. Author manuscript; available in PMC: 2010 Jul 20.

Published in final edited form as: IEEE Trans Biomed Eng. 2009 Jun 16;57(2):220–237. doi: 10.1109/TBME.2009.2024928

TABLE II.

Evaluation of Inverse Solutions of the Homogeneous Torso Simulation Shown in Fig. 8

	Noise Level	Mesh A	Mesh B	Mesh C

Mean RE	Noise Free	8.81%	5.85%	4.19%
	30 dB	9.02%	7.90%	7.17%
	20 dB	14.33%	15.45%	15.26%

λ	Noise Free	0.0077	0.0016	0.0005
	30 dB	0.0080	0.0042	0.0035
	20 dB	0.0205	0.0207	0.0215

MGL Error	Noise Free	1	1	1
	30 dB	1	1	0.98
	20 dB	1	0.82	0.7

The data represent the arithmetic average of 50 repeated simulations. White noise of 30 and 20 dB SNR is added to the torso-surface measurements before solving the inverse problem. MGL: maximum gradient location in the vector of the inverse solution.