Contralateral type of delayed endolymphatic hydrops may consist of two phenotypes based on a magnetic resonance imaging preliminary study

AbstractObjective:To establish a new magnetic resonance imaging scoring system for diagnosing endolymphatic hydrops.Patients and methods:A total of 214 ears of 107 patients were categorised into five groups: no symptoms, Ménière's disease, sudden deafness, delayed endolymphatic hydrops and other ear disorders. Gadolinium distribution within the labyrinth was scored separately and quantitatively by two radiologists. Multiple independent-sample non-parametric tests, Bayesian discriminant analysis, multivariate logistic regression and receiver operating characteristic curve analyses were performed.Results:The derived scoring model was highly accurate for diagnosing Ménière's disease and delayed endolymphatic hydrops. Two magnetic resonance imaging scoring methods for the perilymphatic space were proposed for the diagnosis of endolymphatic hydrops: a pre-1 value (a new variable that predicts individual probability) of more than 0.3982299, or a sum of all labyrinth component scores of less than 14.5.Conclusion:A convenient method is proposed which offers reliable radiological diagnostic criteria for Ménière's disease and delayed endolymphatic hydrops.

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Gadolinium-enhanced inner ear magnetic resonance imaging for evaluation of delayed endolymphatic hydrops, including a bilateral case

Acta Oto-Laryngologica ◽

10.3109/00016489.2015.1129554 ◽

2016 ◽

Vol 136 (5) ◽

pp. 451-455 ◽

Cited By ~ 8

Author(s):

Munehisa Fukushima ◽

Ryohei Oya ◽

Hitoshi Akazawa ◽

Yukinori Tsuruta ◽

Hidenori Inohara

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Inner Ear ◽

Endolymphatic Hydrops ◽

Resonance Imaging ◽

Delayed Endolymphatic Hydrops ◽

Bilateral Case

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Diagnostic value of three-dimensional magnetic resonance imaging of inner ear after intratympanic gadolinium injection, and clinical application of magnetic resonance imaging scoring system in patients with delayed endolymphatic hydrops

The Journal of Laryngology & Otology ◽

10.1017/s0022215113003289 ◽

2013 ◽

Vol 128 (1) ◽

pp. 53-59 ◽

Cited By ~ 6

Author(s):

X Gu ◽

Z-M Fang ◽

Y Liu ◽

S-L Lin ◽

B Han ◽

...

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Inner Ear ◽

Endolymphatic Hydrops ◽

Three Dimensional ◽

Resonance Imaging ◽

Positive Identification ◽

Delayed Endolymphatic Hydrops ◽

Intratympanic Injection ◽

Perilymphatic Space

AbstractObjective:Three-dimensional fluid-attenuated inversion recovery magnetic resonance imaging of the inner ear after intratympanic injection of gadolinium, together with magnetic resonance imaging scoring of the perilymphatic space, were used to investigate the positive identification rate of hydrops and determine the technique's diagnostic value for delayed endolymphatic hydrops.Methods:Twenty-five patients with delayed endolymphatic hydrops underwent pure tone audiometry, bithermal caloric testing, vestibular-evoked myogenic potential testing and three-dimensional magnetic resonance imaging of the inner ear after bilateral intratympanic injection of gadolinium. The perilymphatic space of the scanned images was analysed to investigate the positive identification rate of endolymphatic hydrops.Results:According to the magnetic resonance imaging scoring of the perilymphatic space and the diagnostic standard, 84 per cent of the patients examined had endolymphatic hydrops. In comparison, the positive identification rates for vestibular-evoked myogenic potential and bithermal caloric testing were 52 per cent and 72 per cent respectively.Conclusion:Three-dimensional magnetic resonance imaging after intratympanic injection of gadolinium is valuable in the diagnosis of delayed endolymphatic hydrops and its classification. The perilymphatic space scoring system improved the diagnostic accuracy of magnetic resonance imaging.

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