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Susceptibility artifacts averaged over four measurements in each condition. A summary of susceptibility artifacts measured from three electrode types (Ag/Agcl, Ag/AgCl coated carbon, and carbon wire) in two MRI imagers with different field strengths (1.5T and 3T) are shown.
| Scanner | 1.5T | 3T |
|---|---|---|
| Electrode | (mm) | (mm) |
| Ag/AgCl (9 mm diameter, Compumedics) | 6.1 | 9.4 |
| Ag/AgCl coated carbon (10 mm diameter, MVAP Medical Supplies, 30222) | 1.9 | 4.2 |
| Carbon wire (9 mm diameter loop) | 0.0 | 0.9 |
