A magnetic resonance imaging method and a magnetic resonance imaging
apparatus are provided, which can obtain a high-quality image at high
speed without obstructions, such as an artifact by a distribution of a
magnetic susceptibility and a myoneural stimulus by an eddy current using
only radio frequency magnetic field (rotating magnetic field) gradients
so as to obtain positional information.
This magnetic resonance imaging apparatus comprises a phase encoding coil
(2x) and a frequency encoding coil (2y) for applying radio frequency
magnetic field gradient pulses to a sample, placed in a static magnetic
field, respectively, in two axial directions which do not include a
static magnetic field direction among three axial directions being
mutually orthogonal, which include the direction of the static magnetic
field as one axis, a detector (21) for detecting a transient nutation
signal generated in the sample, the transient nutation signal being
included in the radio frequency magnetic field gradient pulse obtained
through the frequency encoding coil (2y), and a storage and arithmetic
unit (24) for obtaining a magnetic resonance image of the sample by
storing and arithmetically operating the signal obtained through the
detector.