A new first order peak location shimming method / 中国医学影像技术
Chinese Journal of Medical Imaging Technology
; (12): 2290-2293, 2009.
Article
em Zh
| WPRIM
| ID: wpr-471431
Biblioteca responsável:
WPRO
ABSTRACT
Objective To develop a fast shimming method for permanent magnet MRI system. Methods Peak location method (PLM) was improved by calculating the eddy current effect, and the time deviation was replaced by their phase to increase the precision. Results Experiment showed that the new method took less than 45 s, which was 3 times faster than conventional method while providing the same homogeneity. The result of PLM satisfied the requirement of homogeneity. Conclusion This new method can significantly improve the homogeneity in a short time and satisfy further fast pulse sequence development on 0.5T permanent magnet MRI system, which can be generalized for any permanent magnet first order shimming.
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Índice:
WPRIM
Idioma:
Zh
Revista:
Chinese Journal of Medical Imaging Technology
Ano de publicação:
2009
Tipo de documento:
Article