MRI内耳水成像在人工耳蜗植入术前影像学评估中的应用

目的：探讨磁共振内耳水戍像在人工耳蜗植入术前影像学评估中的应用价值。方法：对50例听觉障碍患者。在拟行人工耳蜗植入前进行内耳与内耳道的MRI水成像检查．并将原始图像传送至工作站．分别用多平面重组影像（MPR）、最大信号强度投影（MIP）和立体透视技术（VRT）3种方法进行三维重建。结果：所有患者顺利完成检查，50例中，耳蜗与蜗神经显示正常45例，耳蜗异常1例，半规管异常2例，蜗神经变细或不显示2例。结论：磁共振内耳水成像能清晰显示内耳膜迷路与前庭蜗神经的解剖形态和发育状况。作为术前影像学评价的一种重要手段，能够为人工耳蜗植入的成功实施提供重要的信息。

Application of MRI in Observing Inner Ear Fluid to Preoperative Imaging Evaluation for Cochlear Implantation

Objective To study the effect of MRI in observing the inner ear fluid to the preoperative imaging evaluation for cochlear implantation. Methods Fifty patients with deafness anderwent the cochlea and cochlear nerve examination with MRI before cochlear implantation. All original images were delivered to workstations and MPR, MIP and VRT were used for their three-dimensional reconstruction. Results All patients successfully completed examination, and the cochlea and cochlear nerves of 45 patients were in good status, and cochlear malformation was found in 1 patient, and semicircular canal malformation was detected in 1 patient, and 2 patients were accompanied with cochlear nerve malformation. Conclusion Magnetic resonance imaging of the inner ear fluid water shows the anatomy and development status of the inner ear membranous labyrinth and cochlear nerve, which can provide information for cochlear implantation.