Beat-to-beat measurement of epicardial conduction and repolarization anisotropy in vivo in the dog

Francis X. Witkowski, Patricia A. Penkoske

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

To examine the dependence of ventricular repolarization on tissue anisotropy in vivo from the epicardial surface, an automated technique was developed to measure activation as well as repolarization from an array of electrodes on a beat-by-beat basis. The preliminary results of this study demonstrate that anisotropic repolarization, as reflected by recovery isochronal maps, appears to spread more rapidly than the previous activation sequence, to be dependent on stimulation rate, and to undergo modulation independent of the underlying activation sequence.

Original languageEnglish
Pages (from-to)199-201
Number of pages3
JournalAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume11 pt 1
StatePublished - Nov 1 1989
EventImages of the Twenty-First Century - Proceedings of the 11th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 1 - Seattle, WA, USA
Duration: Nov 9 1989Nov 12 1989

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