The wave-CAIPI technique was applied to self-gated dynamic Lung MRI during free breathing. To prevent synchronization between respiratory motion and phase-encoding, the order of the phase-encoding steps was randomized using non-uniformly distributed, two-dimensional random numbers which oversample the k-space center. Breathing motion was gated using an additionally recorded DC signal. A healthy volunteer was investigated using the proposed method and a standard Cartesian scan for reference. For a scan time of 10:46 min, both methods exhibit comparable image quality. However, for accelerated scans, the wave-CAIPI technique clearly shows reduced residual image artifacts after applying parallel imaging.
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