Table 3.
Comparison of tissue conductivities measured using a four-probe method by an impedance analyzer and average conductivity measured in images over phantom regions of interest including chicken, potato or agar materials (S/m) using the proposed method and horizontal (‘H’) or vertical (‘V’) current injection or the non-iterative harmonic Bz method and full or half NEX data.
| Material Conductivity (S/m) | ||||
|---|---|---|---|---|
| Method | Type | Chicken | Potato | Agar |
| Impedance Analyzer | - | 0.70 ± 0.0169 | 0.18 ± 0.006 | 0.75 ± 0.018 |
| Proposed | H | 0.69 ± 0.0189 | 0.59 ± 0.0133 | 0.76 ± 0.0499 |
| V | 0.64 ± 0.0174 | 0.54 ± 0.0141 | 0.72 ± 0.0313 | |
| Non-iterative Harmonic Bz | Full NEX | 0.64 ± 0.0156 | 0.54 ± 0.0083 | 0.74 ± 0.0181 |
| Half NEX | 0.63 ± 0.0391 | 0.50 ± 0.0610 | 0.77 ± 0.1099 | |