Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)
- Volume 1993 Issue 11
- /
- Pages.33-35
- /
- 1993
Low-Power Design of the Surface Gradient Coil for Magnetic Resonance Imaging
자기공명영상촬영을 위한 표면경사자계코일의 저전력 설계
- Oh, Chang-Hyun (Department of Medical Electronics, Korea University) ;
- Lee, Jong-Kwon (Department of Medical Electronics, Korea University) ;
- Yi, Yun (Department of Medical Electronics, Korea University) ;
- Kim, Min-Gi (Department of Medical Electronics, Korea University)
- 오창현 (고려대학교 자연과학대학 의용전자공학과) ;
- 이종권 (고려대학교 자연과학대학 의용전자공학과) ;
- 이윤 (고려대학교 자연과학대학 의용전자공학과) ;
- 김민기 (고려대학교 자연과학대학 의용전자공학과)
- Published : 1993.11.12
Abstract
A new low-power, high-order optimization scheme to design surface gradient coils (SGC) is proposed for magnetic resonance imaging (MRI). Although previous SGCs have been designed and constructed just to get strong linear gradients, this paper proposes more systematic ways of SGC design by minimizing electrical power consumption in the gradient coil and by removing unnecessary high-order field distortions in the imaging region. By assuming continuous current flow on the coil surface which may be or may not be planar, power consumption in the coil is minimized. According to the simulation results, the SGC designed by using the proposed scheme seems to produce much more uniform linear gradient field using less electrical power compared to the previously proposed SGCs.
Keywords