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Comparison of CEST MRI of two pH compartments and their CNR determined from the raw MTRasym, interpolation-based correction of B0 inhomogeneity using Z-spectrum (MTRasym(intrpl)), and the fast regression correction algorithm of MTRasym without Z-spectrum ((MTRasym(fast)).
| Raw MTRasym | MTRasym(intrpl) | MTRasym(fast) | |
|---|---|---|---|
| CESTRint (%) | 5.42 ± 0.81 | 5.49 ± 0.22 | 5.50 ± 0.26 |
| CESTRext (%) | 1.92 ± 1.12 | 2.48 ± 0.20 | 2.28 ± 0.26 |
| CNR | 3.59 | 14.45 | 12.56 |
