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Comparison of g-factors obtained by coil sensitivity profile and SNRnoRF. All the g-maps were from data acquired with an RF excitation angle of 20°. For SNRnoRF, ROI size of 10×10 was used to calculate the g-factor. The average and standard deviation were measured within the center area of 60×54 pixels in the g-map.
| SENSE acceleration factor | Coil Sensitivity | no RF |
|---|---|---|
| R = 2 | 1.06±0.08 | 1.04±0.12 |
| R = 3 | 1.21±0.15 | 1.14±0.17 |
| R = 4 | 1.90±0.43 | 1.64±0.25 |
| R = 5 | 4.57±1.61 | 4.78±1.08 |
