Comparison of LGN volumes before versus after applying a VDC mask (n = 55)a
| Condition | Hemi | Repeated Measurement (mean) | Mauchly Sphericity Test | Greenhouse-Geisser Correction | |||||
|---|---|---|---|---|---|---|---|---|---|
| 1st | 2nd | 3rd | W | Sig. | ϵ | F | Sig. | ||
| LGN volume before mask filtering | Left | 103.455 ± 10.561 | 104.473 ± 11.825 | 104.182 ± 12.412 | – | – | – | – | – |
| Right | 105.709 ± 11.512 | 105.018 ± 11.176 | 104.527 ± 13.179 | – | – | – | – | – | |
| LGN volume after mask filtering | Left | 77.200 ± 14.213 | 76.945 ± 14.431 | 75.290 ± 16.311 | 0.691 | 0.000 | 0.764 | 1.906 | 0.154 |
| Right | 86.255 ± 10.729 | 85.691 ± 11.068 | 86.691 ± 13.043 | 0.430 | 0.000 | 0.637 | 0.431 | 0.489 | |
Note:—Hemi indicates hemisphere; W, Mauchly's W value; Sig., significance; ϵ, estimating sphericity; –, no statistical analysis.
↵a As it was shown in this table, the obtained LGN from the region-growing algorithm may contain pixels that belong to neighboring tissues, such as the thalamus, hippocampus, or CSF. The repeated-measures ANOVA analysis was performed on the results filtered by the VDC mask in the following part of this article.