Implications of phase difference and amplitude ratio from intracochlear and extracochlear electrocochleography in normal-hearing guinea pigs

Key Points

• Cochlear trauma patterns can be reflected in phase difference and amplitude ratio metrics.
• Combining small or large phase differences and amplitude ratios may indicate specific cochlear damage.
• Analysis of electrophysiological thresholds is complemented by examining intracochlear electrode readings.
• These findings may enhance diagnostic approaches for assessing cochlear integrity after implantation.