Imaging analysis of enlarged vestibular aqueduct complicated with inner ear malformations
XING Qing-na1, ZHANG Xiao-an1, ZHAO Xin1, YAO Xiao-bin2
1.Department of Radiology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China;2.Clinical Laboratory, Henan Tumor Hospital, Zhengzhou 450008, China
Abstract：Objective: To investigate relationship between enlarged vestibular aqueduct(EVA) and inner ear malformations such as cochlear dysplasia, vestibulocochlear dysplasia and modiolus dysplasia. Methods: A retrospective analysis of 60 ears from 30 patients with EVA in the Third Affiliated Hospital of Zhengzhou University, between 2010 and 2012. MSCT and MRI were performed to assess the EVA inner ear abnormalities in patients with the other malformations. Result: The 60 ears were all suffering from EVA, bilateral EVA 26 cases, unilateral EVA 4 cases, 12 females and 18 males. The average age patients was 1.8 years(six month~4.2 years old). In 45(80.4%) ears with EVA also had one or more other inner ear abnormalities. Thirty ears(53.6%) associated with cochlear dysplasia, 9(16.1%) had vestibular dysplasia. Conclusion: According to small FOV, thin layer MSCT and magnetic resonance imaging of the inner ear, EVA is usually found to be comlicated inner ear malformations, particularly dysplasia of the cochlea.
2014, Vol. 25 
