High-speed imaging by a propeller MRI method is enabled as a whole thanks
to high-speed computation by preventing an aliasing artifact even if the
echoes acquired by one blade are decreased and by reducing the imaging
time and the computational complexity. In a magnetic resonance imaging
apparatus, an RF pulse is applied to a subject placed in a static
magnetic field, a plurality of gradient magnetic fields are applied, and
induced nuclear magnetic resonance signal (echo signal) is received by
means of a multiple RF receiving coil unit composed of two or more RF
receiving coils. A parallel MRI method is applied to echo signals
acquired by reducing the echoes per blade of a propeller MRI method so as
to remove the artifact to produce a reconstructed image. The
reconstructed image is subjected to inverse Fourier transform to return
it to the echo signals in a measurement space corresponding to the blade.
The echo signals are girded in an arbitrarily predetermined coordinate
system for image and combined. Such a processing is conducted for the
echo signals of all the blades. A final image is reconstructed using the
echo signals after the image creation in the coordinate system for image.