Table 4 Grading and comparisons of the signal intensity of the perilymph (n = 42)
|  | PPI (n = 42) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Grading of signal intensity | Comparisons of signal intensity between affected and unaffected sides | ||||||||
Perilymph | Affected side Mean (SD) | Unaffected side Mean (SD) | AC1 value (95% CI) Affected side | AC1 value (95% CI) Unaffected side | p value (Wilcoxon signed-rank test) | Higher signal on the affected side | Equal signal | Higher signal on the unaffected side | AC1 value (95% CI) |
Basal turn of CD | 1.69 (0.64) | 0.07 (0.26) | 0.92 (0.83–1.02) | 0.98 (0.96–1.00) |  < .0001 | 38 | 4 | 0 | 0.97 (0.84–1.00) |
Middle/apical turn of CD | 1.67 (0.69) | 0 | 0.93 (0.85–1.02) | 1.00 (1.00–1.00) |  < .0001 | 37 | 5 | 0 | 0.97 (0.93–1.00) |
Vestibule | 1.67 (0.69) | 0.02 (0.15) | 0.98 (0.95–1.01) | 0.99 (0.98–1.01) |  < .0001 | 37 | 4 | 1 | 0.94 (0.87–1.01) |
Anterior SCC | 1.41 (0.81) | 0 | 0.75 (0.60–0.90) | 1.00 (1.00–1.00) |  < .0001 | 34 | 8 | 0 | 0.98 (0.96–1.01) |
Lateral SCC | 1.36 (0.79) | 0 | 0.75 (0.60–0.90) | 1.00 (1.00–1.00) |  < .0001 | 33 | 9 | 0 | 0.99 (0.97–1.01) |
Posterior SCC | 1.45 (0.77) | 0 | 0.86 (0.77–0.95) | 0.99 (0.98–1.01) |  < .0001 | 35 | 7 | 0 | 0.99 (0.97–1.01) |
Overall mean | 1.45 | 0.02 | Â | Â | Â | 36 | 6 | 0 | Â |