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Relative transmit efficiencies (RTE), i.e. ratios (mean ± SD) of the B1+ maps after to before B1+ shimming, averaged over the different regions of interest.
| Region of Interest | RTE (After / Before B1+ shimming) |
|---|---|
| Occipital cortex | 2.5 ± 0.2 |
| Posterior cingulate | 1.4 ± 0.4 |
| Frontal white matter | 1.9 ± 0.2 |
| Putamen | 1.6 ± 0.2 |
| Substantia nigra | 1.2 ± 0.1 |
| Pons | 1.3 ± 0.1 |
| Cerebellar vermis | 3.3 ± 0.3 |
