Gstoettner W, Hamzavi J, Czerny C
Universitätsklinik für Hals-Nasen-Ohrenheilkunde, Wien.
Radiologe. 1997 Dec;37(12):991-4. doi: 10.1007/s001170050312.
In the last decade, the rehabilitation of postlingually deaf adults and prelingually deaf children with cochlear implants has been established as a treatment of deafness. The technological development of the implant devices and improvement of the surgical technique have led to a considerable increase of hearing performance during the last years. The postlingually deaf adults are able to use the telephone and may be integrated in their original job. Prelingually deaf children can even visit normal schools after cochlear implantation and hearing rehabilitation training. In order to preoperatively establish the state of the cochlea, radiological diagnosis of the temporal bone is necessary. High resolution computerized tomography imaging of the temporal bone with coronar and axial 1 mm slices and MRI with thin slice technique (three dimensional, T2 weighted turbo-spinecho sequence with 0.7 mm slices) have proved to be valuable according to our experience. Furthermore a postoperative synoptical X-ray, in a modified Chausse III projection, offers good information about the position of the implant and insertion of the stimulating electrode into the cochlea.
在过去十年中，为语后聋成人和语前聋儿童植入人工耳蜗已成为一种治疗耳聋的方法。在过去几年里，植入设备的技术发展和手术技术的改进使听力表现有了显著提高。语后聋成人能够使用电话，并有可能重返原来的工作岗位。语前聋儿童在植入人工耳蜗并接受听力康复训练后甚至可以进入普通学校就读。为了在术前确定耳蜗的状况，颞骨的放射学诊断是必要的。根据我们的经验，颞骨的高分辨率计算机断层扫描成像（冠状位和轴位1毫米层厚）以及采用薄层技术的MRI（三维，0.7毫米层厚的T2加权快速自旋回波序列）已被证明很有价值。此外，术后采用改良的Chausse III投照的综合X线片能提供有关植入物位置以及刺激电极插入耳蜗情况的良好信息。
