The Measurement of Temporal Bone Including Retrolabyrinthine Portion in Meniere's Disease / 대한이비인후과학회지

ABSTRACT

BACKGROUND AND OBJECTIVES: AThe anatomical aspects of the multiple etiopathogenic factors in Meniere's disease such as narrowed vestibular aqueduct, hypoplasia of the perilabyrinthine portion, hypoplastic vestibular aqueduct, anteromedially displaced sigmoid sinus have been studied by other authors. The purpose of this study is to investigate and measure the temporal bone including the retrolabyrinthine portion, and evaluate hypoplasia of the retrolabyrinthine region, anteromedial displacement of sigmoid sinus in the affected ear of unilateral Meniere's disease. MATERIALS AND METHODS: The four parameters in both sides of temporal bone were measure in 30 patients with unilateral Meniere's disease and in the controls using the axial 3DFT CISS image of temporal MRI. RESULTS: The retrolabyrinthine bone development, which contains the vestibular aqueduct and endolymphatic sac, was significantly poorer in the affected ear with unilateral Meniere's disease. However, the anteromedial displacement of sigmoid sinus were not found in the affected ear with Meniere's disease. CONCLUSION: These results suggest that hypoplasia of the retrolabyrinthine region may have a role in the pathogenesis of Meniere's disease.