| Item type |
itemtype_ver1(1) |
| 公開日 |
2022-01-12 |
| タイトル |
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|
タイトル |
Dilatation of the Endolymphatic Space in the Ampulla of the Posterior Semicircular Canal: A New Clinical Finding Detected on Magnetic Resonance Imaging |
|
言語 |
en |
| 著者 |
Morioka, Masaru
Sugimoto, Satofumi
Yoshida, Tadao
Teranishi, Masaaki
Kobayashi, Masumi
Nishio, Naoki
Katayama, Naomi
Naganawa, Shinji
Sone, Michihiko
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| アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利 |
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|
言語 |
en |
|
権利情報 |
"This is a non-final version of an article published in final form in (Morioka, Masaru; Sugimoto, Satofumi; Yoshida, Tadao; Teranishi, Masaaki; Kobayashi, Masumi; Nishio, Naoki; Katayama, Naomi; Naganawa, Shinji; Sone, Michihiko Dilatation of the Endolymphatic Space in the Ampulla of the Posterior Semicircular Canal: A New Clinical Finding Detected on Magnetic Resonance Imaging, Otology & Neurotology: July 2021 - Volume 42 - Issue 6 - p e643-e647 doi: 10.1097/MAO.0000000000003073)." |
| 内容記述 |
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内容記述タイプ |
Abstract |
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内容記述 |
Objectives: To investigate the clinical features of ears with dilatation of the endolymphatic space in the ampulla of the posterior semicircular canal on magnetic resonance imaging. Study Design: Retrospective study. Setting: A university hospital. Methods: This study included 1,842 ears from 934 patients who underwent 3-T magnetic resonance imaging with gadolinium to investigate the presence of endolymphatic hydrops. Age, sex distribution, hearing thresholds on pure-tone audiometry, and vestibular symptoms were compared between cases of unilateral and bilateral dilatation of the endolymphatic space in the ampulla of the posterior semicircular canal. Results: Forty-eight ears (17 men and 14 women; mean age 49.9 yrs) showed dilatation of the endolymphatic space in the ampulla of the posterior semicircular canal. Age and the rate of chronic sensorineural hearing loss were significantly higher in the unilateral group (14 ears) than in the bilateral group (34 ears). The average hearing thresholds and rates of vestibular symptoms reported did not differ between unilateral and bilateral cases, but some patients showed positional nystagmus. Conclusions: Dilatation of the endolymphatic space in the ampulla was observed selectively in the posterior semicircular canal, though its pathogenesis was not clear. Such dilatation is not usually accompanied by vestibular endolymphatic hydrops, and it may be a cause of vertigo and dizziness. |
|
言語 |
en |
| 出版者 |
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|
出版者 |
Wolters Kluwer Health |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
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|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版タイプ |
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|
出版タイプ |
AM |
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出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 関連情報 |
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|
関連タイプ |
isVersionOf |
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|
識別子タイプ |
DOI |
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|
関連識別子 |
https://doi.org/10.1097/MAO.0000000000003073 |
| 収録物識別子 |
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収録物識別子タイプ |
EISSN |
|
収録物識別子 |
1531-7129 |
| 書誌情報 |
en : Otology & Neurotology
巻 42,
号 6,
p. e643-e647,
発行日 2021-07
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| ファイル公開日 |
|
|
日付 |
2022-07-01 |
|
日付タイプ |
Available |
Morioka_Otol_Neurotol_2021.pdf (424 KB)
