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Diffusion-tensor-based method for robust and practical estimation of axial and radial diffusional kurtosis.
https://repo.qst.go.jp/records/47671
https://repo.qst.go.jp/records/4767127233cd3-c4f6-431e-8395-2f723830e81f
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-03-21 | |||||
| タイトル | ||||||
| タイトル | Diffusion-tensor-based method for robust and practical estimation of axial and radial diffusional kurtosis. | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 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 | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Tachibana, Yasuhiko
× Tachibana, Yasuhiko× Obata, Takayuki× Tsuchiya, Hiroki× Omatsu, Tokuhiko× Kishimoto, Riwa× Kawaguchi, Hiroshi× Nishikori, Akira× Kamagata, Koji× Hori, Masaaki× Aoki, Shigeki× Tsuji, Hiroshi× Inoue, Tomio× 立花 泰彦× 小畠 隆行× 土屋 洋貴× 尾松 徳彦× 岸本 理和× 川口 拓之× 辻 比呂志 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | OBJECTIVES: A new method that can estimate diffusional kurtosis image (DKI), estimated DKI (eDKI), parallel and perpendicular to neuronal fibres from greatly limited image data was designed to enable quick and practical assessment of DKI in clinics. The purpose of this study was to discuss the potential of this method for clinical use. \nMETHODS: Fourteen healthy volunteers were examined with a 3-Tesla MRI. The diffusion-weighting parameters included five different b-values (0, 500, 1,500, 2,000 and 2,500 s/mm2) with 64 different encoding directions for each of the b-values. K values were calculated by both conventional DKI (convDKI) and eDKI from these complete data, and also from the data that the encoding directions were abstracted to 32, 21, 15, 12 and 6. Error-pixel ratio and the root mean square error (RMSE) compared with the standard were compared between the methods (Wilcoxon signed-rank test: P < 0.05 was considered significant). \nRESULTS: Error-pixel ratio was smaller in eDKI than in convDKI and the difference was significant. In addition, RMSE was significantly smaller in eDKI than in convDKI, or otherwise the differences were not significant when they were obtained from the same data set. \nCONCLUSION: eDKI might be useful for assessing DKI in clinical settings. |
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| 書誌情報 |
European radiology 巻 26, 号 8, p. 2559-2566, 発行日 2013-05 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0938-7994 | |||||
| PubMed番号 | ||||||
| 識別子タイプ | PMID | |||||
| 関連識別子 | 26443602 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1007/s00330-015-4038-z | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://link.springer.com/article/10.1007%2Fs00330-015-4038-z | |||||
| 関連名称 | http://link.springer.com/article/10.1007%2Fs00330-015-4038-z | |||||
