Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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UNKNOWN
80 participants
OBSERVATIONAL
2021-02-28
2022-10-31
Brief Summary
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* Identify inner ear congenital and acquired abnormalities.
* Identify cochlear nerve anomalies.
* Detect temporal bone abnormalities that require surgical modification by cochlear implant surgeon.
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Detailed Description
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(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 .
Conditions
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Study Design
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COHORT
PROSPECTIVE
Interventions
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MRI
imaging inner ear and petrous bone of the candidate by MRI and CT
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* Gender, both genders will be included.
* Patient full filled criteria for CI including audiological \& phoniatric criteria
Exclusion Criteria
ALL
No
Sponsors
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Sohag University
OTHER
Responsible Party
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Marwa Helmy Abdel Hamid Elhadad
doctor
Principal Investigators
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Mohammed H Alam-Eldeen, AP
Role: STUDY_DIRECTOR
Sohag University
Ramadan H Hashem, Prof
Role: STUDY_CHAIR
Sohag University
Locations
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Sohag University
Sohag, Sohag Governorate, Egypt
Countries
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Central Contacts
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Facility Contacts
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Ramadan H Sayed, Prof
Role: backup
References
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Alam-Eldeen MH, Rashad UM, Ali AHA. Radiological requirements for surgical planning in cochlear implant candidates. Indian J Radiol Imaging. 2017 Jul-Sep;27(3):274-281. doi: 10.4103/ijri.IJRI_55_17.
Joshi VM, Navlekar SK, Kishore GR, Reddy KJ, Kumar EC. CT and MR imaging of the inner ear and brain in children with congenital sensorineural hearing loss. Radiographics. 2012 May-Jun;32(3):683-98. doi: 10.1148/rg.323115073.
Marsot-Dupuch K, Meyer B. Cochlear implant assessment: imaging issues. Eur J Radiol. 2001 Nov;40(2):119-32. doi: 10.1016/s0720-048x(01)00380-1.
Other Identifiers
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Soh-Med-21-01-05
Identifier Type: -
Identifier Source: org_study_id
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