Journal of Shanghai Jiao Tong University (Medical Science) >

2023 , Vol. 43 >Issue 12: 1463 - 1469

DOI: https://doi.org/10.3969/j.issn.1674-8115.2023.12.001

Frontier review

Clinical values and advances in computed tomography evaluation after cochlear implantation

  • Wenxi GU ,
  • Huan JIA ,
  • Hao WU
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  • 1.Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
    2.Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai 200125, China
    3.Ear Institute, Shanghai Jiao Tong University School of Medicine, Shanghai 200125, China
WU Hao, E-mail: wuhao@shsmu.edu.cn.

Received date: 2023-08-30

  Accepted date: 2023-11-07

  Online published: 2024-02-01

Supported by

Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases(14DZ2260300);Translational Medicine Collaborative Innovation Project of Shanghai Jiao Tong University School of Medicine(TM202011);Project of Institute of Medical Robotics of Shanghai Jiao Tong University(IMR-NPH202001);Shanghai Key Clinical Specialty Construction Project(shslczdzk00802);Three-year Action Plan for Clinical Innovation of Shanghai Hospital Development Center(SHDC2020CR1044B)

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Abstract

Cochlear implantation has been a standard rehabilitation for children and adult patients with severe to profound sensorineural deafness. The intracochlear localization of the electrode array is one of the key factors related to the postoperative auditory and speech outcomes. Preservation of the residual hearing is related to the trauma to the inner ear structures caused in the insertion process. Optimal insertion depth and positioning of the electrode array is important for frequency discrimination. The post-operative position of the electrode array is evaluated by using plain X ray or computed tomography (CT). Compared to the plain X ray, CT produces three-dimensional (3D) imaging. With the application of post-operative CT evaluation, the integrity of the electrode array can be verified for surgical safety and improving programming accuracy. Different 3D reconstruction techniques and methods based on the post-operative CT imaging have been proposed to facilitate the precise recognition of position of each electrode, thus helpful to evaluate the possible insertion trauma to inner ear structures and the potential effect on auditory and speech outcomes. The post-operative CT evaluation has helped the electrode array design, brought progress to the soft surgery procedure and promoted new technologies such as robotic surgery and navigation. Therefore, it is getting more and more attention. This article reviews the clinical application values and the progress of techniques in post-operative CT evaluation of cochlear implantation.

Key words： cochlear implantation; computed tomography (CT); multiplanar reconstruction; 3D fusion reconstruction

Cite this article

Wenxi GU , Huan JIA , Hao WU . Clinical values and advances in computed tomography evaluation after cochlear implantation[J]. Journal of Shanghai Jiao Tong University (Medical Science), 2023 , 43(12) : 1463 -1469 . DOI: 10.3969/j.issn.1674-8115.2023.12.001

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