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B0 homogeneity. Standard deviation values of the frequency, measured with and without the TxS system for tune-up shim and automatic shim. Data were evaluated either for the entire phantom or only for the slice shown in Figure 6.
| Standard Deviation of ∆f (Hz) | |||
|---|---|---|---|
| with TxS System | without TxS System | ||
| tune-up shim | phantom | 97.0 | 97.5 |
| slice | 40.4 | 36.8 | |
| automatic shim | phantom | 72.5 | 75.9 |
| slice | 45.4 | 43.0 | |
