Multichannel double-row transmission line array for human MR imaging at ultrahigh fields
Yan XQ(燕新强); Yan; Xinqiang; Pedersen; Jan Ole; Wei; Long; Zhang; Xiaoliang; Xue; Rong; Wei L(魏龙)
刊名IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING
2015
卷号62期号:6页码:1652-1659
关键词Decouple Head High field MRI Microstripes Multiple row Parallel imaging Parallel transmission Radio frequency coils RF shimming
DOI10.1109/TBME.2015.2401976
文章类型Article
英文摘要Objective: In microstrip transmission line (MTL) transmit/receive (transceive) arrays used for ultrahigh field MRI, the array length is often constrained by the required resonant frequency, limiting the image coverage. The purpose of this study is to increase the imaging coverage and also improve its parallel imaging capability by utilizing a double-row design. Methods: A 16-channel double-row MTL transceive array was designed, constructed, and tested for human head imaging at 7 T. Array elements between two rows were decoupled by using the induced current elimination or magnetic wall decoupling technique. In vivo human head images were acquired, and g-factor results were calculated to evaluate the performance of this double-row array. Results: Testing results showed that all coil elements were well decoupled with a better than -18 dB transmission coefficient between any two elements. The double-row array improves the imaging quality of the lower portion of the human head, and has low g-factors even at high acceleration rates. Conclusion: Compared with a regular single-row MTL array, the double-row array demonstrated a larger imaging coverage along the z-direction with improved parallel imaging capability. Significance: The proposed technique is particularly suitable for the design of large-sized transceive arrays with large channel counts, which ultimately benefits the imaging performance in human MRI. © 1964-2012 IEEE.
类目[WOS]703.1 Electric Networks ; 711.1 Electromagnetic Waves in Different Media ; 716.3 Radio Systems and Equipment ; 746 Imaging Techniques ; 921 Mathematics
收录类别EI
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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/311005/228920
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. Multichannel double-row transmission line array for human MR imaging at ultrahigh fields[J]. IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING,2015,62(6):1652-1659.
APA 燕新强.,Yan.,Xinqiang.,Pedersen.,Jan Ole.,...&魏龙.(2015).Multichannel double-row transmission line array for human MR imaging at ultrahigh fields.IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING,62(6),1652-1659.
MLA 燕新强,et al."Multichannel double-row transmission line array for human MR imaging at ultrahigh fields".IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING 62.6(2015):1652-1659.
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