Table 2.
Measure | 3 T value (SD) | 7 T value (SD) | p-Value |
---|---|---|---|
Broca | |||
Voxel count | 27.6 (13.3) | 24.8 (15.5) | n.s. |
Mean t-value | 7.2 (1.3) | 7.7 (2.7) | n.s. |
Peak t-value | 9.4 (2.5) | 10.2 (3.8) | n.s. |
Percentage signal change (%, mean of fROI) | 1.0 (0.8) | 1.6 (1.7) | n.s. |
Contrast to noise ratio (CNR) | 1.5 (0.7) | 1.6 (0.7) | n.s. |
Peak CNR | 2.2 (0.9) | 2.2 (1.1) | n.s. |
Wernicke | |||
Voxel count | 30.2 (14.7) | 32.6 (15.0) | n.s. |
Mean t-value | 8.3 (2.7) | 11.1 (4.4) | 0.004 |
Peak t-value | 11.5 (4.7) | 16.3 (6.6) | 0.0007 |
Percentage signal change (%, mean of fROI) | 1.1 (0.5) | 1.5 (0.7) | 0.005 |
Contrast to noise ratio (CNR) | 1.9 (0.7) | 2.3 (0.9) | 0.006 |
Peak CNR | 2.8 (1.3) | 3.9 (1.7) | 0.0002 |
Motion indication | |||
Translation (mm) | 0.09 (0.05) | 0.17 (0.08) | 0.00004 |
Rotation (rad) | |||
Pitch | 8.9E− 4 (9.1E − 4) | 1.1E − 3 (7.0E − 4) | n.s. |
Roll | 3.7E − 4 (1.7E − 4) | 5.3E − 4 (3.1E − 4) | 0.004 |
Yaw | 2.9E − 4 (1.3E − 4) | 4.0E − 4 (2.6E − 4) | 0.017 |
Static image quality | |||
GSRA | 5.3E − 2 (1.2E − 2) | 1.1E − 1 (6.9E − 2) | 0.00013 |