In-vitro characterization of a cochlear implant system for recording of evoked compound action potentials

摘要

BackgroundModern cochlear implants have integrated recording systems for measuring electrically evoked compound action potentials of the auditory nerve. The characterization of such recording systems is important for establishing a reliable basis for the interpretation of signals acquired in vivo. In this study we investigated the characteristics of the recording system integrated into the MED-EL PULSARCI¹⁰⁰ cochlear implant, especially its linearity and resolution, in order to develop a mathematical model describing the recording system.