Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Reduction of Susceptibility Effect Using Frequency Modulation DANTE

주파수 변조 DANTE를 이용한 자화율 효과의 감소

  • Chung, S.T. (Dept. of Information & communication Engineering, KAIST) ;
  • Hong, I.K. (Dept. of Information & communication Engineering, KAIST) ;
  • Kim, J.H. (Dept. of Information & communication Engineering, KAIST) ;
  • Ro, Y.M. (Dept. of Computer Engineering, Taejon University) ;
  • Cho, Z.H. (Dept. of Information & communication Engineering, KAIST)
  • 정성택 (한국과학기술원 정보 및 통신공학과) ;
  • 홍인기 (한국과학기술원 정보 및 통신공학과) ;
  • 김지훈 (한국과학기술원 정보 및 통신공학과) ;
  • 노용만 (대전대학교 컴퓨터 공학과) ;
  • 조장희 (한국과학기술원 정보 및 통신공학과)
  • Published : 1995.11.17
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Abstract

An frequency modulated (FM) DANTE pulse sequence generates a quadratic phase toward the transverse of image by an FM RF pulse. In the image of a serious susceptibility effect, the phase due to the difference of the susceptibility in the pixel occurs susceptibility error which arise signal loss. But the signal loss due to the susceptibility effect in the pixel is reduced when the quadratic phase adds in the pixel. In this paper, we have generated a quadratic function toward the transverse (X-Y) using FM DANTE sequence and the susceptibility effect is reduced in the gradient echo (GE) imaging. Computer simulation and experimental results is obtained by using a whole-body KAIS 2.0T NMR system.

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