Table 1.
The measured observed R1 R1,obs (= 1/T1,obs) and estimated parameters of the two-pool MT model. Values (mean ± SEM) obtained from fitting the Z-spectra of control and stressed groups with saturation B1s of 3 and 5 µT in the hippocampus and cortex. CG denotes the control group and SG, the stressed group. To compare the results parametric two-tailed Student’s t-test or non-parametric Mann–Whitney U‐test (when data did not meet criteria of normal distribution) were performed. *p < 0.05.
| Parameter | Hippocampus | Cortex | ||||
|---|---|---|---|---|---|---|
| CG | SG | p-value | CG | SG | p-value | |
| R1,obs (1/s) | 0.54 ± 0.003 | 0.56 ± 0.003 | 0.03* | 0.52 ± 0.008 | 0.56 ± 0.005 | 0.02* |
| T2,A (ms) | 51 ± 1 | 52 ± 1 | 0.46 | 51 ± 1 | 50 ± 1 | 0.88 |
| R (Hz) | 50 ± 3 | 49 ± 2 | 0.83 | 47 ± 2 | 42 ± 3 | 0.29 |
| M0,B (%) | 6.7 ± 0.2 | 6.7 ± 0.1 | 0.93 | 6.8 ± 0.2 | 7.8 ± 0.2 | 0.11 |
| T2,B (µs) | 8.8 ± 0.1 | 8.7 ± 0.1 | 0.72 | 8.7 ± 0.1 | 9.0 ± 0.1 | 0.23 |