The vidian canal: radiological features in Japanese population and clinical implications

Neurologia Medico-chirurgica
David MatoNaokatsu Saeki

Abstract

The vidian canal (VC), a bony tunnel in which the vidian artery and nerve pass, has been widely known as an important landmark to identify the anterior genu of the petrous carotid artery (AGPCA) especially during lateral extended endoscopic endonasal approachs (LEEEAs). The objectives of this study in the Japanese population are to describe the radiological anatomic features and relationships between VC and its surrounding structures, and discuss the clinical implications. We studied 231 high-resolution computed tomography (CT) scans with a slice thickness of 0.5 mm. All the patients had known sellar or parasellar pathologies but without any involvement of VC. The following VC-related parameters were examined: its length, relationship to AGPCA, course from the pterygopalatine fossa to the carotid canal, its position relative to the medial pterygoid plate and pneumatization pattern of the sphenoid sinus. Mean length of VC is 14.6 mm. There is more tendency of straight-running VC compared to other populations. VC locates infero-lateral to AGPCA in all the cases. The protrusion of VC and the paraclival carotid artery to the sphenoid sinus, as well as well-pneumatization of the sinus is also observed more frequently in almost a hal...Continue Reading

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Citations

Sep 16, 2018·Surgical and Radiologic Anatomy : SRA·Satoshi TsutsumiYukimasa Yasumoto
Feb 13, 2019·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·İlhan BahşiEda Didem Yalçın
Jan 4, 2020·Surgical and Radiologic Anatomy : SRA·Daniele GibelliChiarella Sforza
Jan 18, 2020·Surgical and Radiologic Anatomy : SRA·Georgia PapavasileiouKaterina Vassiou

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