Anatomical Variations of <i>Modiolus</i> in Relation with Vestibular and Cranial Morphology on CT Scans
Background: Fundamental knowledge of the anatomy and physiology of the inner ear is necessary to understand otologic diseases and therapeutic strategies. Aim: Evaluate the inter- and intraindividual variability of the modiolar position in relation to vestibular landmarks and cranial morphology on co...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Anatomia |
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| Online Access: | https://www.mdpi.com/2813-0545/2/1/9 |
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| author | Caroline Guigou Raabid Hussain Alain Lalande Alexis Bozorg Grayeli |
| author_facet | Caroline Guigou Raabid Hussain Alain Lalande Alexis Bozorg Grayeli |
| author_sort | Caroline Guigou |
| collection | DOAJ |
| description | Background: Fundamental knowledge of the anatomy and physiology of the inner ear is necessary to understand otologic diseases and therapeutic strategies. Aim: Evaluate the inter- and intraindividual variability of the modiolar position in relation to vestibular landmarks and cranial morphology on computed tomography scans (CT scan). Methods: Thirty CT scans of normal temporal bones (25 adults, 5 children) were analyzed after multiplanar reconstruction (MPR). The measurements for each ear included the angle of each semicircular canal (SCC) made by a line passing through the chosen plane and a line passing between the apex and the <i>ampulla</i> of the SCC studied and the angle of the <i>modiolus</i> in the transverse and sagittal planes. Results: Intraindividual asymmetries with a moderate to good right/left correlation were observed for the lateral SCC in the transverse plane, posterior SCC in the frontal plane, and the superior SCC in the sagittal plane and for the <i>modiolus</i> in the transverse plane. Conclusions: An anatomical variability in the cochlea, independent of other surrounding anatomical elements, seems to exist, but the SCCs seem to remain symmetrical. Significance: The orientation of the <i>modiolus</i> is an important knowledge to acquire during presurgical planning prior to transmodiolar auditory nerve implantation. |
| first_indexed | 2024-03-11T07:02:59Z |
| format | Article |
| id | doaj.art-e375c83d31424c6e904085f0200be740 |
| institution | Directory Open Access Journal |
| issn | 2813-0545 |
| language | English |
| last_indexed | 2024-03-11T07:02:59Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Anatomia |
| spelling | doaj.art-e375c83d31424c6e904085f0200be7402023-11-17T09:10:12ZengMDPI AGAnatomia2813-05452023-03-01219910810.3390/anatomia2010009Anatomical Variations of <i>Modiolus</i> in Relation with Vestibular and Cranial Morphology on CT ScansCaroline Guigou0Raabid Hussain1Alain Lalande2Alexis Bozorg Grayeli3Department of Otolaryngology-Head and Neck Surgery, Dijon University Hospital, 21000 Dijon, FranceImViA Laboratory, Burgundy-Franche-Comte University, 21000 Dijon, FranceImViA Laboratory, Burgundy-Franche-Comte University, 21000 Dijon, FranceDepartment of Otolaryngology-Head and Neck Surgery, Dijon University Hospital, 21000 Dijon, FranceBackground: Fundamental knowledge of the anatomy and physiology of the inner ear is necessary to understand otologic diseases and therapeutic strategies. Aim: Evaluate the inter- and intraindividual variability of the modiolar position in relation to vestibular landmarks and cranial morphology on computed tomography scans (CT scan). Methods: Thirty CT scans of normal temporal bones (25 adults, 5 children) were analyzed after multiplanar reconstruction (MPR). The measurements for each ear included the angle of each semicircular canal (SCC) made by a line passing through the chosen plane and a line passing between the apex and the <i>ampulla</i> of the SCC studied and the angle of the <i>modiolus</i> in the transverse and sagittal planes. Results: Intraindividual asymmetries with a moderate to good right/left correlation were observed for the lateral SCC in the transverse plane, posterior SCC in the frontal plane, and the superior SCC in the sagittal plane and for the <i>modiolus</i> in the transverse plane. Conclusions: An anatomical variability in the cochlea, independent of other surrounding anatomical elements, seems to exist, but the SCCs seem to remain symmetrical. Significance: The orientation of the <i>modiolus</i> is an important knowledge to acquire during presurgical planning prior to transmodiolar auditory nerve implantation.https://www.mdpi.com/2813-0545/2/1/9presurgical planningtemporal bone imagingsemicircular canals<i>modiolus</i> |
| spellingShingle | Caroline Guigou Raabid Hussain Alain Lalande Alexis Bozorg Grayeli Anatomical Variations of <i>Modiolus</i> in Relation with Vestibular and Cranial Morphology on CT Scans Anatomia presurgical planning temporal bone imaging semicircular canals <i>modiolus</i> |
| title | Anatomical Variations of <i>Modiolus</i> in Relation with Vestibular and Cranial Morphology on CT Scans |
| title_full | Anatomical Variations of <i>Modiolus</i> in Relation with Vestibular and Cranial Morphology on CT Scans |
| title_fullStr | Anatomical Variations of <i>Modiolus</i> in Relation with Vestibular and Cranial Morphology on CT Scans |
| title_full_unstemmed | Anatomical Variations of <i>Modiolus</i> in Relation with Vestibular and Cranial Morphology on CT Scans |
| title_short | Anatomical Variations of <i>Modiolus</i> in Relation with Vestibular and Cranial Morphology on CT Scans |
| title_sort | anatomical variations of i modiolus i in relation with vestibular and cranial morphology on ct scans |
| topic | presurgical planning temporal bone imaging semicircular canals <i>modiolus</i> |
| url | https://www.mdpi.com/2813-0545/2/1/9 |
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