Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Sine Scan Inhomogeneity Field Mapping using Multiple Echo

다중 Echo를 이용한 Single Scan Inhomogeneity Field Mapping

  • Kim, C.Y. (Dept. of Electrical Engineering, Kwangwoon University) ;
  • Han, S.Y. (Dept. of Electrical Engineering, Kwangwoon University) ;
  • Jung, K.W. (Medison MRI Research Institute) ;
  • Oh, C.H. (Dept. of Electronic and Information Engineering, Korea University) ;
  • Yi, Y. (Dept. of Electronic and Information Engineering, Korea University) ;
  • Ahn, C.B. (Dept. of Electrical Engineering, Kwangwoon University)
  • 김치영 (광운대학교 공과대학 전기공학과) ;
  • 한수영 (광운대학교 공과대학 전기공학과) ;
  • 정관진 (메디슨 MRI 연구소) ;
  • 오창현 (고려대학교 전자 및 정보공학부) ;
  • 이윤 (고려대학교 전자 및 정보공학부) ;
  • 안창범 (광운대학교 공과대학 전기공학과)
  • Published : 1998.11.20
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Abstract

In this paper, we describe a field measurement technique using multiple gradient echo method. For this purpose, 3 differential phase map is used between two images obtained in a single scan. The phase map is further processed to unfold phase folding (2n $\pi$). The inhomogeneity map is used to correct image distortion along readout gradient direction. Some experimental results obtained at 1.0 Tesla whole body MR system are shown with the proposed technique.

Keywords