Magnetic resonance imaging apparatus and control method of the same

A control method of a magnetic resonance imaging apparatus including a high-frequency magnetic field generation unit configured to generate a high-frequency magnetic field to be applied to an examination target, a gradient magnetic field generation unit configured to generate gradient magnetic fields in three axial directions in a space where the examination target is placed, a measurement unit configured to collect a nuclear magnetic resonance signal generated from the examination target, and an image generation unit configured to generate an image from measurement data consisting of the nuclear magnetic resonance signal collected by the measurement unit, the control method comprising:

• using, as a pulse sequence, a spin echo-based pulse sequence including application of a 90-degree pulse and a 180-degree pulse and used to measure a spin echo from a predetermined cross-section of the examination target, the spin echo-based pulse sequence that is used further including application of a slice gradient magnetic field pulse, a phase encoding gradient magnetic field pulse and a readout gradient magnetic field pulse;
• applying a pair of gradient magnetic field pulses to at least one axis of three axes of the gradient magnetic field before and after the 180-degree pulse, the pair of gradient magnetic field pulses having the same intensity and polarity, in addition to the slice gradient magnetic field pulse, the phase encoding gradient magnetic field pulse and the readout gradient magnetic field pulse, and using varying intensities of the pair of gradient magnetic field pulses to collect measurement data for image reconstruction including the intensities as information for encoding a velocity of a non-stationary portion included in the examination target;
• and
• performing a Fourier transformation on the measurement data for image reconstruction in an encoding direction of the velocity and reconstructing an image.