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Comparisons of the CEST effect as measured by imaging (% decrease in bulk water intensity) between the water and plasma samples of Eu(2), Eu(5) and Eu(6) at different agent concentrations, 20°C, irradiation time 5s and B1 = 14.1 µT.
| 1mM | 2.5mM | 5mM | 10mM | 20mM | |
|---|---|---|---|---|---|
| Eu(2) in water | 1.2 | 3.0 | 5.6 | 10 | 18 |
| Eu(2) in plasma | 0.8 | 2.0 | 3.9 | 6.4 | 11 |
| Eu(5) in water | 8.7 | 21 | 34 | 49 | 65 |
| Eu(5) in plasma | 8.9 | 20 | 33 | 50 | 65 |
| Eu(6) in water | 5.5 | 13 | 23 | 38 | 58 |
| Eu(6) in plasma | 4.6 | 13 | 22 | 35 | 55 |
