Multishot variable density spiral is an efficient sequence for diffusion imaging with the oversampled k-space center serving as a navigator. However, the shot-to-shot phase variation of multishot acquisition due to motion must be corrected. To improve the reconstruction accuracy, we propose a novel reconstruction framework using SPIRiT-based reconstruction, integrating the information of phase variation and coil sensitivity in order to correct for the ghosting artifacts of multi-shot DWI. Both simulation and in-vivo experiment validated the superior performance of the proposed method to reconstruct more accurate images than CG-SENSE for VDS DWI.
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