Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Localized MR Imaging Technique by Using Locally-Linear Gradient Field

부분적 경사자계를 이용한 국부자기공명 영상촬영기법

  • Yang, Y.J. (Department of Applied Electronics, Korea University) ;
  • Lee, J.K. (Department of Applied Electronics, Korea University) ;
  • Jeong, S.T. (Department of Information and Communications Engineering, KAIST) ;
  • Cho, Z.H. (Department of Information and Communications Engineering, KAIST) ;
  • Oh, C.H. (Department of Applied Electronics, Korea University)
  • 양윤정 (고려대학교 자연과학대학 응용전자공학과) ;
  • 이종권 (고려대학교 자연과학대학 응용전자공학과) ;
  • 정성택 (한국과학기술원 서울분원 정보 및 통신공학과) ;
  • 조장희 (한국과학기술원 서울분원 정보 및 통신공학과) ;
  • 오창현 (고려대학교 자연과학대학 응용전자공학과)
  • Published : 1995.11.17
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Abstract

A new localized imaging technique of reduced imaging time using a locally-linear gradient is proposed. Since most fast MR imaging methods need the whole k-space data corresponding to the whole imaging area, there are limitations in reducing the minimum imaging time. The imaging method proposed in this paper uses a specially-made gradient coil generating a local ramp-shape field and uniform field outside of the imaging area. Conventional imaging sequences can be used without any RF/gradient pulse sequence modifications. The proposed localized imaging technique has been implemented on a 2.0 Tesla whole-body system at KAIST and the imaging results show the utility of the proposed technique.

Keywords