Role of Diagnostic Imaging in Cochlear Implant

Status Recruiting

Clinical Trial Summary

cochlear implant is a well accepted treatment to profound sensorineural hearing loss. Imaging provides essential information about anatomical Variants that could be riskyand should be considered by cochlear implant surgeon and the aim of the study:- - Identify inner ear congenital and acquired abnormalities. - Identify cochlear nerve anomalies. - Detect temporal bone abnormalities that require surgical modification by cochlear implant surgeon.

Clinical Trial Description

Cochlear implant (CI) is a well-accepted treatment for severe to profound sensorineural hearing loss. Patients who are refractory to conventional hearing augmentation . (CI) is a surgically implanted device consisting of external and internal components. An external microphone and speech processor worn behind the ear and convert sound into an electrical signal. A magnet held external transmitter sends the signal via electromagnetic induction through the skin to an internal receiver- stimulator which converts the signal into rapid electrical impulses which distributed to multiple electrodes on an electrode array implanted within the cochlea. The electrodes electrically stimulate the spiral ganglion cells along the cochlear turns, which then travel along the auditory nerve axons to the brain for sound perception . Imaging provides essential information about many of the anatomical variations that could be risky and should be considered by cochlear implant surgeon to avoid complications. Some variations are potential surgical hazards that may lead to problems during the surgery and may alert the surgeon regarding potential surgical dangers and complications . Both computed tomography (CT) and magnetic resonance imaging(MRI) are complementary to each other. They detect cochlear, middle ear anatomy and the anatomical variants . The strength of CT is visualization of the bony structures of the middle and inner ear and the strength of MRI is visualization of the fluid content of the membranous labyrinth, visualization of the vestibule-cochlear nerve in the fluid filled internal auditory canal and the cerebello-pontine angle . ;

Study Design

Related Conditions & MeSH terms

Cochlear Implant

Clinical Trial Details

NCT number	NCT04711538
Study type	Observational
Source	Sohag University
Contact	Marwa H Elhadad, AI
Phone	01122029281
Email	marwa.elhadad@med.sohag.edu.eg
Status	Recruiting
Phase
Start date	February 2021
Completion date	October 2022

View Details

See also
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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.