目的探讨磁共振内耳水成像在 人工耳蜗植入术中的应用价值。方法 筛 选2012年1月至2014年1月于我院进行人工 耳蜗植入术患者146例，作为研究对象。 于手术治疗前进行头颅内听道MRI及螺旋 CT检查，对所有影像学结果进行分析总 结及统计学处理，探讨MRI内耳水成像在 人工耳蜗植入术中的应用价值。结果 146 例患者中(行双侧检查共292耳)，其中MRI 检出前庭导水管异常13例(20耳)，CT检 出5例；MRI检出内耳畸形15例(19耳)， CT检出11例，漏诊4例；MRI检出内听道 狭窄5例(8耳)，CT检出2例，漏诊3例； MRI检出耳蜗纤维化4例(5耳)，CT检出4 例(4耳)；单纯依据CT检查诊断正确率为 77.40%(113/146)，单纯依据MRI检查诊断 正确率为93.84%(137/146)。结论 MRI水 成像技术可应用于人工耳蜗植入术前的影 像评价，可提供准确、可靠的内耳膜迷路 及内听道神经的解剖学信息，可对耳蜗纤 维化、神经发育等诊断提供准确依据，对 治疗方案的选择具有指导性意义。

Objective To explore the application value of magnetic resonance hydrography of inner ear imaging in cochlear implantation. Methods 146 patients underwent cochlear implantation in our hospital were selected from January 2012 to January 2014 as the research objects. Internal auditory canal MRI and CT were performed before the surgery. All the imaging data was analyzed and statistically summarized. The application value of magnetic resonance hydrography of inner ear imaging in cochlear implantation were explored. Results Of all the 146 cases(292 ears), 13 cases(20 ears) were detected with vestibular aqueduct abnormality by MRI and 5 cases by CT; 15 cases(19 ears) were detected with inner ear malformations by MRI and 11 cases by CT with 4 cases of missed diagnosis. 5cases (8 ears) were detected with internal auditory canal stenosis by MRI and 2 cases by CT with 3 cases of missed diagnosis. 4 cases(5 ears) were detected with cochlear fibrosis by MRI and 4 cases by CT. The diagnostic accuracy was 77.40% (113/146) simply based on CT scan, and the diagnostic accuracy was 93.84% (137/146) simply based on MRI. Conclusions Magnetic resonance hydrography techniques can be applied to the imaging evaluation of inner ear before cochlear implantation. It can provide accurate and reliable anatomical information of the membranous labyrinth and auditory canal nerve and accurate basis for the diagnosis of cochlear fibrosis and neural development, and it has guiding significance for the choosing of treatment scheme.