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Vector expansion techniques for the inverse problem of electrocardiography: application to a realistic heart-torso
R D Throne1, L G Olson, J R Windle
1Department of Electrical Engineering, University of Nebraska, Lincoln 685881, USA.
Biomedical Sciences Instrumentation
|January 1, 1996
Abstract:
We have previously compared four numerical techniques utilizing both a homogeneous and inhomogeneous eccentric sphere model problem. In those studies we found that the Generalized Eigensystem approach generally gave superior performance over both truncated singular value decomposition and zero order Tikhonov regularization. In this paper we extend the comparison to the case of a realistic heart-torso geometry. With this model, the generalized eigensystem approach again provides superior performance as measured by both relative error and correlation coefficient.