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タイトル: | 3D dynamic pituitary MR imaging with CAIPIRINHA: initial experience and comparison with 2D dynamic MR imaging. |
著者: | Fushimi, Yasutaka https://orcid.org/0000-0002-1982-3168 (unconfirmed) Okada, Tomohisa https://orcid.org/0000-0003-2312-5677 (unconfirmed) Kanagaki, Mitsunori Yamamoto, Akira https://orcid.org/0000-0002-8894-3622 (unconfirmed) Kanda, Yumiko Sakamoto, Ryo Hojo, Masato Takahashi, Jun C Miyamoto, Susumu Togashi, Kaori |
著者名の別形: | 伏見, 育崇 |
キーワード: | MR Three-dimensional imaging Controlled aliasing in parallel imaging results in higher acceleration Dynamic pituitary MR Skull base |
発行日: | Oct-2014 |
出版者: | Elsevier Ireland Ltd. |
誌名: | European journal of radiology |
巻: | 83 |
号: | 10 |
開始ページ: | 1900 |
終了ページ: | 1906 |
抄録: | [Objectives]To evaluate the validity of 3D dynamic pituitary MR imaging with controlled aliasing in parallel imaging results in higher acceleration (CAIPIRINHA), with special emphasis on demarcation of pituitary posterior lobe and stalk. [Methods]Participants comprised 32 patients who underwent dynamic pituitary MR imaging due to pituitary or parasellar lesions. 3D dynamic MR with CAIPIRINHA was performed at 3 T with 20-s-interval, precontrast, 1st to 5th dynamic images. Normalized values and enhanced ratios (dynamic postcontrast image values divided by precontrast ones) were compared between 3D and 2D dynamic MR imaging for patients with visual identification of posterior lobe and stalk. [Results]In 3D, stalk was identified in 29 patients and unidentified in 3, and posterior lobe was identified in 28 and unidentified in 4. In 2D, stalk was identified in 26 patients and unidentified in 6 patients, and posterior lobe was identified in 15 and unidentified in 17. Normalized values of pituitary posterior lobe and stalk were higher in 3D than 2D (P < 0.001). No significant difference in enhancement ratio was seen between 3D and 2D. [Conclusions]3D dynamic pituitary MR provided better identification and higher normalized values of pituitary posterior lobe and stalk than 2D. |
記述: | This work was supported by JSPS KAKENHI grant Number 25461815. Available online 2 July 2014 |
著作権等: | © 2014 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/. NOTICE: this is the author's version of a work that was accepted for publication in European journal of radiology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in European journal of radiology, 83(10), doi:10.1016/j.ejrad.2014.06.018 許諾条件により、本文ファイルは2015-07-02に公開. This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/197929 |
DOI(出版社版): | 10.1016/j.ejrad.2014.06.018 |
PubMed ID: | 25037932 |
出現コレクション: | 学術雑誌掲載論文等 |
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