Table 2.
HARDI tractography (AF, UF, CF, Fx, and CP) of SNHL and NC participants
| Measurements | SNHL (N=17) Mean [SD] |
NC (N=17) Mean [SD] |
The rate of SNHL/NC | Cohen’s d |
|---|---|---|---|---|
| Volume (ml) | ||||
| AF, left | 12.3 [4.6] | 14.4 [5.2] | 0.85 | 0.43 |
| AF, right | 11.4 [3.1] | 15.2 [6.0] | 0.75 | 0.79 |
| UF, left | 3.1 [1.5] | 5.7 [0.9] | 0.53 | 2.18 |
| UF, right | 2.8 [1.2] | 5.9 [1.4] | 0.48 | 2.38 |
| CF, left | 6.0 [1.4] | 6.8 [1.8] | 0.88 | 1.30 |
| CF, right | 5.5 [1.4] | 6.3 [1.5] | 0.87 | 1.13 |
| Fx, left | 4.0 [1.2] | 6.2 [1.9] | 0.65 | 1.38 |
| Fx, right | 4.0 [1.7] | 6.0 [2.1] | 0.68 | 1.02 |
| CP | 83.7 [21.4] | 97.6 [37.6] | 0.86 | 0.45 |
| Lengths (mm) | ||||
| AF, left | 47.8 [14.2] | 43.9 [11.0] | 1.09 | 0.31 |
| AF, right | 45.7 [12.6] | 41.8 [8.2] | 1.09 | 0.36 |
| UF, left | 54.5 [16.5] | 39.0 [11.2] | 1.40 | 1.10 |
| UF, right | 66.0 [18.0] | 41.7 [11.6] | 1.58 | 1.61 |
| CF, left | 29.8 [12.8] | 39.8 [10.4] | 0.75 | 0.03 |
| CF, right | 24.8 [8.6] | 36.2 [7.8] | 0.69 | 0.88 |
| Fx, left | 50.9 [17.2] | 34.1 [7.5] | 1.49 | 1.27 |
| Fx, right | 35.7 [14.6] | 31.9 [8.3] | 1.12 | 0.32 |
| CP | 69.7 [13.3] | 63.8 [13.0] | 1.09 | 0.46 |
| FA | ||||
| AF, left | 0.42 [0.05] | 0.42 [0.07] | 1.01 | 0.04 |
| AF, right | 0.42 [0.04] | 0.42 [0.06] | 0.99 | 0.05 |
| UF, left | 0.40 [0.05] | 0.39 [0.07] | 1.02 | 0.14 |
| UF, right | 0.40 [0.04] | 0.39 [0.08] | 1.02 | 0.15 |
| CF, left | 0.43 [0.07] | 0.43 [0.07] | 1.00 | 0.18 |
| CF, right | 0.41 [0.05] | 0.42 [0.07] | 0.98 | 0.22 |
| Fx, left | 0.36 [0.06] | 0.38 [0.08] | 0.96 | 0.22 |
| Fx, right | 0.33 [0.04] | 0.37 [0.09] | 0.89 | 0.59 |
| CP | 0.56 [0.03] | 0.52 [0.07] | 1.07 | 0.66 |
| ADC (mm2/s × 10−4) | ||||
| AF, left | 8.9 [1.2] | 7.5 [1.7] | 1.19 | 0.95 |
| AF, right | 8.8 [0.6] | 7.5 [1.7] | 1.17 | 0.99 |
| UF, left | 9.1 [0.6] | 7.9 [1.5] | 1.15 | 1.02 |
| UF, right | 9.3 [0.5] | 7.9 [1.5] | 1.17 | 1.15 |
| CF, left | 9.2 [0.7] | 7.7 [1.6] | 1.18 | 1.18 |
| CF, right | 9.2 [0.6] | 7.7 [1.5] | 1.20 | 1.31 |
| Fx, left | 12.8 [1.7] | 9.5 [2.1] | 1.35 | 1.75 |
| Fx, right | 13.1 [2.1] | 9.7 [2.3] | 1.36 | 1.59 |
| CP | 9.5 [0.8] | 7.69 [1.8] | 1.23 | 1.27 |
Abbreviation; ADC, apparent diffusion coefficient; AF, arcuate fasciculus; CF, cingulum fasciculus; CP, callosal pathway; FA, fractional anisotropy; Fx, fornix; HARDI, High-angular resolution diffusion magnetic resonance imaging; NC, Neurotypical control; SD, Standard deviation; SNHL, Sensorineural hearing loss; UF, uncinate fasciculus