Evaluation of the vascular contacts of the facial nerve on three-dimensional fast imaging employing steady-state acquisition MRI in Bell's palsy

Year 2017, Volume: 7 Issue: 2, 87 - 93, 30.09.2017

Ebru Ozan Hande Arslan Refah Sayın

Abstract

Objective: The purpose of this study was to
demonstrate the vascular contact patterns of the facial nerve (FN) on
three-dimensional fast imaging employing steady-state acquisition
(3D-FIESTA) magnetic resonance imaging (MRI) and evaluate the
correlation between these patterns, House-Brackmann (HB) grades and
outcomes in Bell's palsy (BP).




Methods:
Fifty-two patients with BP and 25 healthy controls were included in the
study. Besides, a third group was formed by the asymptomatic sides of 52
patients. The vascular contact patterns of the FN on 3D-FIESTA MRI were
classified with regard to the presence, number and anatomic location of
the contact.




Results: A
significant difference was found between the groups in terms of vascular
contact patterns of the FN (p<0.001). Multiple vascular contacts
were more prominent in the symptomatic sides of the patients. There was a
positive statistical correlation between vascular contact patterns and
HB grades at presentation and at the 3rd week and 3rd month follow-ups
(r=0.335; p=0.015, r=0.587; p<0.001 and r=0.493; p<0.001).




Conclusion:
Multiple vascular contacts of the FN on 3D-FIESTA MRI were found to be
more common and associated with poor recovery in BP. Thus, 3D-FIESTA MRI
may provide prognostic information in BP.

Keywords

3D-FIESTA MRI, Bell's palsy, facial nerve, vascular contacts, 3D-FIESTA MRG, Bell felci, vasküler bası, yüz siniri

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