| Item type |
学術雑誌論文 / Journal Article(1) |
| 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Scheme |
Other |
|
主題 |
cochlear modiolus |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
magnetic resonance imaging |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
superficial siderosis |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
T1-shortening |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
SPGR |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
cochlear modiolus |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
magnetic resonance imaging |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
superficial siderosis |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
T1-shortening |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
SPGR |
| 資源タイプ |
|
|
資源タイプ |
journal article |
| 著者 |
松末, 英司
井上, 千恵
谷野, 朋彦
藤井, 進也
Inoue, Chie
Matsumoto, Kensuke
Nakamura, Kazuhiko
|
| 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 |
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|
出版者 |
Tottori University Medical Press |
| ISSN |
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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 |
|
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|
関連名称 |
Yonago Acta Medica. 2022, 65(4), 270-277. doi:10.33160/yam.2022.11.001 |
| 関連サイト |
|
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|
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 |
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|
関連名称 |
https://www.lib.tottori-u.ac.jp/yam/yam/yam65-4/65-4contents.html |
| 関連サイト |
|
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|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.33160/yam.2022.11.001 |
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|
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 |
yam65(4)_270.pdf (2.5 MB)
