Patent ID: 7944209
Filing Date: 2011-05-17
Classification: A61B,G01R

Abstract:
1. A magnetic resonance imaging apparatus comprising: static magnetic field generating means for generating a static magnetic field in an imaging space; measuring means for generating a high-frequency magnetic field and a gradient magnetic field in the imaging space and measuring a nuclear magnetic resonance signal generated from an object to be examined placed in the imaging space; signal processing means for reconstructing a magnetic resonance image based on the nuclear magnetic resonance signal; control means for controlling the measuring means and the signal processing means; and display means for displaying the magnetic resonance image obtained by the signal processing means, characterized in further comprising: storing means for storing a first set of information representing inhomogeneous distribution of the static magnetic field generated depending on the characteristic of the static magnetic field generating means and a second set of information representing inhomogeneous distribution of the static magnetic field generated depending on a tissue of the object; setting means for setting an imaging FOV in a desired region of the object; selecting means, from among the second set of information, for selecting the information corresponding to the set imaging FOV as a third set of information; and correcting magnetic field generating means for generating a correcting magnetic field for correcting the static magnetic field based on the third set of information and the first set of information.