ROI analysis and tract-specific analysis of FA values in patients with iNPH and control subjectsa
iNPH (n = 20) | Controls (n = 20) | |
---|---|---|
ROI analysis | ||
Corpus callosum: | ||
a) Genu | 0.71 ± 0.07 | 0.78 ± 0.06 |
b) Anterior third of body | 0.58 ± 0.07 | 0.64 ± 0.06 |
c) Posterior third of body | 0.55 ± 0.09b | 0.69 ± 0.06 |
d) Splenium | 0.68 ± 0.11b | 0.78 ± 0.05 |
e) Juxtacortical WM in frontal lobe | 0.50 ± 0.03b/0.50 ± 0.04b | 0.61 ± 0.04/0.62 ± 0.04 |
f) Juxtacortical WM in parietal lobe | 0.44 ± 0.04b/0.44 ± 0.05b | 0.58 ± 0.04/0.56 ± 0.06 |
g) WM around posterior horn of lateral ventricle | 0.27 ± 0.07b/0.27 ± 0.06b | 0.39 ± 0.07/0.34 ± 0.05 |
h) WM around anterior horn of lateral ventricle | 0.25 ± 0.07b/0.24 ± 0.07b | 0.36 ± 0.06/0.32 ± 0.06 |
i) Anterior limbs of internal capsule | 0.49 ± 0.05/0.49 ± 0.03 | 0.48 ± 0.04/0.49 ± 0.05 |
j) WM around posterior horn of lateral ventricle | 0.48 ± 0.03b/0.48 ± 0.03b | 0.60 ± 0.05/0.61 ± 0.04 |
k) WM in temporal lobe | 0.51 ± 0.04/0.51 ± 0.03 | 0.52 ± 0.04/0.52 ± 0.03 |
Tract-specific analysis | ||
Area 1 | 0.41 ± 0.04b/0.41 ± 0.03b | 0.45 ± 0.03/0.46 ± 0.03 |
Area 2 | 0.53 ± 0.06b/0.55 ± 0.05b | 0.43 ± 0.04/0.44 ± 0.05 |
Area 3 | 0.69 ± 0.04b/0.71 ± 0.04b | 0.62 ± 0.05/0.65 ± 0.05 |
Area 4 | 0.60 ± 0.05/0.62 ± 0.05 | 0.58 ± 0.05/0.61 ± 0.04 |