PURPOSE: Our purpose was to investigate the topographical relationship of the facial and vestibulocochlear nerves from the brain stem through the internal auditory canal. METHODS: We dissected 15 formalin-fixed cadaveric heads and performed MR examinations in 35 healthy subjects in order to examine the topographical relationship of the facial and vestibulocochlear nerves. The cadaveric dissections and the in vivo MR imaging findings were compared indirectly. RESULTS: The relationship between the facial and vestibulocochlear nerves showed some variation among individuals and according to the location of the nerves within the cisterns or canal. Near the brain stem, 53% of the vestibulocochlear nerves were partially segmented on MR images. The vestibulocochlear nerve was completely divided into separate nerves only in the most lateral portion of the canal, except in three cadaveric dissections, in which separation of the superior vestibular nerve was seen near the brain stem. The facial and cochlear nerves were of similar size on 36% of the MR images. The superior vestibular nerve was larger than the inferior vestibular nerve on 81% of the MR images. CONCLUSION: The appearance of the facial and vestibulocochlear nerves was variable but followed certain consistent patterns.
PURPOSE: Our purpose was to investigate the topographical relationship of the facial and vestibulocochlear nerves from the brain stem through the internal auditory canal. METHODS: We dissected 15 formalin-fixed cadaveric heads and performed MR examinations in 35 healthy subjects in order to examine the topographical relationship of the facial and vestibulocochlear nerves. The cadaveric dissections and the in vivo MR imaging findings were compared indirectly. RESULTS: The relationship between the facial and vestibulocochlear nerves showed some variation among individuals and according to the location of the nerves within the cisterns or canal. Near the brain stem, 53% of the vestibulocochlear nerves were partially segmented on MR images. The vestibulocochlear nerve was completely divided into separate nerves only in the most lateral portion of the canal, except in three cadaveric dissections, in which separation of the superior vestibular nerve was seen near the brain stem. The facial and cochlear nerves were of similar size on 36% of the MR images. The superior vestibular nerve was larger than the inferior vestibular nerve on 81% of the MR images. CONCLUSION: The appearance of the facial and vestibulocochlear nerves was variable but followed certain consistent patterns.
Authors: M M Mortazavi; B Latif; K Verma; N Adeeb; A Deep; C J Griessenauer; R S Tubbs; T Fukushima Journal: Childs Nerv Syst Date: 2013-12-10 Impact factor: 1.475
Authors: O Sildiroglu; H Cincik; G Sonmez; E Ozturk; H Mutlu; E Gocgeldi; A Tunca Keskin; C Basekim; E Kizilkaya Journal: Radiol Med Date: 2009-12-28 Impact factor: 3.469
Authors: Nagy N N Naguib; Constanze Hey; Mohamed S Shaaban; Amr M Elabd; Hebatallah H M Hassan; Tatjana Gruber-Rouh; Benjamin Kaltenbach; Marc Harth; Hanns Ackermann; Timo Stöver; Thomas J Vogl; Nour-Eldin A Nour-Eldin Journal: Br J Radiol Date: 2017-04-03 Impact factor: 3.039
Authors: Shaimaa Abdelsattar Mohammad; Tougan Taha Abdelaziz; Mohamed I Gadelhak; Hanan H Afifi; Ghada M H Abdel-Salam Journal: Neuroradiology Date: 2018-08-03 Impact factor: 2.804