A study on modelling cochlear duct mid-scalar length based on high-resolution computed tomography, and its effect on peri-modiolar and mid-scalar implant selection
OBJECTIVE: To determine cochlear duct mid-scalar length in normal cochleae and its role in selecting the correct peri-modiolar and mid-scalar implant length.
METHODS: The study included 40 patients with chronic otitis media who underwent high-resolution computed tomography of the temporal bone. The length and height of the basal turn, mid-modiolar height of the cochlea, mid-scalar and lateral wall length of the cochlear duct, and the 'X' line (the largest distance from mid-point of the round window to the mid-scalar point of the cochlear canal) were measured.
RESULTS: Cochlear duct lateral wall length (28.88 mm) was higher than cochlear duct mid-scalar length (20.08 mm) (p < 0.001). The simple linear regression equation for estimating complete cochlear duct length was: cochlear duct length = 0.2 + 2.85 × X line.
CONCLUSION: Using the mid-scalar point as the reference point (rather than the lateral wall) for measuring cochlear duct mid-scalar length, when deciding on the length of mid-scalar or peri-modiolar electrode, increases measurement accuracy. Mean cochlear duct mid-scalar length was compatible with peri-modiolar and mid-scalar implant lengths. The measurement method described herein may be useful for pre-operative peri-modiolar or mid-scalar implant selection.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2019 |
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| Erschienen: |
2019 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:133 |
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| Enthalten in: |
The Journal of laryngology and otology - 133(2019), 9 vom: 19. Sept., Seite 764-769 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Pamuk, G [VerfasserIn] |
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| Links: |
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| Themen: |
Cochlear Duct |
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| Anmerkungen: |
Date Revised 16.09.2021 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1017/S0022215119001671 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM300330103 |
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| 100 | 1 | |a Pamuk, G |e verfasserin |4 aut | |
| 245 | 1 | 2 | |a A study on modelling cochlear duct mid-scalar length based on high-resolution computed tomography, and its effect on peri-modiolar and mid-scalar implant selection |
| 264 | 1 | |c 2019 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Revised 16.09.2021 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a OBJECTIVE: To determine cochlear duct mid-scalar length in normal cochleae and its role in selecting the correct peri-modiolar and mid-scalar implant length | ||
| 520 | |a METHODS: The study included 40 patients with chronic otitis media who underwent high-resolution computed tomography of the temporal bone. The length and height of the basal turn, mid-modiolar height of the cochlea, mid-scalar and lateral wall length of the cochlear duct, and the 'X' line (the largest distance from mid-point of the round window to the mid-scalar point of the cochlear canal) were measured | ||
| 520 | |a RESULTS: Cochlear duct lateral wall length (28.88 mm) was higher than cochlear duct mid-scalar length (20.08 mm) (p < 0.001). The simple linear regression equation for estimating complete cochlear duct length was: cochlear duct length = 0.2 + 2.85 × X line | ||
| 520 | |a CONCLUSION: Using the mid-scalar point as the reference point (rather than the lateral wall) for measuring cochlear duct mid-scalar length, when deciding on the length of mid-scalar or peri-modiolar electrode, increases measurement accuracy. Mean cochlear duct mid-scalar length was compatible with peri-modiolar and mid-scalar implant lengths. The measurement method described herein may be useful for pre-operative peri-modiolar or mid-scalar implant selection | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Cochlear Duct | |
| 650 | 4 | |a Cochlear Implantation | |
| 650 | 4 | |a Electrodes, Implanted | |
| 650 | 4 | |a Radiographic Image Interpretation, Computer-Assisted | |
| 650 | 4 | |a Tomography, Spiral Computed | |
| 700 | 1 | |a Pamuk, A E |e verfasserin |4 aut | |
| 700 | 1 | |a Akgöz, A |e verfasserin |4 aut | |
| 700 | 1 | |a Öztürk, E |e verfasserin |4 aut | |
| 700 | 1 | |a Bajin, M D |e verfasserin |4 aut | |
| 700 | 1 | |a Sennaroğlu, L |e verfasserin |4 aut | |
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