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KNOW HOW TO POSITION THE SACCULE AND UTRICULE IN SCANNING

NCT ID: NCT06179251

Last Updated: 2023-12-21

Study Results

Results pending

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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Recruitment Status

RECRUITING

Total Enrollment

40 participants

Study Classification

OBSERVATIONAL

Study Start Date

2021-12-13

Study Completion Date

2023-12-31

Brief Summary

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Titanium pistons cause MRI artifacts that prevent interpretation of the vestibule. This disadvantage is not present on CT but the vestibule is not visible. Hence the interest in creating a model with 6 reference cuts in order to position the utricle and the saccule in the vestibule in CT. Furthermore, the scanner has fewer contraindications, greater availability and a shorter examination time than MRI.

Detailed Description

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The aim of the study is to analyze six normal sections chosen as reference in histology, high resolution T2 MRI and CT in order to compare them with precise topographical landmarks to position the posterior membranous labyrinth in CT. Then, apply the investigators' observations to cases of operated otosclerosis.

Conditions

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Otosclerosis

Keywords

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Otosclerosis Vestibular dysfunction Membranous Labyrinth

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

RETROSPECTIVE

Eligibility Criteria

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Inclusion Criteria

* Adults (≥18 years old) and minors (≥ 6 years old)
* Subject having received an MRI of the internal ear canals from the HUS between 01/01/2018 and 01/01/2021 or a CT scan of the rocks between 07/01/2015 and 01/01/2021
* Normal MRI or CT on the side opposite the pathology.
* Normal tonal audiogram on the side opposite the pathology (peripheral facial paralysis assumed to be cold for MRI and petrous fracture for CT).
* Subject who has not expressed his opposition, after information, to the reuse of his data for the purposes of this research.
* Holders of authority who have not expressed their opposition, after information, to the reuse of their child's data for the purposes of this research

Exclusion Criteria

* Subject having expressed opposition to participating in the study
* Holders of parental authority who have expressed their opposition to the reuse of their child's data for the purposes of this research
* Imaging with artifacts
* Absence of pure-tone audiogram or its abnormality on the side of the ear studied
* Any malformation or pathology of the vestibule on imaging on the side of the ear studied
* Subjects under guardianship or curatorship
Minimum Eligible Age

6 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University Hospital, Strasbourg, France

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Service de Radiologie - CHU de Strasbourg - France

Strasbourg, , France

Site Status RECRUITING

Countries

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France

Central Contacts

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francis VEILLON, MD, PhD

Role: CONTACT

Phone: 33 3 88 12 78 65

Email: [email protected]

Floriane LE NORMAND, MD

Role: CONTACT

Phone: 33 3 88 12 78 65

Email: [email protected]

Facility Contacts

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Francis VEILLION, MD, PhD

Role: primary

Floriane LE NORMAND, MD

Role: backup

Other Identifiers

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8488

Identifier Type: -

Identifier Source: org_study_id