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Skeletal age assessment using MRI sometimes suffers from motion artifacts because of the long scan time in children. Reducing image acquisition time may provide benefits by reducing motion artifacts, increasing efficiency of examination, and creating a stress-free environment.\n\nMaterials and Methods\nUndersampling patterns for CS were optimized and CS-based examination with the acceleration factors of 3 (CS3, 55 seconds per scan) and 4 (CS4, 41 seconds per scan) was performed for 59 subjects (35 boys and 24 girls; mean age, 9.1 years; age range, 4.4–15.3 years) using a 0.3T scanner. The skeletal age was assessed by two raters (A and B).\n\nResults\nThe interrater and intrarater reproducibility in skeletal age assessment was high (Pearson\u0027s r = 0.966 [CS3(A1) vs. CS3(A2)], 0.962 [CS4(A1) vs. CS4(A2)], 0.935 [CS3(A1) vs. CS3(B)], and 0.964 [CS4(A1) vs. CS4(B)]; P \u003c 0.001). 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Acceleration of skeletal age MR examination using compressed sensing
http://hdl.handle.net/2241/00143813
http://hdl.handle.net/2241/00143813d470944f-a2a5-4053-b7b1-0d11e0e65723
名前 / ファイル | ライセンス | アクション |
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JMRI_44-1 (947.1 kB)
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Item type | Journal Article(1) | |||||
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公開日 | 2016-09-14 | |||||
タイトル | ||||||
タイトル | Acceleration of skeletal age MR examination using compressed sensing | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Terada, Yasuhiko
× Terada, Yasuhiko× Tamada, Daiki× Kose, Katsumi× Nozaki, Taiki× Kaneko, Yasuhito× Miyagi, Ryo× Yoshioka, Hiroshi |
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著者別名 |
寺田, 康彦
× 寺田, 康彦× 巨瀬 , 勝美 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Purpose To examine the feasibility of accelerating magnetic resonance (MR) image acquisition for children using compressed sensing (CS). Skeletal age assessment using MRI sometimes suffers from motion artifacts because of the long scan time in children. Reducing image acquisition time may provide benefits by reducing motion artifacts, increasing efficiency of examination, and creating a stress-free environment. Materials and Methods Undersampling patterns for CS were optimized and CS-based examination with the acceleration factors of 3 (CS3, 55 seconds per scan) and 4 (CS4, 41 seconds per scan) was performed for 59 subjects (35 boys and 24 girls; mean age, 9.1 years; age range, 4.4–15.3 years) using a 0.3T scanner. The skeletal age was assessed by two raters (A and B). Results The interrater and intrarater reproducibility in skeletal age assessment was high (Pearson's r = 0.966 [CS3(A1) vs. CS3(A2)], 0.962 [CS4(A1) vs. CS4(A2)], 0.935 [CS3(A1) vs. CS3(B)], and 0.964 [CS4(A1) vs. CS4(B)]; P < 0.001). The errors in skeletal age assessed on the basis of CS-reconstructed images were similar to those assessed on the basis of fully Nyquist-sampled images. Conclusion These results demonstrate the validity and reliability of skeletal age examination accelerated by CS-MRI. We conclude that the acceleration factor of 3 was optimal. J. Magn. Reson. Imaging 2016;44:204–211. |
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書誌情報 |
Journal of magnetic resonance imaging 巻 44, 号 1, p. 204-211, 発行日 2016-07 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1053-1807 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10837858 | |||||
PubMed番号 | ||||||
識別子タイプ | PMID | |||||
関連識別子 | 26713540 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1002/jmri.25140 | |||||
権利 | ||||||
権利情報 | © 2015wiley periodicals, Inc | |||||
権利 | ||||||
権利情報 | "This is the peer reviewed version of the following article:Journal of magnetic resonance imaging, 44:204-211,which has been published in final form at 10.1002/jmri.25140. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving." | |||||
著者版フラグ | ||||||
値 | author | |||||
出版者 | ||||||
出版者 | Wiley |