中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Multichannel double-row transmission line array for human MR imaging at ultrahigh fields

文献类型:期刊论文

作者Yan, Xinqiang; Pedersen, Jan Ole; Wei, Long; Zhang, Xiaoliang; Xue, Rong
刊名IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING
出版日期2015
卷号62期号:6页码:1652-1659
关键词Decouple head high-field MRI induced current elimination (ICE) microstrip multiple row parallel imaging parallel transmission (pTx) radio frequency (RF) coil array RF shimming
ISSN号0018-9294
DOI10.1109/TBME.2015.2401976
文献子类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.

电子版国际标准刊号1558-2531
WOS关键词HUMAN BRAIN ; COIL ARRAY ; 7 T ; RF COIL ; RADIOFREQUENCY COIL ; VOLUME COIL ; DESIGN ; PERFORMANCE ; HARMONICS ; SMASH
WOS研究方向Engineering
语种英语
WOS记录号WOS:000354943400021
源URL[https://ir.ihep.ac.cn/handle/311005/304244]  
专题高能物理研究所_核技术应用研究中心
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714
Yan, Xinqiang,Pedersen, Jan Ole,Wei, Long,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 Yan, Xinqiang,Pedersen, Jan Ole,Wei, Long,Zhang, Xiaoliang,&Xue, Rong.(2015).Multichannel double-row transmission line array for human MR imaging at ultrahigh fields.IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING,62(6),1652-1659.
MLA Yan, Xinqiang,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.

入库方式: OAI收割

来源:高能物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。