The Relationship Between Cochlear Nerve and Cochlear Nerve Canal Dimensions in Incomplete Partition Types
Introduction:Incomplete partition (IP) type and accompanying cochlear nerve (CN) anomalies affect the patient’s management. We revealed the cochlear nerve area (CNA), cochlear nerve canal width (CNCW), and inner auditory canal width (IACW) of IP types.Methods:We retrospectively scanned patients with...
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| Format: | Article |
| Language: | English |
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Galenos Yayinevi
2023-05-01
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| Series: | İstanbul Medical Journal |
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http://istanbulmedicaljournal.org/archives/archive-detail/article-preview/the-relationship-between-cochlear-nerve-and-cochle/60521
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| _version_ | 1797813606500270080 |
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| author | Direnç Özlem Aksoy Kemal Furkan Kaldırımoğlu Yeşim Karagöz Melis Baykara Ulusan Abdullah Soydan Mahmutoğlu |
| author_facet | Direnç Özlem Aksoy Kemal Furkan Kaldırımoğlu Yeşim Karagöz Melis Baykara Ulusan Abdullah Soydan Mahmutoğlu |
| author_sort | Direnç Özlem Aksoy |
| collection | DOAJ |
| description | Introduction:Incomplete partition (IP) type and accompanying cochlear nerve (CN) anomalies affect the patient’s management. We revealed the cochlear nerve area (CNA), cochlear nerve canal width (CNCW), and inner auditory canal width (IACW) of IP types.Methods:We retrospectively scanned patients with IP. There were 88 IP ears (26 IP type 1, 54 IP type 2, 8 IP type 3) and 54 controls. The CNCW and IACW were measured in axial temporal computed tomography sections. The CNA and facial nerve area (FNA) were measured in the distal IAC on the sagittal-oblique plane of 3D constructive interference steady-state T2-weighted magnetic resonance images.Results:CNA and CNA/FNA values for each IP type differed significantly compared with the control group. However, the CNCW and IACW values did not differ significantly. The CNA was the least in IP 1 cases. Five CN aplasia were detected, and all were associated with IP type 1 anomaly (3.5% of all, 5.6% of IP types, and 19.2% of IP type 1 cases). CN hypoplasia was observed in 10 IP type 1 (38.5% of IP 1), 6 IP type 2 (6.8% of IP type 2), and 1 IP type 3 (12.5% of IP type 3) ears. None of the CN hypoplasia had a CNC hypoplasia.Conclusion:CN aplasia and hypoplasia most frequently accompanied with IP type 1 in our study. Therefore, they need an extra interest in CN evaluation. CNCW and IACW are not very useful in predicting CN dysplasia in IP cases. |
| first_indexed | 2024-03-13T07:54:14Z |
| format | Article |
| id | doaj.art-92e872fe5cb745f8a4ea1919c6d7ab0c |
| institution | Directory Open Access Journal |
| issn | 2619-9793 2148-094X |
| language | English |
| last_indexed | 2024-03-13T07:54:14Z |
| publishDate | 2023-05-01 |
| publisher | Galenos Yayinevi |
| record_format | Article |
| series | İstanbul Medical Journal |
| spelling | doaj.art-92e872fe5cb745f8a4ea1919c6d7ab0c2023-06-02T07:03:31ZengGalenos Yayineviİstanbul Medical Journal2619-97932148-094X2023-05-0124215515910.4274/imj.galenos.2023.2429413049054The Relationship Between Cochlear Nerve and Cochlear Nerve Canal Dimensions in Incomplete Partition TypesDirenç Özlem Aksoy0Kemal Furkan Kaldırımoğlu1Yeşim Karagöz2Melis Baykara Ulusan3Abdullah Soydan Mahmutoğlu4 University of Health Sciences Turkey, İstanbul Training and Research Hospital, Clinic of Radiology, İstanbul, Turkey University of Health Sciences Turkey, İstanbul Training and Research Hospital, Clinic of Radiology, İstanbul, Turkey University of Health Sciences Turkey, İstanbul Training and Research Hospital, Clinic of Radiology, İstanbul, Turkey University of Health Sciences Turkey, İstanbul Training and Research Hospital, Clinic of Radiology, İstanbul, Turkey University of Health Sciences Turkey, İstanbul Training and Research Hospital, Clinic of Radiology, İstanbul, Turkey Introduction:Incomplete partition (IP) type and accompanying cochlear nerve (CN) anomalies affect the patient’s management. We revealed the cochlear nerve area (CNA), cochlear nerve canal width (CNCW), and inner auditory canal width (IACW) of IP types.Methods:We retrospectively scanned patients with IP. There were 88 IP ears (26 IP type 1, 54 IP type 2, 8 IP type 3) and 54 controls. The CNCW and IACW were measured in axial temporal computed tomography sections. The CNA and facial nerve area (FNA) were measured in the distal IAC on the sagittal-oblique plane of 3D constructive interference steady-state T2-weighted magnetic resonance images.Results:CNA and CNA/FNA values for each IP type differed significantly compared with the control group. However, the CNCW and IACW values did not differ significantly. The CNA was the least in IP 1 cases. Five CN aplasia were detected, and all were associated with IP type 1 anomaly (3.5% of all, 5.6% of IP types, and 19.2% of IP type 1 cases). CN hypoplasia was observed in 10 IP type 1 (38.5% of IP 1), 6 IP type 2 (6.8% of IP type 2), and 1 IP type 3 (12.5% of IP type 3) ears. None of the CN hypoplasia had a CNC hypoplasia.Conclusion:CN aplasia and hypoplasia most frequently accompanied with IP type 1 in our study. Therefore, they need an extra interest in CN evaluation. CNCW and IACW are not very useful in predicting CN dysplasia in IP cases. http://istanbulmedicaljournal.org/archives/archive-detail/article-preview/the-relationship-between-cochlear-nerve-and-cochle/60521 incomplete partitioncochlear nervecochlear nerve canal widthinner auditory canal width |
| spellingShingle | Direnç Özlem Aksoy Kemal Furkan Kaldırımoğlu Yeşim Karagöz Melis Baykara Ulusan Abdullah Soydan Mahmutoğlu The Relationship Between Cochlear Nerve and Cochlear Nerve Canal Dimensions in Incomplete Partition Types İstanbul Medical Journal incomplete partition cochlear nerve cochlear nerve canal width inner auditory canal width |
| title | The Relationship Between Cochlear Nerve and Cochlear Nerve Canal Dimensions in Incomplete Partition Types |
| title_full | The Relationship Between Cochlear Nerve and Cochlear Nerve Canal Dimensions in Incomplete Partition Types |
| title_fullStr | The Relationship Between Cochlear Nerve and Cochlear Nerve Canal Dimensions in Incomplete Partition Types |
| title_full_unstemmed | The Relationship Between Cochlear Nerve and Cochlear Nerve Canal Dimensions in Incomplete Partition Types |
| title_short | The Relationship Between Cochlear Nerve and Cochlear Nerve Canal Dimensions in Incomplete Partition Types |
| title_sort | relationship between cochlear nerve and cochlear nerve canal dimensions in incomplete partition types |
| topic | incomplete partition cochlear nerve cochlear nerve canal width inner auditory canal width |
| url |
http://istanbulmedicaljournal.org/archives/archive-detail/article-preview/the-relationship-between-cochlear-nerve-and-cochle/60521
|
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