Research Article
Quasistatic Solutions versus Full-Wave Solutions of Single-Channel Circular RF Receive Coils on Phantoms of Varying Conductivities at 3 Tesla
| Circular loop diameter | 3 cm | 4 cm | 5 cm | 6 cm | 7 cm | 8 cm | 9 cm | 10 cm |
| Quasistatic (Q) calculations | 0.3 S/m | 1.51 | 1.77 | 2.21 | 2.88 | 3.82 | 5.05 | 6.63 | 8.56 | 0.6 S/m | 1.65 | 2.16 | 3.02 | 4.33 | 6.18 | 8.63 | 11.8 | 15.6 | 0.9 S/m | 1.79 | 2.54 | 3.82 | 5.78 | 8.54 | 12.2 | 16.9 | 22.6 |
| Q/B ratios | 0.3 S/m | 3.02 | 1.36 | 0.84 | 0.61 | 0.46 | 0.39 | 0.31 | 0.27 | 0.6 S/m | 2.58 | 1.58 | 1.09 | 0.89 | 0.78 | 0.73 | 0.67 | 0.65 | 0.9 S/m | 2.49 | 1.59 | 1.17 | 1.07 | 0.99 | 0.95 | 0.89 | 0.92 |
| Full-wave (FW) calculations | 0.3 S/m | 0.48 | 1.13 | 2.39 | 4.52 | 7.99 | 13.2 | 20.9 | 31.9 | 0.6 S/m | 0.53 | 1.21 | 2.49 | 4.48 | 7.52 | 11.8 | 17.8 | 25.6 | 0.9 S/m | 0.62 | 1.41 | 2.86 | 5.04 | 8.26 | 12.6 | 18.5 | 25.8 |
| FW/B ratios | 0.3 S/m | 0.96 | 0.87 | 0.91 | 0.97 | 0.97 | 1.01 | 0.99 | 1.00 | 0.6 S/m | 0.83 | 0.88 | 0.9 | 0.92 | 0.95 | 0.99 | 1.01 | 1.07 | 0.9 S/m | 0.86 | 0.88 | 0.87 | 0.93 | 0.96 | 0.98 | 0.97 | 1.04 |
| Benchtop (B) measurements | 0.3 S/m | 0.50 | 1.30 | 2.63 | 4.67 | 8.26 | 13.1 | 21.2 | 31.9 | 0.6 S/m | 0.64 | 1.37 | 2.76 | 4.86 | 7.93 | 11.9 | 17.7 | 24.0 | 0.9 S/m | 0.72 | 1.60 | 3.27 | 5.42 | 8.60 | 12.8 | 19.0 | 24.7 |
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