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TNRT profiles with the Nucleus Research Platform 8 system


Lai, W K; Dillier, N; Weber, B P; Lenarz, T; Battmer, R; Gantz, B; Brown, C; Cohen, N; Waltzman, S; Skinner, M; Holden, L; Cowan, R; Busby, P; Killian, M (2009). TNRT profiles with the Nucleus Research Platform 8 system. International Journal of Audiology, 48(9):645-654.

Abstract

This study investigates the effect of the Nucleus CI24RE implant's neural response telemetry (NRT) system, which has less internal noise compared to its predecessor, the CI24M/R implant, on the NRT threshold (TNRT) profile across the array. CI24M/R measurements were simulated by ignoring CI24RE measurements with response amplitudes below 50 uV. Comparisons of the estimated TNRTs from the CI24RE measurements and the CI24M/R simulations suggest that, apart from a constant level difference, the TNRT profiles from the newer implant generally would not have differed very much from those of its predecessor. This view was also reflected by principal component analysis (PCA) results which revealed a 'shift' component similar to that reported by Smoorenburg et al (2002). On the whole, there is no indication that current practices of using the TNRT profiles for assisting with speech processor programming need to be revised for the CI24RE implant.

This study investigates the effect of the Nucleus CI24RE implant's neural response telemetry (NRT) system, which has less internal noise compared to its predecessor, the CI24M/R implant, on the NRT threshold (TNRT) profile across the array. CI24M/R measurements were simulated by ignoring CI24RE measurements with response amplitudes below 50 uV. Comparisons of the estimated TNRTs from the CI24RE measurements and the CI24M/R simulations suggest that, apart from a constant level difference, the TNRT profiles from the newer implant generally would not have differed very much from those of its predecessor. This view was also reflected by principal component analysis (PCA) results which revealed a 'shift' component similar to that reported by Smoorenburg et al (2002). On the whole, there is no indication that current practices of using the TNRT profiles for assisting with speech processor programming need to be revised for the CI24RE implant.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Otorhinolaryngology
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:June 2009
Deposited On:07 Sep 2009 09:56
Last Modified:05 Apr 2016 13:20
Publisher:Taylor & Francis
ISSN:1499-2027
Additional Information:This is an electronic version of an article published in Int J Audiol. 2009 Jun 9:1-10. [Epub ahead of print].
Publisher DOI:https://doi.org/10.1080/14992020902962413
PubMed ID:19513917
Permanent URL: https://doi.org/10.5167/uzh-20581

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