期刊
EUROPEAN RADIOLOGY
卷 32, 期 5, 页码 3553-3564出版社
SPRINGER
DOI: 10.1007/s00330-021-08430-7
关键词
Meniere's disease; Endolymphatic hydrops; Magnetic resonance imaging; Endolymphatic sac
资金
- National Natural Science Foundation of China [81670930]
- Natural Science Foundation of Hubei Province, China [2016CFB645]
- Fundamental Research Funds for the Central Universities, China [2016YXMS240]
This study found that anatomical variations of the inner ear may be a predisposing factor in the pathogenesis of unilateral Meniere's disease (MD), but have less impact on ipsilateral delayed endolymphatic hydrops (DEH).
Objective Radiological anatomical variations, measured by magnetic resonance imaging (MRI), were evaluated in patients with ipsilateral delayed endolymphatic hydrops (DEH) and unilateral Meniere's disease (MD). The role of anatomical variations in different subtypes of hydropic ear disease was investigated. Methods Twenty-eight patients with ipsilateral DEH, 76 patients with unilateral MD, and 59 control subjects were enrolled. The radiological indices included the distance between the vertical part of the posterior semicircular canal and the posterior fossa (MRI-PP distance) and the visibility of vestibular aqueduct (MRI-VA). These variations among patients with DEH, MD, and control subjects were compared. The correlation between radiological anatomical variations and clinical features or audio-vestibular findings was also examined. Results (1) MRI-PP distance in the affected side of unilateral MD was shorter than that in ipsilateral DEH (Z = - 2.481, p = 0.013) and control subjects (Z = - 2.983, p = 0.003), while the difference of MRI-PP distance between the affected side of ipsilateral DEH and control subjects was not statistically significant (Z = - 0.859, p = 0.391). (2) There was no significant interaural difference of MRI-PP distance in patients with unilateral MD (Z = - 0.041, p = 0.968) and ipsilateral DEH (t = - 0.107, p = 0.915) respectively. (3) No significant interaural difference of MRI-VA visibility was observed in patients with unilateral MD (chi(2) = 0.742, p = 0.389) and ipsilateral DEH (chi(2) = 0.327, p = 0.567) respectively. (4) No correlation was found between these anatomical variables and clinical features or audio-vestibular findings in patients with unilateral MD and ipsilateral DEH respectively (p > 0.05). Conclusions Anatomical variations of inner ear may be a predisposing factor in the pathogenesis of unilateral MD rather than ipsilateral DEH.
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