Planning principles analysis of 7T MRI room / 医疗卫生装备

ABSTRACT

Objective To draw up a plan for 7T MRI room based on analyzing its features.Methods 3T and 7T MRI machines were compared from the aspects of weight,installation,transport space requirement,dynamic interference and magnetic field distribution.The data related to 7T MRI were studied to plan the room rationally.Results When compared with 3T MRI,7T MRI had the weight increased by 4 to 6 times,the volume raised by 30％,more dynamic interference and irregular magnetic field distribution.The ground bearing of 7T room was higher than 40 t,the minimum installation space was larger than 54 m2,and shielding was executed by ferro-magnetic structure internally and by radio externally.Conclusion 7T MRI poses high requirements on the room,and plans have to be made at advance.