Cureus · 2025
Correlation Between Enhanced Magnetic Resonance Exam and Pure-Tone Audiometry Tests of Patients With Meniere's Disease.
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Pauna Henrique F, Echeverria Jéssica, Loh Eduarda B, Gasperin Alexandre C
Аннотация
INTRODUCTION: Meniere's disease (MD) is a disease affecting the inner ear that is attributed to endolymphatic hydrops. Several electrophysiological tests and imaging techniques have been developed to improve the diagnosis of endolymphatic hydrops.
OBJECTIVE: This study aimed to correlate inner ear magnetic resonance findings after intravenous gadolinium injection with the results of pure-tone audiometry tests for the diagnosis of MD.
METHODS: Patients meeting the criteria for a diagnosis of MD were retrospectively included from January 2016 to May 2021 at Hospital IPO (Instituto Paranaense de Otorrinolaringologia)/Paraná Institute of Otolaryngology, a private hospital in Paraná, Brazil. The endolymphatic hydrops was graded in four degrees on the gadolinium-enhanced magnetic resonance of the inner ear based on the inversion of the saccule to utricle ratio, as indicated by Reissner's membrane distension. Correlations were made with pure-tone audiogram, using Spearman's coefficient, Fisher's exact test, and non-parametric tests.
RESULTS: Fifty-three patients were evaluated (totaling 106 ears). The most common symptoms reported by patients were tinnitus (86.8%), dizziness (83%), hearing loss (81.1%), and ear fullness (64.2%). Vestibular endolymphatic hydrops was observed in 77.4% of the affected ears, while cochlear endolymphatic hydrops was present in 50.9%. Differences in hearing thresholds were found between affected ears and controls at all frequencies analyzed, with statistical significance.
CONCLUSIONS: Our study demonstrated that endolymphatic hydrops can be identified through magnetic resonance contrast-enhanced with gadolinium, showing that the same patient may have different degrees of dilatation of the membranous labyrinth between their two ears. We observed significant differences in pure-tone thresholds in audiometry tests according to the progression of the degree of endolymphatic hydrops.
OBJECTIVE: This study aimed to correlate inner ear magnetic resonance findings after intravenous gadolinium injection with the results of pure-tone audiometry tests for the diagnosis of MD.
METHODS: Patients meeting the criteria for a diagnosis of MD were retrospectively included from January 2016 to May 2021 at Hospital IPO (Instituto Paranaense de Otorrinolaringologia)/Paraná Institute of Otolaryngology, a private hospital in Paraná, Brazil. The endolymphatic hydrops was graded in four degrees on the gadolinium-enhanced magnetic resonance of the inner ear based on the inversion of the saccule to utricle ratio, as indicated by Reissner's membrane distension. Correlations were made with pure-tone audiogram, using Spearman's coefficient, Fisher's exact test, and non-parametric tests.
RESULTS: Fifty-three patients were evaluated (totaling 106 ears). The most common symptoms reported by patients were tinnitus (86.8%), dizziness (83%), hearing loss (81.1%), and ear fullness (64.2%). Vestibular endolymphatic hydrops was observed in 77.4% of the affected ears, while cochlear endolymphatic hydrops was present in 50.9%. Differences in hearing thresholds were found between affected ears and controls at all frequencies analyzed, with statistical significance.
CONCLUSIONS: Our study demonstrated that endolymphatic hydrops can be identified through magnetic resonance contrast-enhanced with gadolinium, showing that the same patient may have different degrees of dilatation of the membranous labyrinth between their two ears. We observed significant differences in pure-tone thresholds in audiometry tests according to the progression of the degree of endolymphatic hydrops.