MRI assesment of internal acoustic canal variations using 3D-FIESTA sequences

Erdogan N., Altay C., Akay E., Karakas L., Uluc E., Mete B., ...Daha Fazla

EUROPEAN ARCHIVES OF OTO-RHINO-LARYNGOLOGY, cilt.270, sa.2, ss.469-475, 2013 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 270 Sayı: 2
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1007/s00405-012-1994-7
  • Dergi Adı: EUROPEAN ARCHIVES OF OTO-RHINO-LARYNGOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.469-475
  • Anahtar Kelimeler: MRI, Internal auditory canal, Facial nerve, Vestibulocochlear nerve, Vertigo, Deafness
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

Magnetic resonance imaging (MRI) of the internal acoustic canal is the standard diagnostic tool for a wide range of indications in patients. This study aims to investigate the vascular variations and compression of the cranial nerves (CNs) VII and VIII at the cerebellopontine angle in patients with neuro-otologic symptoms using 3D-fast imaging employing steady-state acquisition (FIESTA) MR imaging. One hundred and eighty-seven patients (374 temporal bones) were examined on a 1.5-T MRI. In addition to conventional MR sequences, a 3D-FIESTA MR imaging was acquired. Magnetic resonance images thus obtained were evaluated with special regard to the presence of vascular contact to the CNs VII and VIII, as well as the presence of the vascular variations of the anterior inferior cerebellar artery (AICA) causing the compression of CNs. The Chi-squared test was used for statistical analysis. No statistically significant differences were found between the presence and absence of the AICA loop and/or vascular contact for the clinical symptoms of patients (P > 0.05). The cisternal and canalicular segments of CNs VII and VIII and adjacent vascular variations are well identified using 3D-FIESTA, especially by determining the relationship of the AICA variations between CNs.