To make an initial evaluation of obtained hippocampal volume values and Alzheimer's disease cortical signature values we made a spider diagram, that could be seen in Figure 2.

Fig 2: Spider-diagram with obtained values for hippocampal volume and Alzheimer's...

By performing the Kruskal-Wallis test we found statistically significant (p<0.05) differences between groups in:

• left hippocampus and right hippocampus where statistically significant differences were observed between D-MCI and D-NC groups, but no statistically significant differences between MCI-NC groups, 
• left entorhinal cortex and right entorhinal cortex where statistically significant differences were observed between D-MCI and D-NC groups, but no statistically significant differences between MCI-NC groups, 
• left supramarginal gyrus where statistically significant differences were observed between D-MCI and D-NC groups, but no statistically significant differences between MCI-NC groups, 
• left fusiform gyrus where statistically significant differences were observed between D-MCI and D-NC groups, but no statistically significant differences between MCI-NC groups, 
• left parahippocampal gyrus and right parahippocampal gyrus where statistically significant differences were observed between D-MCI and D-NC groups, but no statistically significant differences between MCI-NC groups, 

The descriptive statistics with average values and standard deviations are available in Figure 1.

Fig 1: Descriptive statistics where statistically significant differences between...