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Hybrid Monopole/Loop Coil Array for Human Head MR Imaging at 7 T
Yan XQ(燕新强); Wei L(魏龙); Yan, XQ; Wei, L; Xue, R; Zhang, XL
2015
发表期刊APPLIED MAGNETIC RESONANCE
卷号46期号:5页码:541-550
通讯作者燕新强
摘要The monopole coil and loop coil have orthogonal radiofrequency (RF) fields and thus are intrinsically decoupled electromagnetically if they are laid out appropriately. In this study, we proposed a hybrid monopole/loop technique which could combine the advantages of both loop arrays and monopole arrays. To investigate this technique, a hybrid RF coil array containing four monopole channels and four loop channels was developed for human head magnetic resonance (MR) imaging at 7 T. In vivo MR imaging and g-factor results using monopole-only channels, loop-only channels and all channels of the hybrid array were acquired and evaluated. Compared with the monopole-only and loop-only channels, the proposed hybrid array has the higher signal-to-noise ratio (SNR) and better parallel imaging performance. Sufficient electromagnetic decoupling and diverse RF magnetic field (B-1) distributions of monopole channels and loop channels may contribute to this performance improvement. From experimental results, the hybrid monopole/loop array has low g-factor and excellent SNR at both periphery and center of the brain, which is valuable for human head imaging at ultrahigh fields.
文章类型Article
学科领域Physics; Spectroscopy
DOI10.1007/s00723-015-0656-5
收录类别SCI ; EI
WOS类目Physics, Atomic, Molecular & Chemical ; Spectroscopy
WOS记录号WOS:000353464200005
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被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228304
专题核技术应用研究中心
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Yan XQ,Wei L,Yan, XQ,et al. Hybrid Monopole/Loop Coil Array for Human Head MR Imaging at 7 T[J]. APPLIED MAGNETIC RESONANCE,2015,46(5):541-550.
APA 燕新强,魏龙,Yan, XQ,Wei, L,Xue, R,&Zhang, XL.(2015).Hybrid Monopole/Loop Coil Array for Human Head MR Imaging at 7 T.APPLIED MAGNETIC RESONANCE,46(5),541-550.
MLA 燕新强,et al."Hybrid Monopole/Loop Coil Array for Human Head MR Imaging at 7 T".APPLIED MAGNETIC RESONANCE 46.5(2015):541-550.
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