대한의용생체공학회:학술대회논문집 (Proceedings of the KOSOMBE Conference)

대한의용생체공학회 (The Korean Society of Medical and Biological Engineering)
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새로운 자기공명영상촬영용 Quadrature Breast RF 코일

A New Quadrature Breast RF Coil for MRI

  • 김선경 (고려대학교 전자 및 정보공학부) ;
  • 양윤정 ((주)메디슨) ;
  • 이덕래 (고려대학교 전자 및 정보공학부) ;
  • 이윤 (고려대학교 전자 및 정보공학부) ;
  • 안창범 (광운대학교) ;
  • 오창현 (고려대학교 전자 및 정보공학부)
  • Kim, S.K. (Department of Electronics and Information Engineering, Korea University) ;
  • Yang, Y.J. (Medison Ltd.) ;
  • Lee, D.R. (Department of Electronics and Information Engineering, Korea University) ;
  • Yi, Y. (Department of Electronics and Information Engineering, Korea University) ;
  • Ahn, C.B. (Kwang-woon University) ;
  • Oh, C.H. (Department of Electronics and Information Engineering, Korea University)
  • 발행 : 1997.11.28
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초록

A new quadrature RF coil is designed for Breast MR Imaging. Quadrature RF coils for MRI have been useful to improve the signal-to-noise ratio (SNR) by "$\sqrt{2}$" using two orthogonal RF coils in combination. A modified Breast Quadrature coil is designed. It is a modified type of the high-pass birdcage coil. To reduce the field distortion, by using current feeding, the field pattern is optimized to achieve a quadrature circularly-polarized field pattern. The coil has been implemented for receive-only mode, and tested by phantom imaging. The experimental results show the utility of the proposed RF coil.

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