Table 2.
VBM results of the gray matter atrophy in OPVHs patients compared with CN.
| Brain area | T | MNI coordinate | ||
|---|---|---|---|---|
| x | y | z | ||
| Right supramarginal gyrus | 4.620 | 33.0 | −39.0 | 40.5 |
| Right angular gyrus | 4.087 | 55.5 | −31.5 | 30.0 |
| Left insula | 4.235 | −36.0 | 21.0 | −3.0 |
| Right middle temporal lobe | 4.260 | 39.0 | −48.0 | 40.5 |
| Right anterior cingulum | 3.740 | 1.5 | 34.5 | 18.0 |
| Left temporal lobe | 3.525 | −24.0 | 33.0 | 34.5 |
Differences in brain regions were obtained by subtracting the results for the OPVHs patients from those of the CNs using the two independent samples t-test (p < 0.001, uncorrected, with a clustering criteria of voxels > 30). OPVHs patients had significantly reduced gray matter in the right supramarginal gyrus, right angular gyrus, right middle temporal gyrus, right anterior cingulum and left insula compared to the CN. Abbreviations are as follows: MNI coordinates, Montreal Neurological institute coordinates.