Table 1.
Electrical conductivity of tissues and electrode components in the finite element model of spinal cord stimulation.
| Material | Conductivity (S/m) | References |
|---|---|---|
| Muscle | 0.2 | Geddes and Baker, 1967 |
| Bone | 0.02 | Kosterich et al., 1983 |
| Epidural space* | 0.2 | Geddes and Baker, 1967 |
| Dura | 0.03 | Struijk et al., 1993 |
| Cerebrospinal fluid | 1.8 | Baumann et al., 1997 |
| White matter | 0.6 (longitudinal) | Ranck and Bement, 1965 |
| 0.083 (radial) | ||
| Gray matter | 0.23 | Latikka et al., 2001 |
| Platinum | 9.43*106 | Serway, 2006 |
| Silicone | 10−12 | Davis, 1959 |
*
Assume that epidural space has the same conductivity as muscle.