目的分析伴前庭水管扩大(eva)的遗传性耳聋患者SLC26 A 4基因的突变特点，探讨该病行人工耳蜗植入时应注意的问题。
Objective to probe the problems that should be paid attention to in cochlea implantation for inherited deafness patients with EVA and to detect the SLC26A4 gene mutation underlying the disease.
CT能准确地显示前庭导水管扩大，对指导治疗有帮助。
Ct can accurately show the large vestibular aqueduct, and is helpful to its therapy.
目的评价横轴位高分辨率CT扫描对前庭导水管扩大畸形的诊断价值。
Objective To assess the value of axial high resolution computed tomography(HRCT)scans in the diagnosis of the large vestibular aqueduct malformation.
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