Table 2. R: Ratio of 1g local SAR vs global SAR (FDA limit = 2.7).
Wire Position | Birdcage Coil | pTx 2 | pTx 4 | pTx 8 |
---|---|---|---|---|
ρ = 2.5 cm, z = 0 cm | 2.64x104 | 0.127 | 2.52 | 0.472 |
ρ = 6 cm, z = 0 cm | 6.88x104 | 0.0189 | 0.437 | 0.0124 |
ρ = 7.5 cm, z = 0 cm | 7.53x105 | 0.0244 | 0.0266 | 0.0143 |
ρ = 8 cm, z = 2 cm | 3.01x104 | 0.327 | 0.326 | 0.243 |