The invention relates to a method for magnetic resonance imaging (MRI) of
at least a portion of a body placed in a stationary and substantially
homogeneous main magnetic field. The method comprises the steps of
subjecting the body to a diffusion-weighting sequence (DW1), generating a
train of M echoes (E1, E2, E3, E4, E5) by an imaging sequence (EPI1), and
measuring this train of MR echoes. These steps are repeated until a
complete imaging data set with a sufficient number of phase-encoding
steps is measured. Thereafter, the imaging data set is corrected for
macroscopic motions by means of an individual phase-correction of each
train of MR echoes. Finally, an image is reconstructed from the imaging
data. In order to provide a method for diffusion-weighted imaging, which
requires a minimum additional measurement time for determining the phase
errors of the imaging signals and which also guarantees a robust
compensation of image artifacts caused by macroscopic motions of the body
of the examined patient, the invention suggests to select the
phase-encoding scheme of the imaging sequence such that each train of MR
echoes (E1, E2, E3, E4, E5) comprises at least one initial MR navigator
echo (E1), which forms and integral part of the imaging data set, wherein
the phase-correction is derived from the MR navigator echo.