Patent ID: 8040134

Claim:
A magnetic resonance imaging device comprising magnetostatic field generating means for generating magnetostatic field in an imaging space in which an examinee is disposed, gradient magnetic field generating means for generating gradient magnetic field in the imaging space, high frequency magnetic field generating means for generating high frequency magnetic field in the imaging space, receiving means for detecting a nuclear magnetic resonance signal generated from the examinee, image creating means for creating an image by using the nuclear magnetic resonance signal detected by the receiving means, and control means for controlling the magnetostatic field generating means, the gradient magnetic field generating means, the high frequency magnetic field generating means and the receiving means according to a predetermined pulse sequence, the predetermined pulse sequence containing an unnecessary material suppressing sequence unit for suppressing signals from unnecessary materials which are not measurement targets, and a main imaging sequence unit for measuring a nuclear magnetic resonance signal used to create the image of the examinee, wherein the unnecessary material suppressing sequence unit generates at least two or more RF magnetic field pulses whose flip angles are adjusted so that longitudinal magnetization of the unnecessary materials is spatially uniform in the imaging space before and when a first high-frequency magnetic field pulse is applied in the main imaging sequence unit.