A comparison of electrocochleography recording techniques

Dual channel electrocochleography recordings were obtained in 50 ears (25 patients). The summating potential/action potential amplitude ratios from horizontal and vertical recording montages were compared. Our findings show good summating potential/action potential ratio agreement between the two recording montages when an established normal criterion is used. Further statistical analysis may allow us to use the horizontal and vertical montages interchangeably to aid in the identification of summating and action potentials.