Evaluation of vascular variations at cerebellopontine angle by 3D T2WI magnetic-resonance imaging in patients with vertigo

BEYAZAL ÇELİKER F., Dursun E., ÇELİKER M., Durakoglugil T., BEYAZAL M., İNECİKLİ M. F., ...More

Journal of Vestibular Research: Equilibrium and Orientation, vol.27, no.2-3, pp.147-153, 2017 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 27 Issue: 2-3
  • Publication Date: 2017
  • Doi Number: 10.3233/ves-170616
  • Journal Name: Journal of Vestibular Research: Equilibrium and Orientation
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.147-153
  • Keywords: Vascular loop, cerebellopontine angle, internal acoustic canal, vertigo, magnetic resonance imaging, INFERIOR CEREBELLAR ARTERY, MICROVASCULAR DECOMPRESSION, COCHLEOVESTIBULAR NERVE, VESTIBULOCOCHLEAR NERVE, MICROSURGICAL ANATOMY, COMPRESSION SYNDROME, SYMPTOMS, CLASSIFICATION, MRI
  • Lokman Hekim University Affiliated: No

Abstract

© 2017 - IOS Press and the authors. All rights reserved.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.