TABLE 2.
General overview: Global GM, WM and CSF volume, and global GM and WM probability of mTBI patients and controls at T1 and T2
| mTBI | Controls | |||
|---|---|---|---|---|
| 6 Weeks | 1 Year | 6 Weeks | 1 Year | |
| GM Volume in cm3 (TIVcorr) | 437.11 (26,21) | 436.49 (23.50) | 434.61 (25.71) | 434.70 (28.48) |
| WM Volume in cm3 (TIVcorr) | 337.72 (16.74) | 337.02 (17.85) | 342.96 (18.33) | 343.73 (18.43) |
| CSF Volume in cm3 (TIVcorr) | 225.16 (27.96) | 226.49 (26.61) | 222.44 (27.50) | 221.58 (31.45) |
| Degree of Atrophy | 1.29 (0.05) | 1.29 (0.04) | 1.29 (0.04) | 1.29 (0.05) |
| GM Probability (TIVcorr) | 0.329 (0.016) | 0.329 (0.016) | 0.328 (0.016) | 0.328 (0.018) |
| WM Probability (TIVcorr) | 0.371 (0.017) | 0.372 (0.018) | 0.377 (0.018) | 0.377 (0.019) |
Note: TIV stands for total intracranial volume, the degree of atrophy was computed by dividing TIV by the sum of GM and WM volume, a higher value means higher atrophy, the standard deviation values are listed in brackets. The table shows that the global GM and WM parameter were quite stable for both groups from 6 weeks to 1 year after injury. MTBI patients had at both timepoints higher GM volumes and GM probability values than controls (all comparisons p > 0.05), but lower WM volumes and WM probability than controls (all comparisons p > 0.05).