Theoretical analysis of magnetic wall decoupling method for radiative antenna arrays in ultrahigh magnetic field MRI
文献类型：期刊论文
| 作者 | Yan XQ(燕新强); Yan; X.; Z. Xie; J. O. Pedersen and X. Zhang |
| 刊名 | Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering
 |
| 出版日期 | 2015 |
| 卷号 | 45期号:4页码:183-190 |
| 关键词 | monopole dipole RF coil array magnetic wall ICE decouple simulation ultrahigh field MRI |
| 通讯作者 | 燕新强 |
| 英文摘要 | Radiative antenna techniques, e.g., dipole and monopole, have been proposed for radiofrequency (RF) coil array designs in ultrahigh field MRI to obtain stronger B-1 field and higher signal-to-noise ratio (SNR) gain in the areas deep inside human head or body. It is known that element decoupling performance is crucial to SNR and parallel imaging ability of array coil and has been a challenging issue in radiative antenna array designs for MR imaging. Magnetic wall or induced current elimination (ICE) technique has proven to be a simple and effective way of achieving sufficient decoupling for radiative array coils experimentally. In this study, this decoupling technique for radiative coil array was analyzed theoretically and verified by a simulation study. The decoupling conditions were derived and obtained from the theory. By applying the predicated decoupling conditions, the isolation of two radiative elements could be improved from about -8 dB to better than -35 dB. The decoupling performance has also been validated by current distribution along the radiative elements and magnetic field profiles in a water phantom. (c) 2015 Wiley Periodicals, Inc. |
| 学科主题 | Chemistry; Instruments & Instrumentation; Physics; Spectroscopy |
| 类目[WOS] | Chemistry, Physical ; Instruments & Instrumentation ; Physics, Atomic, Molecular & Chemical ; Spectroscopy |
| 收录类别 | SCI |
| WOS记录号 | WOS:000363764500003 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/229037]  |
| 专题 | 高能物理研究所_核技术应用研究中心 |
| 推荐引用方式 GB/T 7714 | Yan XQ,Yan,X.,et al. Theoretical analysis of magnetic wall decoupling method for radiative antenna arrays in ultrahigh magnetic field MRI[J]. Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering,2015,45(4):183-190. |
| APA | 燕新强,Yan,X.,Z. Xie,&J. O. Pedersen and X. Zhang.(2015).Theoretical analysis of magnetic wall decoupling method for radiative antenna arrays in ultrahigh magnetic field MRI.Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering,45(4),183-190. |
| MLA | 燕新强,et al."Theoretical analysis of magnetic wall decoupling method for radiative antenna arrays in ultrahigh magnetic field MRI".Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering 45.4(2015):183-190. |
入库方式： OAI收割
来源：高能物理研究所
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