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Interpreting the interphase gap effect on the electrically evoked compound action potential
Yi Yuan1, Jeffrey Skidmore1, Shuman He
1Department of Otolaryngology-Head and Neck Surgery, The Ohio State University, Columbus, Ohio 43212, USA.
Abstract:
This study demonstrated the effects of using different quantification methods and parameter scales on the sensitivity of the electrically evoked compound action potential (eCAP) to changes in the interphase gap (IPG). The IPG effect measured in two groups of cochlear implant (CI) users with different cochlear nerve (CN) health on seven eCAP measures was quantified using an absolute and a proportional difference method. The IPG effect provides an indicator for the functional status of the CN in human CI users. Specifying how the IPG effect is quantified is critical for accurate result interpretation.
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