The invention relates to a device for MRI of a body (7) placed in an examination volume. The device (1) comprises means (2) for establishing a substantially homogeneous main magnetic field in the examination volume, means (3, 4, 5) for generating switched magnetic field gradients superimposed upon the main magnetic field, means (6) for radiating RF pulses towards the body (7), control means (12) for controlling the generation of the magnetic field gradients and the RF pulses, means (10) for receiving and sampling MR signals, and reconstruction means (14) for forming MR images from the signal samples. According to the invention, the device (1) is arranged to generate a series of MR signals by subjecting at least a portion of the body (7) to an MRI sequence, to acquire the MR signals as a plurality of k-space blades according to the PROPELLER scheme, to compute phase errors from the phase differences of pairs of k-space blades having different rotation angles, to perform a phase correction of the acquired k-space blades on the basis of the computed phase errors, and to reconstruct an MR image from the acquired and phase-corrected MR data set.