Maryam Mohammadzadeh, Department of Radiology, Division of Neuroradiology, Tehran University of Medical Sciences, Tehran, Iran
Reza Erfanian, Otorhinolaryngology Research Center, Tehran University of Medical Sciences, Tehran, Iran
Saman Rezaeian, Otorhinolaryngology Research Center, Tehran University of Medical Sciences, Tehran, Iran
Nasim Batavani, Department of Radiology, Division of Neuroradiology, Tehran University of Medical Sciences, Tehran, Iran
Behrooz Amirzargar, Otorhinolaryngology Research Center, Tehran University of Medical Sciences, Tehran, IranFollow

Background: Differentiating jugular foramen from hypoglossal canal in computed tomography (CT) scan is vital for correct diagnosis of posterior fossa pathologies; however, it has been shown that the ability for differentiating these skull base elements is limited. The purpose of this study was to produce a simple algorithm for differentiating the jugular foramen from the hypoglossal canal in axial CT scan on two levels (top level where bony carotid canal is evident and lower level where bony carotid canal is not evident). Methods: Data derived from axial CT scan of 250 patients (500 sides) were used for producing algorithm. At top level petro-occipital fissure utilized for recognizing occipital condyle in which hypoglossal canal is located; and, at lower level the distance between the posterior border of the anatomic element (jugular foramen or hypoglossal canal) and the tangent to the anterior bony part is used for producing algorithm. Results: The mean age of patients was 38.1 ± 19 years. The petro-occipital fissure can be used in all patients for differentiating hypoglossal canal. At lower level the distance between the anterior tangent and the posterior border of the element was significantly lower for hypoglossal canal (P value

Mohammadzadeh, Maryam; Erfanian, Reza; Rezaeian, Saman; Batavani, Nasim; and Amirzargar, Behrooz (2022) "Jugular Foramen versus Hypoglossal Canal in Axial CT scan," BioMedicine: Vol. 13 : Iss. 1 , Article 6.
DOI: 10.37796/2211-8039.1393

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