title: Higher order regularization techniques for inverse electrocardiography.
abstract: We have previously presented the generalized eigensystem (GES) approach as an alternative to truncated singular value decomposition and zero order Tikhonov regularization methods for the ill-conditioned inverse problem of electrocardiography. In this paper we extend our comparison of GES with Tikhonov regularization utilizing higher order regularizers applied to a realistic heart/torso geometry with measured epicardial and body surface potentials. Utilizing higher order regularizers the results from Tikhonov regularization more closely match those of the GES techniques.
authors.affiliation: Dept. of Electrical Engineering, University of Nebraska, USA.
authors.forename: R D
authors.initials: RD
authors.lastname: Throne
authors.forename: L G
authors.initials: LG
authors.lastname: Olson
mesh_terms: D000818:Animals; D018780:Body Surface Potential Mapping; D004285:Dogs; D004562:Electrocardiography / Q000379:methods*; D008955:Models, Cardiovascular