Use of surface laplacian to extract local activation from epicardial electrograms

Computers in Cardiology

Volumn 0, Issue 0, 1996, Pages 129-132

  Geselowitz, D B ^a   Crombie, P E ^a   Smith, S M ^a   Berbari, E J ^b  

^a PENNSYLVANIA STATE UNIVERSITY   (United States)

^b INDIANA UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

BIOELECTRIC POTENTIALS; COMPUTER SIMULATION; ELECTRODES; LAPLACE TRANSFORMS; MATHEMATICAL MODELS;

ELECTRODE ARRAY; EPICARDIAL ELECTROGRAMS; SURFACE LAPLACIAN;

ELECTROCARDIOGRAPHY;

EID: 0030417894     PISSN: 02766574     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Article

References (9)

1. Geselowitz DB, 1989. "On the theory of the electrocardiogram." Proceedings of the IEEE 77: 857-876.
2. Hjort B, "An on-line transformation of EEG scalp potentials into orthogonal source derivations", Electroenceph. Clin. Neurophysiol., 39:526-530, 1975.
3. Kleber AG, Janse MJ, van Capelle FJL., Durrer D, "Mechanism and time course of S-T and T-Q segment changes during acute regional myocardial ischemia in the pig heart determined by extracellular and intracellular recordings", Circulation Research, 42:603-614, 1978.
4. Witkowski FX, Kavanagh KM, Penkoske PA, Plonsey R, "In vivo estimation of cardiac transmembrane current", Circulation Research, 72:424-439, 1993.
5. Geselowitz DB, Smith SM, Mowrey K, Berbari EJ, "Model studies of extracellular electrograms arising from an excitation wave propagating in a thin layer", IEEE Transactions on Biomedical Engineering, BME-38: 526-531, 1991.
6. Spach MS, Kootsey JM, "Relating the sodium current and conductance to the shape of transmembrane and extracellular potentials by stimulation: Effects of propagation boundaries", IEEE Transactions on Biomedical Engineering, BME-32:743-755, 1985.
7. Berbari EJ, Lander P, Geselowitz DB, Scherlag BJ, Lazzara R, "Identifying the end of ventricular activation. Body surface late potentials versus electrogram measurements in a canine infarction model", Journal of Cardiovascular Electrophysiology, 5:28-40, 1994.
8. Smith SM, "Characterization of late potential activation wave-fronts through the infarct border zone", Ph.D. thesis, The Pennsylvania State University, University Park, Pennsylvania, 1993.
9. Erdinc P, "Use of surface Laplacian to obtain activation times in epicardial electrograms and relations of endocardial potentials to intracavitary potentials, M.S. thesis, The Pennsylvania State University, University Park, Pennsylvania, 1994