Development of Quadrature Detection Surface Coil for Functional Magnetic Resonance Imaging at 3T MRI System

  • Chu, Myung-Ja (Departments of Biomedical Engineering, College of Medicine, The Catholic University of Korea) ;
  • Choe, Bo-Young (Departments of Biomedical Engineering, College of Medicine, The Catholic University of Korea) ;
  • Kim, Kyung-Nam (Medinus Co. LTD.) ;
  • Chung, Sung-Taek (Medinus Co. LTD.) ;
  • Oh, Chang-Hyun (Department of Electronics and Information Engineering, Korea University) ;
  • Lee, Hyoung-Koo (Departments of Biomedical Engineering, College of Medicine, The Catholic University of Korea) ;
  • Suh, Tae-Suk (Departments of Biomedical Engineering, College of Medicine, The Catholic University of Korea)
  • Published : 2002.09.01

Abstract

We describe quadrature type surface coil for functional magnetic resonance imaging at 3T MRI system. The coil consisted of two coplanar resonators and was used as both transmitter and receiver. The signal-to-noise ratio (SNR) of the coil was compared with that of a standard birdcage head coil. Visual cortex activation on normal subjects using LED flicker was performed. The SNR of surface coil was found to be better than that of the conventional head coil.

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