Learning objectives
Review the relevant normal anatomy and development of the inner ear
Display imaging appearances and classification of the inner ear malformations
Explain preoperative evaluation of the cochlear implantation candidates step by step with some practical points
Background
Newborn hearing screening tests that designed to identify hearing loss in infants shortly after birth and known benefits of treating sensorineural hearing loss as early as possible have increased demand for cochlear implantation.
Imaging is one of the most important steps in the preoperative evaluation of cochlear implantation.
Radiologist should familiar with both the congenital malformations of the inner ear and the conditions that may preclude or complicate cochlear implantation.
We aim to review the relevant normal anatomy and development of the inner ear and...
Findings and procedure details
Imaging techniques:
• High resolution computed tomography (CT) and magnetic resonance (MR) imaging are both necessary modalities that complement each other to evaluate the patients with sensorineural hearing loss.
• CT is used for visualize the osseous structure and classify the inner ear malformation.
Also,
preoperative CT examination is a good guide for surgeon that allows the additional information about middle ear and mastoid aeration,
the course of fascial nerve and anatomic variations.
• CT of the temporal bone should be obtained in coronal and...
Conclusion
Evaluation CT and MR imaging of the temporal bone prior to cochlear implantation is an important issue in every step including the classification of the inner ear malformation,
detection of associated abnormalities and guiding in the decision of the best surgical approach.
If we ask ourselves these questions and answer all of them in our structured report,
evaluating would be complete and easy.
Personal information
Asli Irmak Biranci,
MD
Tepecik Training and Research Hospital,
Department of Radiology,Izmir,
Turkey
Yeliz Pekcevik,
MD,Associate Professor
Tepecik Training and Research Hospital,
Department of Radiology, Izmir,
Turkey
Hilal Sahin,
MD
Tepecik Training and Research Hospital,
Department of Radiology,Izmir,
Turkey
Ilker Burak Arslan,
MD,Associate Professor
Tepecik Training and Research Hospital,
Department ofOtolaryngology-Head and Neck Surgery,
Izmir,
Turkey
Ibrahim Cukurova,
MD,Associate Professor
Tepecik Training and Research Hospital,
Department ofOtolaryngology-Head and Neck Surgery,
Izmir,
Turkey
Gul Caner Mercan,
MD,Associate Professor
Tepecik Training and Research Hospital,
Department ofOtolaryngology-Head and...
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