Investigation and practice of magnetic field homogeneity evaluation methods for MRI equipment / 中国医学影像技术
Chinese Journal of Medical Imaging Technology
;
(12): 1611-1614, 2017.
Artigo
em Chinês
| WPRIM
| ID: wpr-668735
ABSTRACT
Objective To explore the evaluation methods of magnetic field uniformity and the practical operations,in order to provide references for clinical quality control.Methods Based on MRS phantom and 32 cm uniform spherical phantom,the evaluation methods of magnetic field uniformity were used to detect MRI equipment in department of radiology,including spectral peak and the bandwidth difference.Results The full width at half maximum (FWHM) of MRS phantom was 0.08 ppm,the inhomogeneity values on coronal,sagittal and axial detected by the bandwidth difference method was 0.15 ppm,0.08 ppm and 0.18 ppm,respectively.Conclusion The magnetic field homogeneity of the above mentioned MRI equipment is favorable,which accords with magnetic field uniformity detection standard.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Tipo de estudo:
Estudos de avaliação
Idioma:
Chinês
Revista:
Chinese Journal of Medical Imaging Technology
Ano de publicação:
2017
Tipo de documento:
Artigo
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