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We have analyzed cardiac ischemia-reperfusion in an animal model using epicardial electropotential mapping. We investigated the relationship between ischemia and variability of multifractality in epicardial electrograms. We present a new parameter called the singularity spectrum area reference dispersion (SARD) that clearly demonstrates the change in multifractility with the extent of myocardiaischemia. By contrasting the 3D ventricular epicardial SARD map with the activation map, we conclude that myocardial ischemia significantly influences the variety of multifractality of ventricular epicardium electrograms and the SARD parameter is useful in correlating multifractality of epicardial electrograms with location of ischemia closely. © Science in China Press 2006.

Original publication

DOI

10.1007/s11434-006-0809-x

Type

Journal article

Journal

Chinese Science Bulletin

Publication Date

01/04/2006

Volume

51

Pages

809 - 814