Spatiotemporal estimation of activation times of fractionated ECGs on complex heart surfaces

Author

Erem, Burak ; Brooks, Dana H. ; Van Dam, Peter M. ; Stinstra, Jeroen G. ; MacLeod, Rob S.

Author_Institution

Electr. & Comput. Eng. Dept., Northeastern Univ., Boston, MA, USA

fYear

2011

fDate

Aug. 30 2011-Sept. 3 2011

Firstpage

5884

Lastpage

5887

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.

Keywords

bioelectric potentials; electrocardiography; gradient methods; medical signal processing; spatiotemporal phenomena; activation times; canine heart; cardiac electrophysiology; depolarization times; electric potentials; electrical activation; fractionated ECG; gradient estimation; sparsely-sampled complex heart surfaces; spatiotemporal estimation; triangulated surfaces; Electric potential; Electrodes; Estimation; Geometry; Heart; Spatiotemporal phenomena; Surface waves; Action Potentials; Algorithms; Animals; Body Surface Potential Mapping; Computer Simulation; Diagnosis, Computer-Assisted; Dogs; Electrocardiography; Heart Conduction System; Models, Cardiovascular; Reproducibility of Results; Sensitivity and Specificity;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, EMBC, 2011 Annual International Conference of the IEEE

Conference_Location

Boston, MA

ISSN

1557-170X

Print_ISBN

978-1-4244-4121-1

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2011.6091455

Filename

6091455