Table 2.
Population statistics for MRE parameters and MRI volumetry results
| Ce | Am | Ca | Hp | Pa | Pu | Th | |
|---|---|---|---|---|---|---|---|
| Volume (cm3) | |||||||
| Young | 1161 ± 117 | 3.64 ± 0.37 | 7.39 ± 1.02 | 9.32 ± 0.62 | 2.88 ± 0.33 | 11.38 ± 1.16 | 16.15 ± 1.65 |
| Older | 1078 ± 89 | 3.11 ± 0.40 | 6.77 ± 0.75 | 8.23 ± 1.13 | 2.64 ± 0.29 | 9.28 ± 1.04 | 14.23 ± 1.44 |
| % Difference | −3.85 | −15.70 | −8.76 | −12.42 | −8.70 | −20.33 | −12.64 |
| μ (kPa) | |||||||
| Young | 2.95 ± 0.17 | 3.60 ± 0.30 | 2.92 ± 0.23 | 2.89 ± 0.32 | 3.59 ± 0.26 | 3.76 ± 0.15 | 3.35 ± 0.24 |
| Older | 2.70 ± 0.15 | 3.02 ± 0.42 | 2.21 ± 0.32 | 2.65 ± 0.39 | 3.04 ± 0.39 | 3.26 ± 0.23 | 2.76 ± 0.31 |
| % Difference | −8.47 | −16.11 | −24.32 | −8.30 | −15.32 | −13.30 | −17.61 |
| ξ | |||||||
| Young | 0.254 ± 0.011 | 0.159 ± 0.022 | 0.254 ± 0.035 | 0.156 ± 0.012 | 0.211 ± 0.032 | 0.225 ± 0.014 | 0.195 ± 0.029 |
| Older | 0.260 ± 0.017 | 0.181 ± 0.025 | 0.236 ± 0.034 | 0.188 ± 0.032 | 0.192 ± 0.025 | 0.220 ± 0.016 | 0.205 ± 0.022 |
| % Difference | +2.36 | +13.84 | −7.09 | +20.51 | −9.00 | −2.22 | +5.14 |
Values represent mean +standard deviation.
Key: MRE, magnetic resonance elastography; MRI, magnetic resonance imaging; Am, amygdala; Ca, caudate; Hp, hippocampus; Pa, pallidum; Pu, putamen; Th, thalamus.