Table 2.
Regional cortical GM volumes from FreeSurfer segmentation (in cubic millimeters) for scans with and without externally placed fat layers.
| Tissue | Participant 1 | Participant 2 | Participant 3 | Mean ± standard deviation across participants |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| W/o fat | With fat | % diff | W/o fat | With fat | % diff | W/o fat | With fat | % diff | W/o fat | With fat | |
| tGM | 93275 | 83071 | −11.0 | 105193 | 91954 | −13.0 | 93429 | 89243 | −9.0 | 97299.0 ± 6836.8 |
88089.3 ± 4552.5 |
| fGM | 139813 | 133378 | −4.6 | 145751 | 144917 | −0.6 | 115513 | 114862 | −0.5 | 133692.3 ± 16021.3 |
131052.3 ± 15161.9 |
| oGM | 52782 | 52184 | −1.0 | 62633 | 61927 | −1.0 | 50359 | 48889 | −3.0 | 55258.0 ± 6500.8 |
54333.3 ± 6779.5 |
| pGM | 117193 | 115865 | −1.0 | 134338 | 121965 | −9.0 | 107542 | 105816 | −2.0 | 119691.0 ± 13571.5 |
114548.7 ± 8154.6 |
tGM = temporal gray matter, fGM = frontal gray matter, oGM = occipital gray matter, pGM = parietal gray matter, W/o = without