Evaluation of Variations of the Chorda Tympani Nerve from The Facial Nerve on Resolution CT

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dc.contributor.authorOzel, Mehmet Ali
dc.contributor.authorBuyukkaya, Ramazan
dc.date.accessioned2025-10-11T20:47:58Z
dc.date.available2025-10-11T20:47:58Z
dc.date.issued2025
dc.departmentDüzce Üniversitesien_US
dc.description.abstractObjective: The aim of this study is to define the anatomical variations of the chorda tympani nerve originating from the facial nerve on high resolution CT (HRCT). Method: A retrospective study of 100 patients who underwent temporal bone HRCT imaging in Duzce University, Department of Radiology. Individuals with normal bone structure at least on one side, were included in the study. Multiplanar reconstruction images were created then chorda tympani was imaged and measurements were performed. Results: Thirty-seven bone were excluded. When the originating localizations of the chorda tympani from the facial nerve were examined, 19(11.7%) Aanterior, 85(52.1%) anterolateral, 55(33.7%) lateral and 4(2.5%) posterolateral origins. The distance from the origin of the chorda tympani to the stylomastoid foramen was measured as 3.7 +/- 1.6 mm. The originating angle of the chorda tympani from the facial nerve was measured as 28.2 +/- 10.7 degrees. The widest distance between the chorda tympani and the mastoid segment of the facial nerve was measured as 2.3 +/- 0.6mm. The furthest distance between the mastoid segment of the facial nerve and chorda tympani is inversely correlated with the distance between chorda tympani and stylomastoid foramen. The angle of originating chorda tympani from facial nerve is directly correlated with the distance between chorda tympani and stylomastoid foramen. The ratio of extratemporal branching of chorda tympani is %2.4. Conclusions: The chorda tympani can be clearly seen on axial and reformat images on HRCT. Preoperative evaluation of the chorda tympani nerve might help to plan the surgical approach and thus prevent iatrogenic injury during middle ear surgery.en_US
dc.identifier.doi10.18521/ktd.1580167
dc.identifier.endpage143en_US
dc.identifier.issn1309-3878
dc.identifier.issue2en_US
dc.identifier.startpage137en_US
dc.identifier.trdizinid1321027en_US
dc.identifier.urihttps://doi.org/10.18521/ktd.1580167
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/1321027
dc.identifier.urihttps://hdl.handle.net/20.500.12684/21658
dc.identifier.volume17en_US
dc.identifier.wosWOS:001520342200003en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakTR-Dizinen_US
dc.language.isoenen_US
dc.publisherDuzce Univ, Fac Medicineen_US
dc.relation.ispartofKonuralp Tip Dergisien_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.snmzKA_WOS_20250911
dc.subjectChorda Tympanien_US
dc.subjectHigh Resolution CTen_US
dc.subjectFacial Nerveen_US
dc.subjectPosterior Tympanotomyen_US
dc.subjectFacial Recessen_US
dc.subjectTemporal Boneen_US
dc.titleEvaluation of Variations of the Chorda Tympani Nerve from The Facial Nerve on Resolution CTen_US
dc.typeArticleen_US

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