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一种用于开放式 MRI 的射频发射线圈设计

魏树峰 杨文晖 郭丽慧 王慧贤

波谱学杂志2012,Vol.29Issue(3):354-360,7.
波谱学杂志2012,Vol.29Issue(3):354-360,7.

一种用于开放式 MRI 的射频发射线圈设计

A RF Transmit Coil Designed for Open Magnetic Resonance Imaging

魏树峰 1杨文晖 2郭丽慧 1王慧贤1

作者信息

  • 1. 中国科学院电工研究所,北京100190
  • 2. 中国科学院研究生院,北京100049
  • 折叠

摘要

Abstract

The design of a radiofrequency (RF) transmit coil for open magnetic resonance imaging (MRI) was introduced. The transmit coil is consisted of two rectangular solenoid coils with the same size which are installed on the two poles of the magnet in orthogonal directions. The two coils are positioned. A transmit coil used for 0. 23 T open MRI was made. Numerical simulation of electromagnetic fields was used to optimize the distance of the turns in the coils. The homogeneity and power efficiency of the coil were measured experimentally. The deviation of the amplitude of the RF field in a sphere of 300 mm in diameter was measured to be less than 3 dB.

关键词

磁共振成像(MRI)/射频发射线圈/垂直场/电磁场数值计算

Key words

MRI/ RF transmit coil/ vertical field/ numerical simulation of electromagnetic fields

分类

数理科学

引用本文复制引用

魏树峰,杨文晖,郭丽慧,王慧贤..一种用于开放式 MRI 的射频发射线圈设计[J].波谱学杂志,2012,29(3):354-360,7.

基金项目

国家自然科学基金青年科学基金资助项目(50807050). (50807050)

波谱学杂志

OA北大核心CSCDCSTPCD

1000-4556

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