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Comparing the mean SNR at 7 and 3 T for various anatomic regions using the FLASH method. The p value is for the difference between the measured mean SNR ratio and the value 2.40, the ratio of Larmor frequencies.
| Anatomic region | Mean SNR at 7 T | Mean SNR at 3 T | Mean SNR ratio 7 T vs 3 T |
|---|---|---|---|
| Corpus callosum | 71.7±6.0 | 28.2±0.8 | 2.54±0.21 (p=0.52) |
| Internal capsule | 70.0±5.9 | 26.9±0.7 | 2.60±0.22 (p=0.39) |
| Hippocampus | 72.2±6.1 | 29.3±0.8 | 2.46±0.21 (p=0.77) |
| Cortex | 77.5±6.5 | 28.8±0.8 | 2.69±0.23 (p=0.25) |
