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 |
| DOI | 10.1109/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
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。

