Image constructing device included in a magnetic resonance imaging apparatus

An image constructing device included in a magnetic resonance imaging apparatus, the device comprising:

• a plurality of magnetic-field generating means for generating a static magnetic field, gradient magnetic fields and a high-frequency magnetic field, the static, gradient and high-frequency magnetic fields being applied to an object to be inspected;
• means for controlling the output of each of the magnetic-field generating means in accordance with a predetermined procedure;
• means for measuring a resonance signal from the to-be-inspected object at a predetermined time under the condition that the strengths of the gradient magnetic fields are changed as the time elapses;
• means for correcting the measures resonance signal by using an image construction algorithm peculiar to each of a plurality of chemical shift components, to obtain a plurality of corrected resonance signals;
• and
• means for constructing tomograms corresponding to the chemical shift components, from the corrected resonance signals.

An image constructing device included in a magnetic resonance imaging apparatus, the device comprising:

• a plurality of magnetic-field generating means for generating a static magnetic field, gradient magnetic fields and a high-frequency magnetic field, the static, gradient and high-frequency magnetic fields being applied to an object to be inspected;
• means for controlling the output of each of the magnetic-field generating means in accordance with a predetermined procedure;
• means for measuring a resonance signal from the to-be-inspected object at a predetermined time under the condition that the strengths of the gradient magnetic fields are changed as time elapses;
• means for correcting the measured resonance signal by using an image construction algorithm peculiar to a predetermined one of a plurality of chemical shift components, to obtain a corrected resonance signal;
• first tomogram-constructing means for constructing a tomogram due to the predetermined chemical shift component, from the corrected resonance signal;
• and
• second tomogram-constructing means for constructing tomograms due to other chemical shift components than the predetermined one, from the tomogram due to the predetermined chemical shift component.