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Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
Parameter selection and programming recommendations for the ACE and CIS speech-processing strategies in the Nucleus
Kerrie L Plant1, Lesley A Whitford, Colleen E Psarros
1CRC for Cochlear Implant and Hearing Aid Innovation, Melbourne, Melbourne, Australia. kplant@cochlear.com.au
Cochlear Implants International
|September 16, 2008
Summary
Optimizing cochlear implant programming, specifically stimulation rate for the Advanced Combination Encoder (ACE) and Continuous Interleaved Sampling (CIS) strategies, significantly enhances speech perception. Adjusting the number of channels in CIS also improves outcomes.
Area of Science:
- Audiology
- Biomedical Engineering
- Neuroscience
Background:
- Cochlear implant technology significantly restores hearing.
- Speech processing strategies like ACE and CIS are crucial for implant efficacy.
- Optimizing programming parameters is essential for maximizing patient benefit.
Purpose of the Study:
- To evaluate programming parameters for ACE and CIS strategies in Nucleus 24 cochlear implants.
- To determine the impact of channel count and stimulation rate (CIS) and number of maxima (ACE) on speech perception.
- To provide recommendations for efficient clinical programming.
Main Methods:
- Investigated speech perception in adult cochlear implant users.
- Systematically adjusted stimulation rate and channel count for CIS strategy.
- Assessed the effect of varying the number of maxima for ACE strategy.
Main Results:
- Stimulation rate is a key factor for maximizing speech perception benefits.
- Optimizing channel count is important for the CIS strategy.
- Adjusting the number of maxima in ACE strategy (8 or 12) showed limited improvement in speech recognition.
Conclusions:
- Individualized programming, focusing on stimulation rate, is critical for cochlear implant recipients.
- Channel optimization is beneficial for the CIS strategy.
- ACE strategy parameter adjustments for the number of maxima may offer less benefit.