Table 1. MRI Measurements as a Function of Study Group.
Normal (n=29) | All MCI (n=20) | Statistic+ | P value+ | Effect size (Hedges'g) | Amnestic MCI (n=14) | Statistic+ | P value+ | Effect size (Hedges'g) | ||||
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Mean | SD | Mean | SD | Mean | SD | |||||||
Semi Automated Volumetric (SVA) measures † | ||||||||||||
Grey Matter | 37.213 | 0.753 | 37.033 | 1.038 | 0.7 | 0.487 | -0.20 | 37.151 | 0.994 | 0.2 | 0.823 | -0.07 |
White Matter | 26.544 | 0.604 | 26.358 | 0.689 | 1.0 | 0.321 | -0.29 | 26.401 | 0.783 | 0.7 | 0.512 | -0.20 |
CSF | 21.497 | 0.607 | 21.719 | 0.722 | -1.2 | 0.250 | 0.33 | 21.864 | 0.787 | -1.7 | 0.100 | 0.51 |
Hippocampus Right | 0.217 | 0.025 | 0.201 | 0.034 | 390.0 | 0.031* | -0.55 | 0.193 | 0.020 | 194.0 | 0.005* | -0.97 |
Hippocampus Left | 0.204 | 0.026 | 0.185 | 0.032 | 394.0 | 0.037* | -0.68 | 0.176 | 0.027 | 203.0 | 0.010* | -0.99 |
Hippocampus Both | 0.421 | 0.049 | 0.385 | 0.059 | 372.0 | 0.013* | -0.66 | 0.369 | 0.036 | 176.0 | 0.001* | -1.08 |
Duara atrophy ratings | ||||||||||||
Cortical Atrophy | 1.672 | 0.685 | 2.100 | 0.788 | 584.0 | 0.074 | 0.58 | 2.214 | 0.802 | 383.5 | 0.043* | 0.70 |
Lat. Ventricle, Rt. | 1.414 | 0.825 | 1.900 | 0.852 | 588.5 | 0.063 | 0.57 | 2.000 | 0.961 | 380.5 | 0.056 | 0.63 |
Lat. Ventricle, Lft. | 1.638 | 0.766 | 2.050 | 0.759 | 593.5 | 0.048* | 0.53 | 2.143 | 0.864 | 384.0 | 0.044* | 0.59 |
3rd Ventricle | 1.241 | 0.830 | 1.800 | 0.894 | 601.0 | 0.035* | 0.64 | 2.000 | 0.877 | 402.5 | 0.014* | 0.84 |
PWMH1 | 1.517 | 0.829 | 1.950 | 0.887 | 579.0 | 0.097 | 0.50 | 2.000 | 0.784 | 369.0 | 0.102 | 0.56 |
SWMH2 | 1.379 | 0.942 | 1.650 | 0.933 | 544.5 | 0.341 | 0.28 | 1.857 | 0.864 | 362.5 | 0.140 | 0.49 |
Hippocampus, Rt. | 1.379 | 0.820 | 2.100 | 1.119 | 603.5 | 0.033* | 0.74 | 2.286 | 1.204 | 399.5 | 0.018* | 0.89 |
Hippocampus, Lft. | 1.586 | 1.053 | 2.100 | 1.119 | 573.0 | 0.133 | 0.47 | 2.500 | 1.019 | 401.0 | 0.017* | 0.82 |
Entorhinal Cortex, Rt. | 1.138 | 1.217 | 1.950 | 1.099 | 611.5 | 0.024* | 0.68 | 2.214 | 0.975 | 410.0 | 0.010* | 0.88 |
Entorhinal Cortex, Lft. | 1.379 | 1.237 | 2.150 | 1.137 | 606.5 | 0.030* | 0.63 | 2.500 | 0.941 | 415.5 | 0.006* | 0.91 |
Parahippocampal | 0.931 | 1.163 | 1.450 | 1.099 | 572.0 | 0.127 | 0.45 | 1.643 | 1.082 | 377.0 | 0.066 | 0.59 |
Gyrus, Lft. | ||||||||||||
Parahippocampal | 1.034 | 1.239 | 1.750 | 1.251 | 592.0 | 0.056 | 0.57 | 2.000 | 1.177 | 395.0 | 0.024* | 0.74 |
Gyrus, Lft. | ||||||||||||
Medial Temporal | 1.149 | 0.941 | 1.835 | 1.012 | 612.0 | 0.027* | 0.69 | 2.049 | 1.003 | 409.5 | 0.012* | 0.88 |
Atrophy, Lt. | ||||||||||||
Medial Temporal | 1.334 | 1.084 | 2.001 | 1.014 | 602.5 | 0.042* | 0.62 | 2.334 | 0.887 | 412.5 | 0.010* | 0.91 |
Atrophy, Lt. |
appropriately tested by the t test or Wilcoxon Two-Sample Test
p<.05
Expressed as a percentage of intra-cranial volume
Periventricular White Matter Hyperintestine
Subcortical White Matter Abnormalities