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Design: A reliability and agreement study. Setting: Thirteen MRI observers comprising eight neurologists and five radiologists at two universities in Japan. Participants: Data of 1.5-Tesla DWI and FLAIR were obtained from 29 patients with sCJD and 13 controls. Outcome measures: Standardisation of DWI display was performed utilising b0 imaging. The observers participated in standardised DWI, variable DWI (the display adjustment was observer dependent) and FLAIR sessions. The observers independently assessed each MRI for CJD-related lesions, that is, hyperintensity in the cerebral cortex or striatum, using a continuous rating scale. Performance was evaluated by the area under the receiver operating characteristics curve (AUC). Results: The mean AUC values were 0.84 (95% CI 0.81 to 0.87) for standardised DWI, 0.85 (95% CI 0.82 to 0.88) for variable DWI and 0.68 (95% CI 0.63 to 0.72) for FLAIR, demonstrating the superiority of DWI (p\u003c0.05). 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Multicentre multiobserver study of diffusion-weighted and fluid-attenuated inversion recovery MRI for the diagnosis of sporadic Creutzfeldt-Jakob disease: A reliability and agreement study
http://hdl.handle.net/10069/28970
http://hdl.handle.net/10069/28970b5dff8ac-85df-433e-8ac1-4771ad2a8d9d
名前 / ファイル | ライセンス | アクション |
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BMJOpen2_000649.pdf (321.2 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2012-08-08 | |||||
タイトル | ||||||
タイトル | Multicentre multiobserver study of diffusion-weighted and fluid-attenuated inversion recovery MRI for the diagnosis of sporadic Creutzfeldt-Jakob disease: A reliability and agreement study | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | adult | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | aged | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | article | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | brain cortex | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | clinical article | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | controlled study | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | corpus striatum | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | correlation coefficient | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | diagnostic test accuracy study | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | diffusion weighted imaging | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | female | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | fluid attenuated inversion recovery | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | human | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | image display | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Japan | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | male | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | multicenter study (topic) | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | neurologist | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | nuclear magnetic resonance imaging | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | observational study | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | radiologist | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | rating scale | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | receiver operating characteristic | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | reliability | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | sporadic Creutzfeldt Jakob disease | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | standardization | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | university hospital | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Fujita, Koji
× Fujita, Koji× Harada, Masafumi× Sasaki, Makoto× Yuasa, Tatsuhiko× Sakai, Kenji× Hamaguchi, Tsuyoshi× Sanjo, Nobuo× Shiga, Yusei× Satoh, Katsuya× Atarashi, Ryuichiro× Shirabe, Susumu× Nagata, Ken× Maeda, Tetsuya× Murayama, Shigeo× Izumi, Yuishin× Kaji, Ryuji× Yamada, Masahito× Mizusawa, Hidehiro |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Objectives: To assess the utility of the display standardisation of diffusion-weighted MRI (DWI) and to compare the effectiveness of DWI and fluid-attenuated inversion recovery (FLAIR) MRI for the diagnosis of sporadic Creutzfeldt-Jakob disease (sCJD). Design: A reliability and agreement study. Setting: Thirteen MRI observers comprising eight neurologists and five radiologists at two universities in Japan. Participants: Data of 1.5-Tesla DWI and FLAIR were obtained from 29 patients with sCJD and 13 controls. Outcome measures: Standardisation of DWI display was performed utilising b0 imaging. The observers participated in standardised DWI, variable DWI (the display adjustment was observer dependent) and FLAIR sessions. The observers independently assessed each MRI for CJD-related lesions, that is, hyperintensity in the cerebral cortex or striatum, using a continuous rating scale. Performance was evaluated by the area under the receiver operating characteristics curve (AUC). Results: The mean AUC values were 0.84 (95% CI 0.81 to 0.87) for standardised DWI, 0.85 (95% CI 0.82 to 0.88) for variable DWI and 0.68 (95% CI 0.63 to 0.72) for FLAIR, demonstrating the superiority of DWI (p<0.05). There was a trend for higher intraclass correlations of standardised DWI (0.74, 95% CI 0.66 to 0.83) and variable DWI (0.72, 95% CI 0.62 to 0.81) than that of FLAIR (0.63, 95% CI 0.53 to 0.74), although the differences were not statistically significant. Conclusions: Standardised DWI is as reliable as variable DWI, and the two DWI displays are superior to FLAIR for the diagnosis of sCJD. The authors propose that hyperintensity in the cerebral cortex or striatum on 1.5-Tesla DWI but not FLAIR can be a reliable diagnostic marker for sCJD. | |||||
書誌情報 |
BMJ Open 巻 2, 号 1, p. e000649, 発行日 2012-01-30 |
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出版者 | ||||||
出版者 | BMJ Publishing Group | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 20446055 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1136/bmjopen-2011-000649 | |||||
権利 | ||||||
権利情報 | This is an open-access article distributed under the terms of the Creative Commons Attribution Non-commercial License, which permits use, distribution, and reproduction in any medium, provided the original work is properly cited, the use is non commercial and is otherwise in compliance with the license. See: http://creativecommons.org/licenses/by-nc/2.0/ and http://creativecommons.org/licenses/by-nc/2.0/legalcode. | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | BMJ Open, 2(1), e000649; 2012 |