When a magnetic resonance signal is received more than once, while a table
(transfer unit) is moved, a gradient magnetic field is applied in the
table moving direction, and an application amount (intensity and
application time) of the gradient magnetic field in the table moving
direction is changed every acquisition of data. As for the encoding by
the gradient magnetic field in the table moving direction, a series of
phase encode is performed at different positions of an examination
target, unlike a conventional phase encode. Therefore, the Fourier
transform cannot be applied to the image reconstruction. Given this
situation, a magnetization map of total FOV of the examination target is
determined in such a manner that a sum of the square of an absolute value
of a difference is minimized, the difference between a received signal
and a signal calculated from the magnetization map set as a variable, and
then, the reconstruction is performed. Even when a size of signal
acquisition area in the table moving direction is narrow, the magnetic
resonance imaging apparatus of the present invention is capable of taking
an image of a wide field of view at high speed, by performing the imaging
while the table is moved continuously.