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To introduce the wave‐CAIPI (controlled aliasing in parallel imaging) acquisition and reconstruction technique for highly accelerated 3D imaging with negligible g‐factor and artifact penalties.

The wave‐CAIPI 3D acquisition involves playing sinusoidal and gradients during the readout of each encoding line while modifying the 3D phase encoding strategy to incur interslice shifts as in 2D‐CAIPI acquisitions. The resulting acquisition spreads the aliasing evenly in all spatial directions, thereby taking full advantage of 3D coil sensitivity distribution. By expressing the voxel spreading effect as a convolution in image space, an efficient reconstruction scheme that does not require data gridding is proposed. Rapid acquisition and high‐quality image reconstruction with wave‐CAIPI is demonstrated for high‐resolution magnitude and phase imaging and quantitative susceptibility mapping …