A RF Transmit Coil Designed for Open Magnetic Resonance Imaging

Chinese Journal of Magnetic Resonance ›› 2012, Vol. 29 ›› Issue (3): 354-360.

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A RF Transmit Coil Designed for Open Magnetic Resonance Imaging

WEI Shu-Feng^1,2, YANG Wen-Hui^1*, GUO Li-Hui^1,2, WANG Hui-Xian¹

1. Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China; 
2. Graduate School of the Chinese Academy of Sciences, Beijing 100049, China

Received:2012-01-09 Revised:2012-02-24 Online:2012-09-05 Published:2012-09-05
Supported by:
国家自然科学基金青年科学基金资助项目(50807050).

Abstract

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.

Key words: MRI, RF transmit coil, vertical field, numerical simulation of electromagnetic fields

CLC Number:

O482.53

WEI Shu-Feng, YANG Wen-Hui, GUO Li-Hui, WANG Hui-Xian. A RF Transmit Coil Designed for Open Magnetic Resonance Imaging[J]. Chinese Journal of Magnetic Resonance, 2012, 29(3): 354-360.

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A RF Transmit Coil Designed for Open Magnetic Resonance Imaging

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