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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
文章类型Article
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.
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:8[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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