Table 3.
HARDI tractography (ILF and IFOF) of SNHL and NC participants
| Measurements | SNHL (N=14) Mean [SD] |
NC (N=14) Mean [SD] |
The rate of SNHL/NC | Cohen’s d |
|---|---|---|---|---|
| Volume (ml) | ||||
| ILF, left | 4.8 [2.3] | 7.9 [1.6] | 0.60 | 1.58 |
| ILF, right | 3.6 [1.2] | 7.9 [1.8] | 0.45 | 2.84 |
| IFOF, left | 5.7 [2.3] | 12.2 [2.8] | 0.47 | 2.55 |
| IFOF, right | 5.5 [2.0] | 12.8 [3.4] | 0.43 | 2.63 |
| Lengths (mm) | ||||
| ILF, left | 67.0 [10.8] | 50.2 [6.3] | 1.34 | 1.91 |
| ILF, right | 66.4 [14.5] | 43.2 [6.1] | 1.54 | 2.09 |
| IFOF, left | 98.2 [20.5] | 59.1 [13.4] | 1.66 | 2.26 |
| IFOF, right | 96.6 [23.3] | 60.6 [9.4] | 1.59 | 2.02 |
| FA | ||||
| ILF, left | 0.45 [0.06] | 0.48 [0.07] | 0.95 | 0.38 |
| ILF, right | 0.44 [0.06] | 0.47 [0.07] | 0.93 | 0.48 |
| IFOF, left | 0.48 [0.05] | 0.48 [0.06] | 0.99 | 0.09 |
| IFOF, right | 0.47 [0.04] | 0.47 [0.06] | 1.00 | 0.04 |
| ADC (mm2/s × 10−4) | ||||
| ILF, left | 9.6 [0.9] | 8.2 [1.8] | 1.16 | 0.93 |
| ILF, right | 9.6 [0.9] | 8.3 [1.9] | 1.16 | 0.87 |
| IFOF, left | 9.2 [0.9] | 8.0 [1.7] | 1.15 | 0.89 |
| IFOF, right | 9.2 [0.8] | 8.0 [1.7] | 1.14 | 0.87 |
Abbreviation; ADC, apparent diffusion coefficient; FA, fractional anisotropy; HARDI, High-angular resolution diffusion magnetic resonance imaging; IFOF, inferior fronto-occipital fasciculus; ILF, inferior longitudinal fasciculus; NC, Neurotypical control; SD, Standard deviation; SNHL, Sensorineural hearing loss