Table 1.
Eleven tissue types and their assigned conductivities obtained from low frequency (<1kHz) data in literatures [7]. The isotropic conductivity in white matter was obtained using the formula σ=σ1 · σt where σ1 is longitudinal and σt is transverse conductivity value
| Tissue types | σ (S/m) | Reference |
|---|---|---|
| Air | 0 | - |
| Blood | 6.7×10−1 | Geddes and Baker (1967) |
| Cancellous bone | 21.4×10−3 | Akhtari et al. (2002) |
| Cortical bone | 5.52×10−3 | Akhtari et al. (2002) |
| Cerebrospinal fluid | 1.8 | Baumann et al. (1997) |
| Fat | 2.5×10−2 | Gabriel et al. (1996) |
| Gray matter | 1.0×10−1 | Gabriel et al. (1996) |
| Muscle | 1.6×10−1 | Geddes and Baker (1967) |
| Sclera, lens | 5.0×10−1 | Gabriel et al. (1996) |
| Skin | 4.3×10−1 | Holdefer et al. (2006) |
| White matter | 1.2×10−1(trans.) 1.2 (long.) |
Geddes and Baker (1967) |