Table 3 Overview of imaging analyses
| Â | Category | Side | Portion | Qualitative analysis | Semi-quantitative analysis | Quantitative analysis |
|---|---|---|---|---|---|---|
Perilymph | Signal intensity | Affected and unaffected sides | Cochlea, vestibule, and semicircular canals | Comparison between affected and unaffected sides | Grading (3-point-scale) | – |
Affected sides | Vestibule | – | – | Signal intensity ratio (SIR) | ||
Endolymph | Visualization | Affected side | Cochlea and vestibule | Visualization or no visualization | – | – |
Signal change | Affected side | Cochlea, vestibule, and semicircular canals | Presence of increased signal intensity | – | – | |
Endolymphatic hydrops | Affected side | Cochlea and vestibule | – | Grading (3-point-scale) | – |