耳蜗植入术后X线摄影位置的探讨

目的:为评价耳蜗植入术后电极的形态、所处的空间位置和插入耳蜗的深度,设计符合临床诊断要求的最佳X线摄影方法。方法:随机选取20例人工耳蜗植入术后患儿,分别拍摄耳蜗正、侧位CR片,经测量、分析及临床选择,最终确定耳蜗正、侧位片摄影位置及角度。结果:20例图像均能显示耳蜗内植入的电极,其中2例显示电极略有重合,位置及角度欠佳,其余18例均能清晰显示电极数目及排列顺序。结论:耳蜗正、侧位可充分满足耳蜗植入术后检查的临床需要,而且具有摆位简单、快速和经济、辐射剂量小等优点,为临床术后评估手术质量的重要标准。

A Study on X-ray Photography Positions after Cochlear Implantation Operation

Objective：The aim of this study was to establish an optimal X-ray photography technique for the assessment of the postoperative electrode appearance,position and insertion depth of the cochlear implant.Methods： 20 children patients were randomly selected after cochlear implant to take normotopia and lateral position CR films.Then definite the position and angle of the cochlear photograph after measurement,analysis and clinical choice.Results： Images of 20 patients can demonstrate the cochlear implant electrodes.Two cases showed a slight coincidence of the cochlear implant electrodes,the poor location and angle.And the remaining 18 cases clearly showed the number and order of electrodes.Conclusion： The normotopia and lateral positions of CR films can satisfy the clinical needs after cochlear implant and have the advantages of positioning simple,fast economical,and small radiation doses.It is a major criterion for clinical evaluation after surgery.