiol. 6:379-390, 1995.
13. Luo, C., and Y. Rudy. A model of the ventricular cardiac action potential. Depolarization and their interaction. Circ. Res. 68:1501-1526, 1991.
14. Mohr, G., E. Hofer, and G. Plank. A new real-time mapping system to detect microscopic cardiac excitation patterns. Biomed. Instrumentation Technol. 33:455-461, 1999.
15. Spach, M. S., and J. M. Kootsey. Relating the sodium current and conductance to the shape of transmembrane and extracellular potentials by simulation: Effects of propagation boundaries. IEEE Trans. Biomed. Eng. BME-32:743-755, 1985.
16. Witkowski, F. X., K. M. Kavanagh, P. A. Penkoske, and R. Plonsey. In vivo estimation of cardiac transmembrane current. Circ. Res. 72:424-439, 1993.
17. Witkowski, F. X., K. M. Kavanagh, P. A. Penkoske, and R. Plonsey. Epicardial cardiac source-field behavior. IEEE Trans. Biomed. Eng. 42:552-558, 1995.