双单元阵列式线圈核磁共振探头设计  

Design of dual-unit array coil MRI probe

作　　者：赵浩博 王俊楠 宋子杰 陆荣生[1,2] Zhao Haobo;Wang Junnan;Song Zijie;Lu Rongsheng(School of Mechanical Engineering,Southeast University,Jiangsu Nanjing,211189,China;Jiangsu Key Laboratory for Design and Manufacture of Micro-NanoBiomedical Instruments, Southeast University,Jiangsu Nanjing, 211189,China)

机构地区：[1]东南大学机械工程学院,江苏南京211189 [2]江苏省微纳生物医疗器械设计与制造重点实验室,江苏南京211189

出　　处：《机械设计与制造工程》2022年第6期19-24,共6页Machine Design and Manufacturing Engineering

摘　　要：核磁共振探头是核磁共振仪器的关键部件。以相控阵列线圈技术为基础,提出了一种应用于22 MHz核磁共振平台的双单元阵列式线圈核磁共振探头。设计了一种双单元阵列式线圈的结构,通过对线圈、调谐匹配以及去耦合电路仿真,实现了双单元阵列式线圈之间的去耦合。基于柔性电路板加工了双单元阵列线圈,制作了相应的调谐匹配电路,最终完成了双单元阵列式线圈核磁共振探头的研制。基于22 MHz核磁共振平台对探头进行性能测试,实验结果证明了所提出的双单元阵列式线圈核磁共振探头具有良好的核磁共振信号检测能力。The MRI probe is a key component of the MRI instrument.Based on phased array coil technology,a dual-cell array type coil MRI probe is proposed for application in 22 MHz MRI platform.A dual-cell array coil structure is designed,and the decoupling between the dual-cell array coils is realized through coil and tuning matching and decoupling circuit simulation.The dual-unit array coil is processed based on a flexible circuit board,and the corresponding tuning and matching circuit is fabricated to finally complete the development of the dual-unit array coil MRI probe.The performance of the probe is tested based on the 22 MHz NMR platform,and the experimental results proves that the proposed dual-cell array coil NMR probe has good NMR signal detection capability.

关 键 词：核磁共振探头 相控阵线圈 调谐匹配 耦合 去耦合 

分 类 号：TH89[机械工程—仪器科学与技术]