title: Spatiotemporal estimation of activation times of fractionated ECGs on complex heart surfaces.
abstract: Identification of electrical activation or depolarization times on sparsely-sampled complex heart surfaces is of importance to clinicians and researchers in cardiac electrophysiology. We introduce a spatiotemporal approach for activation time estimation which combines prior results using spatial and temporal methods with our own progress on gradient estimation on triangulated surfaces. Results of the method applied to simulated and canine heart data suggest that improvements are possible using this novel combined approach.
authors.affiliation: Comm. and Digital Signal Proc Center, Electrical & Computer Eng Dept, Northeastern Univ, Boston, MA, USA.fberem@ece.neu.edu
authors.forename: Burak
authors.initials: B
authors.lastname: Erem
authors.forename: Dana H
authors.initials: DH
authors.lastname: Brooks
authors.forename: Peter M
authors.initials: PM
authors.lastname: van Dam
authors.forename: Jeroen G
authors.initials: JG
authors.lastname: Stinstra
authors.forename: Rob S
authors.initials: RS
authors.lastname: MacLeod
mesh_terms: D000200:Action Potentials / Q000502:physiology*; D000465:Algorithms; D000818:Animals; D018780:Body Surface Potential Mapping / Q000379:methods*; D003198:Computer Simulation; D003936:Diagnosis, Computer-Assisted / Q000379:methods*; D004285:Dogs; D004562:Electrocardiography / Q000379:methods*; D006329:Heart Conduction System / Q000502:physiology*; D008955:Models, Cardiovascular; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity