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Comparison of 12 Quadrature Birdcage Coils with Different Leg Shapes at 9.4 T
Xu, Yongfeng1,2; Wen, Qingqing1,3
2017-09-01
发表期刊APPLIED MAGNETIC RESONANCE
卷号48期号:9页码:901-909
摘要The purpose of this study was to analyse the relationship between the radio frequency (RF) coil performance and conductor surface shape for ultra-high field (UHF) magnetic resonance imaging. Twelve different leg-shaped quadrature birdcage coils were modeled and built, e.g., 4 mm-width-leg conventional birdcage coil, 7 mm-width-leg conventional birdcage, 10 mm-width-leg conventional birdcage coil, 13 mm-width-leg conventional birdcage coil, inside arc-shape-leg birdcage coil, outward arc-shape-leg birdcage coil, inside right angle-shape-leg birdcage coil, outward right angle-shape-leg birdcage coil, vertical 4 mm-width-leg vertical birdcage, 6 mm-width-leg vertical birdcage, 8 mm-width-leg vertical birdcage and 10 mm-width-leg vertical birdcage. Studies were carried out in both electromagnetic simulations with finite element method as well as in vitro saline phantom experiments at 9.4 T. Both the results of simulation and experiment showed that conventional birdcage coil produces the highest signal-to-noise ratio (SNR) while the vertical birdcage coil produces the most homogeneous RF magnetic (B (1)) field at UHF. For conventional birdcage coils, as well as the vertical birdcage coils, only the proper width of legs results in the best performance (e.g., B (1) homogeneous and SNR). For vertical birdcage coils, the wider the leg size, the higher RF magnetic (B (1)) field intensity distribution.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1007/s00723-017-0920-y
关键词[WOS]HYPERPOLARIZED C-13
收录类别SCI
语种英语
WOS研究方向Physics ; Spectroscopy
WOS类目Physics, Atomic, Molecular & Chemical ; Spectroscopy
WOS记录号WOS:000407561100004
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文献类型期刊论文
条目标识符http://ir.hfcas.ac.cn:8080/handle/334002/33617
专题中科院强磁场科学中心
作者单位1.Chinese Acad Sci, High Field Magnet Lab, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
3.Univ Chinese Acad Sci, Beijing 10010, Peoples R China
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Xu, Yongfeng,Wen, Qingqing. Comparison of 12 Quadrature Birdcage Coils with Different Leg Shapes at 9.4 T[J]. APPLIED MAGNETIC RESONANCE,2017,48(9):901-909.
APA Xu, Yongfeng,&Wen, Qingqing.(2017).Comparison of 12 Quadrature Birdcage Coils with Different Leg Shapes at 9.4 T.APPLIED MAGNETIC RESONANCE,48(9),901-909.
MLA Xu, Yongfeng,et al."Comparison of 12 Quadrature Birdcage Coils with Different Leg Shapes at 9.4 T".APPLIED MAGNETIC RESONANCE 48.9(2017):901-909.
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