Using Anatomy-Based Fitting to Reduce Frequency-to-Place Mismatch in Experienced Bilateral Cochlear Implant Users: A Promising Concept
Fitting cochlear implant (CI) users can be challenging. Anatomy-based fitting (ABF) maps may have the potential to lead to better objective and subjective outcomes than conventional clinically based fitting (CBF) methods. ABF maps were created via information derived from exact electrode contact pos...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Journal of Personalized Medicine |
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| Online Access: | https://www.mdpi.com/2075-4426/13/7/1109 |
| _version_ | 1797588739087663104 |
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| author | Anja Kurz David Herrmann Rudolf Hagen Kristen Rak |
| author_facet | Anja Kurz David Herrmann Rudolf Hagen Kristen Rak |
| author_sort | Anja Kurz |
| collection | DOAJ |
| description | Fitting cochlear implant (CI) users can be challenging. Anatomy-based fitting (ABF) maps may have the potential to lead to better objective and subjective outcomes than conventional clinically based fitting (CBF) methods. ABF maps were created via information derived from exact electrode contact positions, which were determined via post-operative high-resolution flat panel volume computer tomography and clinical fitting software. The outcome measures were speech understanding in quiet and noise and self-perceived sound quality with the CBF map and with the ABF map. Participants were 10 experienced bilateral CI users. The ABF map provided better speech understanding in quiet and noisy environments compared to the CBF map. Additionally, two approaches of reducing the frequency-to-place mismatch revealed that participants are more likely to accept the ABF map if their electrode array is inserted deep enough to stimulate the apical region of their cochlea. This suggests an Angular Insertion Depth of the most apical contact of around 720°–620°. Participants had better speech understanding in quiet and noise with the ABF map. The maps’ self-perceived sound quality was similar. ABF mapping may be an effective tool for compensating the frequency-to-place mismatch in experienced bilateral CI users. |
| first_indexed | 2024-03-11T00:56:18Z |
| format | Article |
| id | doaj.art-ff51db61a43b4a19a8efbf4ec361bbb2 |
| institution | Directory Open Access Journal |
| issn | 2075-4426 |
| language | English |
| last_indexed | 2024-03-11T00:56:18Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Personalized Medicine |
| spelling | doaj.art-ff51db61a43b4a19a8efbf4ec361bbb22023-11-18T20:03:44ZengMDPI AGJournal of Personalized Medicine2075-44262023-07-01137110910.3390/jpm13071109Using Anatomy-Based Fitting to Reduce Frequency-to-Place Mismatch in Experienced Bilateral Cochlear Implant Users: A Promising ConceptAnja Kurz0David Herrmann1Rudolf Hagen2Kristen Rak3Department of Otorhinolaryngology, Head & Neck Surgery, Comprehensive Hearing Center, University of Würzburg, Josef-Schneider-Str. 11, 97080 Würzburg, GermanyDepartment of Otorhinolaryngology, Head & Neck Surgery, Comprehensive Hearing Center, University of Würzburg, Josef-Schneider-Str. 11, 97080 Würzburg, GermanyDepartment of Otorhinolaryngology, Head & Neck Surgery, Comprehensive Hearing Center, University of Würzburg, Josef-Schneider-Str. 11, 97080 Würzburg, GermanyDepartment of Otorhinolaryngology, Head & Neck Surgery, Comprehensive Hearing Center, University of Würzburg, Josef-Schneider-Str. 11, 97080 Würzburg, GermanyFitting cochlear implant (CI) users can be challenging. Anatomy-based fitting (ABF) maps may have the potential to lead to better objective and subjective outcomes than conventional clinically based fitting (CBF) methods. ABF maps were created via information derived from exact electrode contact positions, which were determined via post-operative high-resolution flat panel volume computer tomography and clinical fitting software. The outcome measures were speech understanding in quiet and noise and self-perceived sound quality with the CBF map and with the ABF map. Participants were 10 experienced bilateral CI users. The ABF map provided better speech understanding in quiet and noisy environments compared to the CBF map. Additionally, two approaches of reducing the frequency-to-place mismatch revealed that participants are more likely to accept the ABF map if their electrode array is inserted deep enough to stimulate the apical region of their cochlea. This suggests an Angular Insertion Depth of the most apical contact of around 720°–620°. Participants had better speech understanding in quiet and noise with the ABF map. The maps’ self-perceived sound quality was similar. ABF mapping may be an effective tool for compensating the frequency-to-place mismatch in experienced bilateral CI users.https://www.mdpi.com/2075-4426/13/7/1109cochlear implantanatomy-based fittingfrequency-to-place mismatchspeech perception |
| spellingShingle | Anja Kurz David Herrmann Rudolf Hagen Kristen Rak Using Anatomy-Based Fitting to Reduce Frequency-to-Place Mismatch in Experienced Bilateral Cochlear Implant Users: A Promising Concept Journal of Personalized Medicine cochlear implant anatomy-based fitting frequency-to-place mismatch speech perception |
| title | Using Anatomy-Based Fitting to Reduce Frequency-to-Place Mismatch in Experienced Bilateral Cochlear Implant Users: A Promising Concept |
| title_full | Using Anatomy-Based Fitting to Reduce Frequency-to-Place Mismatch in Experienced Bilateral Cochlear Implant Users: A Promising Concept |
| title_fullStr | Using Anatomy-Based Fitting to Reduce Frequency-to-Place Mismatch in Experienced Bilateral Cochlear Implant Users: A Promising Concept |
| title_full_unstemmed | Using Anatomy-Based Fitting to Reduce Frequency-to-Place Mismatch in Experienced Bilateral Cochlear Implant Users: A Promising Concept |
| title_short | Using Anatomy-Based Fitting to Reduce Frequency-to-Place Mismatch in Experienced Bilateral Cochlear Implant Users: A Promising Concept |
| title_sort | using anatomy based fitting to reduce frequency to place mismatch in experienced bilateral cochlear implant users a promising concept |
| topic | cochlear implant anatomy-based fitting frequency-to-place mismatch speech perception |
| url | https://www.mdpi.com/2075-4426/13/7/1109 |
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