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目的 通过螺旋ＣＴ三维重建技术观察梅尼埃病患者前庭小管外口，研究其宽度的大小与该病发生的内在联系。方法 分别观察比较梅尼埃病患者和正常受试者。对颞骨岩部范围进行容积扫描，采用后颅窝内面观、表面法进行三维重建。在三维方向上旋转切割后图像，直接测量前庭小管外口最大直径。结果 所有受试者三维图像上前庭小管外口均显示清晰，梅尼埃病患者前庭小管外口宽度与正常耳组间的差异具有非常显著性意义。单侧梅尼埃病患者病耳与非病耳前庭小管外口宽度的差异无显著性意义。结论 前庭小管发育不良为梅尼埃病的病理解剖学基础，并且常常累及双耳。
Objective To observe the external vestibular canal of Meniere’s disease by three-dimensional reconstruction of spiral CT and study the relationship between its width and the occurrence of the disease. Methods Were observed and compared Meniere’s disease patients and normal subjects. The volume of the petrous bone area was scanned by volume, and the three-dimensional reconstruction of the posterior fossa was performed with the internal view and the surface method. Rotate the cut image in three dimensions to directly measure the maximum diameter of the vestibular canal. Results All subjects showed clear appearance of the vestibular canal outside the three-dimensional image, and the difference between the width of the vestibular canal outside the mouth of the vestibular canal in Meniere’s disease and that of the normal ear was very significant. There was no significant difference in the width of the external orifice of the unilateral diseased ear and the non-diseased ear vestibular canal in patients with unilateral Meniere’s disease. Conclusions Vestibular tubule dysplasia is the pathological anatomy of Meniere’s disease and often involves both ears.