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KMID : 1195620150080040364
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Clinical and Experimental Otorhinolaryngology
2015 Volume.8 No. 4 p.364 ~ p.369
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Unidentified Bright Objects on Brain Magnetic Resonance Imaging Affect Vestibular Neuritis
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Lee Ho-Yun
Kim Ji-Chan
Chang Dong-Sik
Cho Chin-Saeng
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Abstract
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Objectives: The aim of this study was to investigate the differences in clinical manifestations of in two groups of vestibular neuritis (VN) patients with or without unidentified bright objects (UBOs).
Methods: A prospective, observational study with 46 patients diagnosed with VN between May 2013 and November 2013 was executed. A caloric test, a cervical vestibular-evoked myogenic potentials (cVEMPs) test, brain magnetic resonance imaging (MRI), spontaneous nystagmus test, head impulse test, and head-shaking nystagmus test were performed.
Results: Of the patients, 56.5% (n=26) were classified as UBO-positive by MRI. These showed lower caloric weakness and more prominent cVEMP asymmetry compared with the UBO-negative group (P<0.05). Total VN (TVN) was the most common in the UBO-positive group (45.0%), followed by superior VN (SVN, 30.0%), and inferior VN (IVN, 25.0%). However, in the UBO-negative group, SVN (75.0%) was the most common, followed by TVN and IVN (P<0.05). The recovery rate was not influenced by UBOs (P>0.05).
Conclusion: UBOs on T2-weighted or fluid attenuated inversion recovery MRI may affect the patterns of the vestibular nerve in patients with VN.
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KEYWORD
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Vestibular Neuronitis, Magnetic Resonance Imaging, Prognosis
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