• Technical Article •
The simulation and design of a multi-channel RF coil for macaque
DOI:10.12015/issn.1674-8034.2016.06.010.
| [Abstract] Objective: Introduce a new simulation method used to eliminate the couple between the coils for magnetic resonance, which will be applied to the design of a multi-channel receive coil. In the design of multi-channel coil for macaque, the adjacent coil’s decoupling position will be obtained by simulation.Materials and Methods: To evaluate the couple between the coils, we use electromagnetic field and circuit simulation software to calculate the coil’s electromagnetic field and S- parameter.Results: We obtain the decoupling position of the double round and the double square coil through simulation. The results are consistent with the theoretical calculation. In the design of the multi-channel receive coil, when the distance of centre is 42.2 millimeter, the couple between the coils can be neglected.Conclusion: The feasibility of the simulation method can be proved according to the results. The relative position of the adjacent coils will be obtained by simulation, which meets the demand of the design. |
| [Keywords] Macaque；Magnetic resonance imaging；Brain；Multi-channel coil；Decoupling；Simulation of coupling |
LI Lei East China Normal University, Shanghai Key Laboratory of Magnetic Resonance, Shanghai 200062, China
XU Jun-cheng East China Normal University, Shanghai Key Laboratory of Magnetic Resonance, Shanghai 200062, China
CAI Xin East China Normal University, Shanghai Key Laboratory of Magnetic Resonance, Shanghai 200062, China
JIANG Yu* East China Normal University, Shanghai Key Laboratory of Magnetic Resonance, Shanghai 200062, China
*Correspondence to: Jiang Y, E-mail: yjang@phy.ecnu.edu.cn
Conflicts of interest None.
| ACKNOWLEDGMENTS This work was part of National High Technology Research and Development Program of China No.2014AA123401 |
| Received 2016-01-15 |
| Accepted 2016-03-11 |
| DOI: 10.12015/issn.1674-8034.2016.06.010 |
| DOI:10.12015/issn.1674-8034.2016.06.010. |
[1]
Adluru N, Zhang H, Fox AS, et al. A diffusion tensor brain template for rhesus macaques. NeuroImage, 2012, 59(1): 306-318.
[2]
Arcaro MJ, Pinsk MA, Kastner S, et al. Visuotopic organization of macaque posterior parietal cortex: a functional magnetic resonance imaging study. Neurosci, 2011, 31(6): 2064-2078.
[3]
Bell AH, Hadj-Bouziane F, Frihauf JB, et al. Object representations in the temporal cortex of monkeys and humans as revealed by functional magnetic resonance imaging. Neurophysiol, 2009, 101(2): 688-700.
[4]
Nikos K, Hellmut M, Mark A, et al. Ultra high-resolution fMRI in monkeys with implanted RF coils. Neuron, 2002, 32(2): 227-242.
[5]
Gregor A, Pierre F, Johannes R, et al. A geometrically adjustable 16-channel transmit/receive transmission line array for improved RF efficiency and parallel imaging performance at 7 Tesla. Magn Reson in Med, 2008, 59(3): 590-597.
[6]
Colin A, Patti A, Wang JL, et al. Quadrature RF coil for in vivo brain MRI of a macaque monkey in a stereotaxic head frame. Concepts Magn Reson, 2012, 41(1): 22-27.
[7]
Ray F, Randy O, Christopher J. Coupling and decoupling theory and its application to the MRI phased array. Magn Reson in Med, 2002, 48(1): 203-213.
[8]
Ozen Al, Bock M, Atalar E, et al. Active decoupling of RF coils using a transmit array system. Magn Reson Mater Phys Biol Med, 2015, 6(28): 565-576.
[9]
Dieringer MA, Sc M, Renz W. Design and application of a four- Channel transmit/receive surface coil for functional cardiac imaging at 7 T. J Magn Reson Imaging, 2011, 33(1): 736-741.
[10]
Janssens T, Keil B, Farivar R, et al. An implanted 8-channel array coil for high-resolution macaque MRI at 3 T. NeuroImage, 2012, 62(3): 1529-1536.
[11]
Daniel P, Cecil Y, Julie M, et al. An embedded four-channel receive-only RF coil array for fMRI experiments of the somatosensory pathway in conscious awake marmosets. NMR Biomed, 2013, 26(11): 1395-1402.
[12]
Enomoto A, Saito K, Subramanian S, et al. Passive decoupling due to low Q-factors of four-channel coils in 300-MHz pulsed EPR Imaging. Appl Magn Reson, 2015, 6(46): 671-683.
[13]
赵凯华，陈熙谋. 新概念物理教程电磁学. 北京: 高等教育出版社, 2006, 206-209.
[14]
俎栋林. 核磁共振成像仪构造原理和物理设计. 北京: 科学出版社, 2014, 32-34.
[15]
Roemer PB, Souza SP, Mueller OM, et al. The NMR phased array. Magn Reson Med, 1990, 16(2): 192-225.
[16]
Yan X, Ma CX, Shi L, et al. Optimization of an 8-Channel looparray coil for a 7 T MRI system with the guidance of a cosimulation approach. Appl Magn Reson, 2014, 45(5): 437-449.
[17]
路德维格. 射频电路设计理论与应用. 北京: 电子工业出版社, 2002: 111-129.
[18]
骆国丽，肖亮. 主磁场不均匀情况下的磁共振虚拟成像初步研究. 磁共振成像, 2015, 6(6): 471-475.
