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High Signal Intensity of the Cochlear Modiolus on Unenhanced T1-Weighted Images in Classical Infratentorial Superficial Siderosis
https://repository.lib.tottori-u.ac.jp/records/4658
https://repository.lib.tottori-u.ac.jp/records/4658613f9dc9-8d19-48a5-82e7-8667cd592c42
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
yam65(4)_270.pdf (2.5 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2023-01-18 | |||||
| タイトル | ||||||
| タイトル | High Signal Intensity of the Cochlear Modiolus on Unenhanced T1-Weighted Images in Classical Infratentorial Superficial Siderosis | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題 | cochlear modiolus | |||||
| キーワード | ||||||
| 主題 | magnetic resonance imaging | |||||
| キーワード | ||||||
| 主題 | superficial siderosis | |||||
| キーワード | ||||||
| 主題 | T1-shortening | |||||
| キーワード | ||||||
| 主題 | SPGR | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題 | cochlear modiolus | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題 | magnetic resonance imaging | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題 | superficial siderosis | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題 | T1-shortening | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題 | SPGR | |||||
| 資源タイプ | ||||||
| 資源タイプ | journal article | |||||
| 著者 |
松末, 英司
× 松末, 英司× 井上, 千恵× 谷野, 朋彦× 藤井, 進也× Inoue, Chie× Matsumoto, Kensuke× Nakamura, Kazuhiko |
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| 著者所属（英） | ||||||
| 言語 | en | |||||
| 値 | Department of Radiology, Tottori Prefectural Central Hospital | |||||
| 著者所属（英） | ||||||
| 言語 | en | |||||
| 値 | Department of Radiology, Tottori Prefectural Central Hospital | |||||
| 著者所属（英） | ||||||
| 言語 | en | |||||
| 値 | Department of Radiology, Tottori Prefectural Central Hospital | |||||
| 著者所属（英） | ||||||
| 言語 | en | |||||
| 値 | Department of Radiology, Tottori Prefectural Central Hospital | |||||
| 著者所属（英） | ||||||
| 言語 | en | |||||
| 値 | Department of Radiology, Tottori Prefectural Central Hospital | |||||
| 著者所属（英） | ||||||
| 言語 | en | |||||
| 値 | Division of Radiology, Department of Multidisciplinary Internal Medicine, School of Medicine, Tottori University | |||||
| 抄録 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Background: Superficial siderosis (SS) results from chronic bleeding in the subarachnoid space. SS can be classified as infratentorial SS (i-SS) and supratentorial SS (s-SS). The cochlear modiolus (CM) normally shows low signal intensity (SI) on Tl-weighted images (T1WI). We noticed persistently high SI of the CM on unenhanced thin-sliced T1WI in patients with i-SS. The purpose of this study was to evaluate the correlation between SS and high SI of the CM on unenhanced T1WI. Methods: This retrospective study analyzed three cases with i-SS, eight cases with s-SS, and 23 normal controls (NC) evaluated on unenhanced thin-sliced T1WI with a three-dimensional spoiled gradient-recalled echo sequence. CM-T1SI scores of 0, 1, and 2 indicated low, iso, and high SI, respectively. In cases with scores of 2 evaluated several times, all scores were reviewed for each case. The CM-T1SI ratio was defined as the contrast ratio between the CM and the cerebellum. Differences between the three groups were statistically analyzed based on the CM-T1SI score and ratio. Receiver operative curve (ROC) analysis was used to determine the cut-off values for differentiating the i-SS group from the NC group based on the CM-T1SI ratio. Results: Two patients with i-SS had a score of 2 on all evaluations. The CM-T1SI score and ratio differed significantly between the i-SS and NC groups. The accuracy of the CM-T1SI ratio for discriminating i-SS from NC was 98.9% at a cutoff value of 0.628. Conclusion: High SI of the CM on unenhanced TIWI can be an additional characteristic finding of i-SS. | |||||
| 書誌情報 |
Yonago Acta Medica en : Yonago Acta Medica 巻 65, 号 4, p. 270-277, 発行日 2022-11-28 |
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| 出版者 | ||||||
| 出版者 | Tottori University Medical Press | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 05135710 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA00892882 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.33160/yam.2022.11.001 | |||||
| 権利 | ||||||
| 権利情報 | (C) 2022 Tottori University Medical Press. | |||||
| 情報源 | ||||||
| 関連名称 | Yonago Acta Medica. 2022, 65(4), 270-277. doi:10.33160/yam.2022.11.001 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.lib.tottori-u.ac.jp/yam/yam/yam65-4/65-4contents.html | |||||
| 関連名称 | https://www.lib.tottori-u.ac.jp/yam/yam/yam65-4/65-4contents.html | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.33160/yam.2022.11.001 | |||||
| 関連名称 | https://doi.org/10.33160/yam.2022.11.001 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| EISSN | ||||||
| 値 | 13468049 | |||||
