대한의용생체공학회:학술대회논문집 (Proceedings of the KOSOMBE Conference)
- 대한의용생체공학회 1996년도 추계학술대회
- /
- Pages.157-160
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- 1996
Spiral scan 초고속 자기공명영상 재구성 알고리즘
Reconstruction Algorithms for Spiral-scan Echo Planar Imaging
-
안창범
(광운대학교 전기공학과)
;
- 김치영 (광운대학교 전기공학과) ;
- 박대준 (광운대학교 전기공학과) ;
- 김휴정 (광운대학교 전기공학과) ;
- 유완석 (광운대학교 전기공학과) ;
- 이윤 (고려대학교 전자공학부) ;
-
오창현
(고려대학교 전자공학부)
;
-
이흥규
(메디슨)
-
Ahn, C.B.
(Dept. Electrical Engineering, Kwangwoon University)
;
- Kim, C.Y. (Dept. Electrical Engineering, Kwangwoon University) ;
- Park, D.J. (Dept. Electrical Engineering, Kwangwoon University) ;
- Kim, H.J. (Dept. Electrical Engineering, Kwangwoon University) ;
- Ryu, Y.S. (Dept. Electrical Engineering, Kwangwoon University) ;
- Yi, Y. (Electronic Engineering, Korea University) ;
-
Oh, C.H.
(Electronic Engineering, Korea University)
;
-
Lee, H.K.
(Medison)
- 발행 : 1996.11.15
초록
In this paper, reconstruction algorithms of spiral scan imaging which has been used for ultra fast magnetic resonance imaging have been reviewed, and some simulation results using two different algorithms are reported. Since the trajectory of the spiral scan in k-space is the spiral, reconstruction of the spiral scan is not as straight forward as that used in Fourier imaging technique where the sampling points are usually on the rectangular grids. Originally the reconstruction of the spiral scan imaging was based on the convolution backprojection algorithm modified with a shift term, however, some other reconstruction techniques have also been tried by remapping sampling points from spiral trajectory to Cartesian grids. Some experimental aspects of MR spiral scan imaging will also be addressed.
키워드