Distortion-Free, High-Resolution, Free-Breathing Liver DWI Using DW-PROPELLER-EPI with Collaborative Reconstruction

Motivation: Routine free-breathing single-shot liver DWI is limited in geometric fidelity, spatial resolution and signal-to-noise ratio (SNR). Goal(s): To enable high-quality free-breathing liver DWI using DW-PROPELLER-EPI. Approach: A collaborative reconstruction framework for PROPELLER-EPI using POCUMUSE (CORPUSE), which incorporates field map constraints, was used to reconstruct the Free-Breathing liver DW-PROPELLER-EPI data. Results: CORPUSE can enable distortion-free and high-resolution Free-Breathing liver DWI. Impact: DW-PROPELLER-EPI with CORPUSE may benefit applications of liver DWI for challenging population.