Articles

Development of Gradient Coils and 1H/13C Dual-resonance RF Coils for a Small-bore 5 T MRI System

  • YI Peng ,
  • CAO Li ,
  • HUANG Zhen ,
  • CHENG Xin ,
  • WANG Jiaxin ,
  • CHEN Li ,
  • CHEN Fang ,
  • BAO Qingjia ,
  • ZHANG Zhi ,
  • LIU Chaoyang
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  • 1. School of Electrical and Electronic Engineering, Wuhan Polytechnic University, Wuhan 430023, China
    2. State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan (Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences), Wuhan 430071, China
    3. University of Chinese Academy of Sciences, Beijing 100049, China

Received date: 2024-03-13

  Online published: 2024-03-29

Abstract

Based on the independently developed 5 T magnetic resonance imaging (MRI) system and research needs of 13C metabolic MRI, a gradient coil and 1H/13C dual resonance radiofrequency (RF) coil system for small-bore MRI were designed. The gradient coil was designed by using the finite-difference stream function method, and the RF coil was designed as a saddle coil combined with a surface coil in a dual-resonance scheme. Numerical simulation analysis of the magnetic field distribution was carried out by using the finite-element method, and a set of gradient and RF coils for small-bore 5 T 13C MRI was successfully developed. The feasibility of the design scheme was verified using a home-made 5 T MRI system, and the magnetic resonance images of 13C-labeled urea phantom and 1H magnetic resonance images of mice head were acquired by experimental tests, which lays a foundation for 13C metabolic MRI based on dynamic nuclear polarization in the future.

Cite this article

YI Peng , CAO Li , HUANG Zhen , CHENG Xin , WANG Jiaxin , CHEN Li , CHEN Fang , BAO Qingjia , ZHANG Zhi , LIU Chaoyang . Development of Gradient Coils and 1H/13C Dual-resonance RF Coils for a Small-bore 5 T MRI System[J]. Chinese Journal of Magnetic Resonance, 2024 , 41(3) : 245 -256 . DOI: 10.11938/cjmr20243100

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