McClenaghan Fiona, Nash Robert
The Royal National Throat Nose and Ear Hospital, GB.
Great Ormond Street Hospital for Children, GB.
J Belg Soc Radiol. 2020 Jul 3;104(1):37. doi: 10.5334/jbsr.2059.
Despite developments in electrophysiological testing, imaging remains the standard method to determine cochlear implant positioning. Whilst cone beam computed tomography is optimal, modified Stenver radiographs are easier to perform and are therefore commonly used. With recent debate as to the need for routine imaging in uncomplicated cases, the radiologist is increasingly faced with cases of abnormal anatomy or surgical error. The primary interest is the positioning of the electrode array within the cochlea. This includes evidence of tip roll over or kinking and depth of electrode insertion, as both are independent predictors of hearing outcomes and may necessitate revision surgery.
尽管电生理测试有所发展,但成像仍是确定人工耳蜗植入位置的标准方法。虽然锥形束计算机断层扫描是最佳选择,但改良的斯滕弗尔位X线片操作更简便,因此被广泛使用。随着近期对于非复杂病例是否需要常规成像的讨论,放射科医生越来越多地面对解剖结构异常或手术失误的病例。主要关注点是电极阵列在耳蜗内的位置。这包括电极尖端翻转或扭结的证据以及电极插入的深度,因为这两者都是听力结果的独立预测因素,可能需要进行翻修手术。