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Evaluation of five different cochlear implant designs: audiologic assessment and predictors of performance
B J Gantz1, R S Tyler, J F Knutson
1Department of Otolaryngology--Head and Neck Surgery, University of Iowa, Iowa City.
Abstract:
The audiologic performance of 54 postlingually deafened adults wearing cochlear implants was uniformly evaluated. The participants had 9 months' or more experience with one of five different cochlear prostheses (Los Angeles Single Channel (N = 11), Vienna Single Channel (N = 4), Melbourne Multichannel (N = 18), Utah Multichannel (N = 19), San Francisco Multichannel (N = 2). The multichannel designs enabled participants to recognize more environmental sounds, provided more speech reading enhancement, and enabled most users to understand limited speech in the sound-only condition, compared to the single-channel implant group.