1. A magnetic resonance imaging apparatus comprising: static magnetic resonance generation means configured to generate gradient in the static magnetic field generated by the static magnetic field; high-frequency magnetic field transmission means configured to apply a high-frequency magnetic field to an examination target placed in a static magnetic field; reception means configured to receive the nuclear magnetic resonance signal generated from the examination target; control means configured to control the gradient magnetic field generation means, high-frequency magnetic transmission means and reception means; and signal processing means configured to process the nuclear magnetic resonance signal, wherein: the reception means comprises a first reception coil and a second reception coil having a sensitivity region including the sensitivity region of the first reception coil and is wider than a sensitivity region of the first reception coil; and the control means executes the number of encode steps corresponding to the k-space data while sequentially varying the application amount of a gradient magnetic field, controls acquisition of the data formed by a plurality of nuclear magnetic resonance signals, and alternately switches the receptions by the first reception coil and the second reception coil for every one or more groups of nuclear magnetic resonance signals in at least a part of the encode step.