Magnetic resonance imaging apparatus and imaging method in the same

A magnetic resonance imaging apparatus comprising:

• an imaging unit applying a gradient magnetic field and a radio frequency pulse to an inspection body in an magnetostatic field and generating a magnetic resonance signal;
• a bed having a top panel for placing the inspection body thereon and sliding the top panel in a longitudinal direction;
• a radio frequency coil for detecting the magnetic resonance signal;
• a display unit displaying a positioning image;
• a determining unit determining a plurality of ROIs (a region of interest), the size of each of which is smaller than that of an available FOV (a field of view) defined by the magnetostatic field, on the basis of designation on the positioning image;
• a moving unit moving at least one of the ROIs on the basis of the designation on the positioning image and moving an ROI other than the moved ROI to be in a predetermined state with respect to the moved ROI;
• a fixing unit fixing the plurality of ROIs;
• and
• a control unit controlling the imaging unit, the bed, and the radio frequency coil so as to perform an imaging operation on each of the ROIs fixed by the fixing unit.

An imaging method in a magnetic resonance imaging apparatus having an imaging unit applying a gradient magnetic field and a radio frequency pulse to an inspection body in an magnetostatic field and generating a magnetic resonance signal, a bed having a top panel for placing the inspection body thereon and sliding the top panel in a longitudinal direction, a radio frequency coil for detecting the magnetic resonance signal, and a display unit displaying a positioning image, the method comprising:

• determining an ROI (a region of interest) on the basis of designation of the positioning image;
• comparing the ROI with an available FOV (a field of view) defined by the magnetostatic field;
• calculating a plurality of FOVs including the ROI when it is determined that the size of the ROI is greater than that of the available FOV;
• and
• controlling the imaging unit, the bed, and the radio frequency coil so as to perform an imaging operation on each of the FOVs.

An imaging method in a magnetic resonance imaging apparatus having an imaging unit applying a gradient magnetic field and a radio frequency pulse to an inspection body in an magnetostatic field and generating a magnetic resonance signal, a bed having a top panel for placing the inspection body thereon and sliding the top panel in a longitudinal direction, a radio frequency coil for detecting the magnetic resonance signal, and a display unit displaying a positioning image, the method comprising:

• determining a plurality of ROIs (a region of interest), the size of each of which is smaller than that of an available FOV (a field of view) defined by the magnetostatic field, on the basis of designation on the positioning image;
• moving at least one of the ROIs on the basis of the designation on the positioning image and moving an ROI other than the moved ROI to be in a predetermined state with respect to the moved ROI;
• fixing the plurality of ROIs;
• and
• controlling the imaging unit, the bed, and the radio frequency coil so as to perform an imaging operation on each of the fixed ROIs.