Table 1.
CBF mean values ± SD from the uncorrected CBF maps and the PV corrected (kernel 3 and 7 voxels), respectively, calculated in the peak of the hypoperfused region in the right PAC, over the entire cluster in the right PAC, and over the whole GM (using individual masks). In the last column, the statistical significance (p‐value) of the difference between the two groups (HL vs. NH) is also reported
| Data | NH | HL | Difference (p‐value) | |
|---|---|---|---|---|
| Local peak in right PAC | CBF (mL/100 g/min) | 47.9 ± 9.7 | 39.7 ± 9.3 | p = 0.0017 |
| GM CBF (mL/100 g/min; PV kernel 3 voxels) | 131.4 ± 29.0 | 112.4 ± 27.3 | p = 0.013 | |
| GM CBF (mL/100 g/min; PV kernel 7 voxels) | 95.3 ± 16.2 | 82.6 ± 15.8 | p = 0.004 | |
| Cluster in the right PAC | CBF (mL/100 g/min) | 47.8 ± 9.6 | 39.6 ± 9.3 | p = 0.0019 |
| GM CBF (mL/100 g/min; PV kernel 3 voxels) | 123.0 ± 26.6 | 106.3 ± 24.3 | p = 0.017 | |
| GM CBF (mL/100 g/min; PV kernel 7 voxels) | 97.3 ± 17.4 | 85.2 ± 16.9 | p = 0.01 | |
| Whole GM (individual masks) | CBF (mL/100 g/min) | 36.6 ± 8.1 | 33.3 ± 8.2 | p = 0.13 |
| GM CBF (mL/100 g/min; PV kernel 3 voxels) | 87.7 ± 18.5 | 79.4 ± 20.3 | p = 0.11 | |
| GM CBF (mL/100 g/min; PV kernel 7 voxels) | 79.3 ± 17.5 | 71.7 ± 18.9 | p = 0.12 |
CBF = cerebral blood flow; GM = gray matter; HL = hearing loss; NH = normal hearing; PAC = primary auditory cortex.