Table 2.

Overview of algorithms and MRI data used for the segmentation of each model compartment. Additionally, the conductivities used for FEM simulations and references for these values are given.

Compartment	Segmentation	MRI data	Conductivity (σ = S/m)	References
White matter	FAST	MPRAGE	0.1429	Haueisen et al. (1995)
Gray matter	FAST	MPRAGE	0.3333	Haueisen et al. (1995)
Liquor	FAST	MPRAGE	1.5385	Haueisen et al. (1995)
Blood vessels	Frangi filtering + regional growth	MPRAGE+GE	0.6250 (high-σ) 0.02 (intermediate-σ) 0.0063 (low-σ)	See Volume conductor head models section
Dura	Masking	GE	0.0650	Manola et al. (2005)
Compact bone	BET2	GE	0.0063	Haueisen et al. (1995)
Fat	Thresholding	MPRAGE	0.0400	Haueisen et al. (1995)
Eye	Regional growth	MPRAGE	0.5051	Haueisen et al. (1995)
Soft tissue	Regional growth	Binary	0.1736	Haueisen et al. (1995)
Internal air	Regional growth	MPRAGE	0.0020	Haueisen et al. (1995)
Skin	Isosurface	Binary	0.4348	Haueisen et al. (1995)