대한의용생체공학회:학술대회논문집 (Proceedings of the KOSOMBE Conference)
- 대한의용생체공학회 1993년도 춘계학술대회
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- Pages.45-48
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- 1993
자기공명분석과 영상촬영을 위한 차폐된 고차경사자계코일의 설계
Shielded High-Order Gradient Coil Design for Magnetic Resonance Spectroscopy and Imaging
- Oh, Chang-Hyun (Department of Medical Electronics, Korea University) ;
- Hilal, Sadek K. (Department of Radiology, Columbia University) ;
- Yi, Yun (Department of Medical Electronics, Korea University) ;
- Kim, Min-Gi (Department of Medical Electronics, Korea University)
- 발행 : 1993.05.14
초록
High-order field gradients are useful for spatial localization of a volume of interest and dynamic range improvement of signal detection in NMR (Nuclear Magnetic Resonance) spectroscopy and imaging. This paper proposes a design method of shielded high-order gradient coils to reduce tile effect of eddy current on tile spectroscopy and imaging results. According to the experimental results, the shielded gradient coils produce less than 2 % eddy current compared to non-shielded coils. Two shielded
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