الفهرس 
DedicationOnly 14 pages are availabe for public view
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Abstract
Objective measures are a widely used and valuable tool in the field of cochlear implants (CIs). During surgery they provide first indications of successful implantation and after surgery they are used to facilitate the individual fitting of stimulation parameters. One objective measure of the auditory nerve’s response to stimulation is the Electrically Evoked Compound Action Potential (ECAP). This response is particularly advantageous because it allows the clinician to directly measure auditory nerve fibre potentials on implanted patients. In analyzing the physiological response to the electrical stimulation transmitted by the implant, information can be obtained regarding the expected and actual function of the peripheral nerve. This information can be used intraoperatively to adjust the placement of the intracochlear electrode and for technical functional testing .
postimplantation CT scan is a very useful tool in high resolution imaging in pediatric patients with CI enabling detection of the individual electrode position inside the cochlea and measuring the electrode- modiolus distance .
There is a significant positive correlation between the electrode position( EMD) and ART(ECAP threshold)