Modelling and B1 Shim Analysis of 16-Element Transceiver Array at 7 T.
Modelling and B1 Shim Analysis of 16-Element Transceiver Array at 7 T.
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7 T 下 16 元件收发器阵列的建模和 B1 匀场分析。
DOI：
10.1109/iceaa.2019.8879006
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Rispoli,JosephV
中科院分区：
文献类型：
--
作者：
Li,Xin;Gong,Haoda;Pan,JullieW;Hetherington,HobyP;Rispoli,JosephV
这项工作检查了使用商用软件进行电磁建模的工作流程，并验证了在298 MHz下运行的收发器阵列线圈，用于7 T下的磁共振成像和光谱学。圆锥形、紧密配合的平行发射头阵列由两行组成，每行有八个环形线圈，并通过B1匀场发射两种不同的空间分布。考虑有限差分时域仿真设置和电路域协同仿真后处理进行检查，是适合在线安全监测的虚拟观察点的生成。
The work examines the workflow of using commercially available software for electromagnetic modelling and validation of a transceiver array coil operating at 298 MHz for magnetic resonance imaging and spectroscopy at 7 T. The cone-shaped, tight-fit parallel transmit head array consists of two rows with eight loop coils per row and transmits two distinct spatial distributions by means of B1 shimming. Considerations for finite-difference time-domain simulation setup and post-processing with circuit-domain co-simulation are examined, as is the generation of virtual observation points suitable for online safety monitoring.