一种基于宽边分裂环谐振器的 7T MRI 线圈。

A broadside-split-ring resonator-based coil for MRI at 7 T.

机构信息

Department of Electronics and Electromagnetism, University of Seville, 41012 Seville, Spain.

出版信息

IEEE Trans Med Imaging. 2013 Jun;32(6):1081-4. doi: 10.1109/TMI.2013.2253488. Epub 2013 Mar 20.

DOI:10.1109/TMI.2013.2253488

Abstract

A coil design termed as broadside-coupled loop (BCL) coil and based on the broadside-coupled split ring resonator (BC-SRR) is proposed as an alternative to a conventional loop design at 7T. The BCL coil has an inherent uniform current which assures the rotational symmetry of the radio-frequency field around the coil axis. A comparative analysis of the signal-to-noise ratio provided by BCL coils and conventional coils has been carried out by means of numerical simulations and experiments in a 7T whole body system.

摘要

提出了一种称为侧边耦合环形（BCL）线圈的线圈设计，该设计基于侧边耦合分裂环谐振器（BC-SRR），可作为 7T 时传统环形设计的替代方案。BCL 线圈具有固有均匀电流，可确保射频场围绕线圈轴的旋转对称性。通过数值模拟和在 7T 全身系统中的实验，对 BCL 线圈和传统线圈提供的信噪比进行了比较分析。