Closely Spaced Double-Row Microstrip RF Arrays for Parallel MR Imaging at Ultrahigh Fields
Yan XQ(燕新强); Yan; Xinqiang; Xue; Rong; Zhang; Xiaoliang
刊名APPLIED MAGNETIC RESONANCE
2015
卷号46期号:11页码:1239-1248
学科分类Physics; Spectroscopy
DOI10.1007/s00723-015-0712-1
通讯作者燕新强
文章类型Article
英文摘要Radiofrequency (RF) coil arrays with high count of elements, e.g., closely spaced multi-row arrays, exhibit superior parallel imaging performance in magnetic resonance imaging (MRI). However, it is technically challenging and time-consuming to build multi-row arrays due to complex coupling issues. This paper presents a novel and simple method for closely spaced multi-row RF array designs. Induced current elimination decoupling method has shown the capability of reducing coupling between microstrip elements from different rows. In this study, its capability for decoupling array elements from the same row was investigated and validated by bench tests, with an isolation improvement from -8.9 to -20.7 dB. Based on this feature, a closely spaced double-row microstrip array with 16 elements was built at 7 T. S (21) between any two elements of the 16-channel closely spaced double-row microstrip array was better than -14 dB. In addition, its feasibility and performance was validated by MRI experiments. No significant image reconstruction-related noise amplifications were observed for parallel imaging even when reduced factor (R) achieves 4. The experimental results demonstrated that the proposed design might be a simple and efficient approach in fabricating closely spaced multi-row RF arrays.
类目[WOS]Physics, Atomic, Molecular & Chemical ; Spectroscopy
收录类别SCI ; EI
WOS记录号WOS:000363270300004
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被引频次:3[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/311005/228913
专题中国科学院高能物理研究所_核技术应用研究中心_期刊论文
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Yan XQ,Yan,Xinqiang,et al. Closely Spaced Double-Row Microstrip RF Arrays for Parallel MR Imaging at Ultrahigh Fields[J]. APPLIED MAGNETIC RESONANCE,2015,46(11):1239-1248.
APA 燕新强.,Yan.,Xinqiang.,Xue.,Rong.,...&Xiaoliang.(2015).Closely Spaced Double-Row Microstrip RF Arrays for Parallel MR Imaging at Ultrahigh Fields.APPLIED MAGNETIC RESONANCE,46(11),1239-1248.
MLA 燕新强,et al."Closely Spaced Double-Row Microstrip RF Arrays for Parallel MR Imaging at Ultrahigh Fields".APPLIED MAGNETIC RESONANCE 46.11(2015):1239-1248.
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