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.
|Number of pages||3|
|Journal||Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings|
|Volume||11 pt 1|
|State||Published - Nov 1 1989|
|Event||Images 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 1989 → Nov 12 1989