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. Author manuscript; available in PMC: 2015 Jan 1.
Published in final edited form as: J Electrocardiol. 2013 Oct 17;47(1):20–28. doi: 10.1016/j.jelectrocard.2013.10.004

Fig. 3.

Fig. 3

Potential distributions at 5 ms after the onset of the Q wave. (a) Torso potentials computed from the measured cylindrical cage potentials using boundary element method (BEM). (b) Measured cylindrical cage potentials. (c and d) Inversely computed cylindrical cage potentials using the total variation method (FTV), and the total variation algorithm with the Laplacian instead of a gradient operator (STV). Although both approaches have similar relative errors, in qualitative terms, FTV better captures the measured potential distribution.