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Article type: Research Article
Authors: Beyazal Celiker, Fatmaa; * | Dursun, Enginb | Celiker, Metinc | Durakoglugil, Tugbaa | Beyazal, Mehmeta | Inecikli, Mehmet Fatiha | Ozgur, Abdulkadirb | Terzi, Suatb
Affiliations: [a] Department of Radiology, Recep Tayyip Erdoğan University Faculty of Medicine, Rize, Turkey | [b] Department of Otorhinolaryngology, Recep Tayyip Erdoğan University Rize Training and Research Hospital, Rize, Turkey | [c] Department of Otorhinolaryngology, Recep Tayyip Erdoğan University Faculty of Medicine, Rize, Turkey
Correspondence: [*] Corresponding author: Fatma Beyazal Çeliker, Recep Tayyip Erdoğan Üniversitesi Eğitim Araştirma Hastanesi, Radyoloji Anabilim Dalı, Islampaşa Mahallesi, Şehitler Caddesi, No:74, 53020 Rize, Turkey. Tel.: +90 5055624891; Fax: +90 4642234163; E-mail: [email protected].
Abstract: BACKGROUND: Vascular loops of the anterior-inferior cerebellar artery (AICA) at the cerebellopontine angle (CPA) are considered related to auditory-vestibular symptoms. Clinical association of these anatomical aberrations, which can be grouped together as vascular compression syndromes, is controversial. Magnetic resonance imaging (MRI) is widely used to visualize this anatomical region, given its high sensitivity and specificity. OBJECTIVE: To elucidate the clinical relationship of vertigo symptoms with vascular loop compression syndrome by evaluating the neurovascular contacts of the vestibulocochlear nerve (VCN) and AICA at the CPA and internal auditory canal via high-resolution MRI. METHODS: The study included 417 patients (178 with vertigo and 239 without vertigo) undergoing MRI for various clinical causes. MRI scans were assessed to study the presence of vascular abnormalities at the CPA. RESULTS: According to our findings, type 1 vascular variation was observed most frequently in both sides. MRI findings were similar for the patients with and without vertigo. CONCLUSIONS: Identifying the prevalence of the vascular loops of the AICA primarily depends on diagnostic technique, and our results identified a slightly higher prevalence than those of previous studies, which might be partly related to the high-sensitivity of 3-dimensional T2-weighted MRI.
Keywords: Vascular loop, cerebellopontine angle, internal acoustic canal, vertigo, magnetic resonance imaging
DOI: 10.3233/VES-170616
Journal: Journal of Vestibular Research, vol. 27, no. 2-3, pp. 147-153, 2017
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