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The aim of this study is to compare the thickness of the stapes footplate measured with ultra high resolution CT in control patients, otosclerosis patients and chronic otitis media patients.
Stapes footplate thickness will be measured under its anterior crus, its posterior crus and at its midpoint, in both the stapes axial plane and the laletral semi-circular canal planes.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| otosclerosis | otosclerosis patients |
| |
| chronic otitis media | otitis media with middle ear opacities |
| |
| controls | sudden ear loss, pre-implantatory imaging, vertigo, tympanic perforation |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| ultra-high resolution CT | Diagnostic Test | stapes footplate thickness measurement |
|
| Measure | Description | Time Frame |
|---|---|---|
| stapes footplate thickness in mm in the stapes axial plane | stapes footplate thickness measured with a digital caliper on our PACS system with the accuracy of a tenth of a millimetre, under the anterior crus of the stapes, under the posterior crus of the stapes, and at its midpoint, in the stapes axial plane and in the lateral semi circular canal plane, to compare both values and find out wich one is the most pertinent | october 2020-october 2022 |
| Measure | Description | Time Frame |
|---|---|---|
| interobserver variability | interobserver variability | october 2020-october 2022 |
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Inclusion Criteria:
Exclusion Criteria:
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patients refered to our department between october 2020 and October 2022 for an ultra high resolution CT of the temporal bone
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| romain gillet, MD | Contact | 003383851811 | r.gillet@chru-nancy.fr |
| Name | Affiliation | Role |
|---|---|---|
| romain gillet, MD | CHRU de Nancy | Principal Investigator |
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| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 32700991 | Background | Akazawa Y, Ganaha A, Higa T, Kondo S, Oyakawa Y, Hirakawa H, Suzuki M, Yamashiro T. Measurement of stapes footplate thickness in otosclerosis by ultra-high-resolution computed tomography. Acta Otolaryngol. 2020 Nov;140(11):899-903. doi: 10.1080/00016489.2020.1788225. Epub 2020 Jul 23. | |
| 34058698 | Background |
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| ID | Term |
|---|---|
| D010040 | Otosclerosis |
| D010033 | Otitis Media |
| ID | Term |
|---|---|
| D004427 | Ear Diseases |
| D010038 | Otorhinolaryngologic Diseases |
| D010031 | Otitis |
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| Tang R, Yin H, Wang Z, Zhang Z, Zhao L, Zhang P, Li J, Zhao P, Lv H, Zhang L, Yang Z, Wang Z. Stapes visualization by ultra-high resolution CT in cadaveric heads: A preliminary study. Eur J Radiol. 2021 Aug;141:109786. doi: 10.1016/j.ejrad.2021.109786. Epub 2021 May 21. |