Non-Rigid Motion-Compensated MR Multitasking for Free-Breathing Low-Dose Dynamic Contrast-Enhanced MRI in the Abdomen.
PURPOSE To improve free-breathing low-dose quantitative dynamic contrast-enhanced (DCE) MRI for imaging pancreatic ductal adenocarcinoma. METHODS We introduced non-rigid (NR) motion compensation (MoCo) into MR Multitasking using a novel "in-subspace" formulation that directly applies motion fields to spatial feature...