Accelerated 4D flow imaging using randomly undersampled echo planer imaging with compressed-sensing reconstruction
نویسندگان
چکیده
Introduction 2D phase contrast (PC) CMR is currently the standard clinical imaging sequence for evaluation of blood flow [1]. Recently, 3D time-resolved PC CMR (4D-PC) has been used for quantification and visualization of blood flow in all three directions of a volume [2]. However, such acquisitions require long scan times (often 10-20 minutes), which reduces its clinical feasibility and leads to motion artifacts. In this study, we sought to investigate an accelerate 4D-PC that combines an efficient data sampling strategy using echo planar imaging (EPI) with a randomly undersampled 3D k-space sampling pattern. The randomly undersampled k-space data are then reconstructed using compressed sensing (CS).
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