Abstract：Objective To provide references for the developing of MRI equipment in China by analyzing and comparing the
components of domestic and imported MRI equipment. Methods The main component information of MRI equipment from nine
manufacturers, two kinds of field intensity and 14 types was obtained, and the performance parameters, functional configurations,
and localization rates between the domestic and imported MRI equipment were compared. Results In terms of performance
parameters, the domestic and imported MRI equipment were almost at the same level. In terms of functional configuration, the
domestic MRI equipment only realized the basic function, while the imported equipment provided higher functional configurations.
For the components of MRI equipment with 1.5 T, the localization rates of the imported and domestic equipment were 73.08% and
47.69% respectively, with significant difference (χ2=7.694, P=0.006). However, for the components of MRI equipment with 3.0 T,
the localization rates of the imported and domestic equipment were 73.08% and 53.85% respectively, with no significant difference
(χ2=1.016, P=0.314). Conclusion The imported and domestic MRI have similar performance in the performance parameters of main
components. However, there is still a gap between domestic and imported MRI equipment in the research and development ability of
main components and the configuration of advanced functions.
