A post-processing method based on interphase motion correction and averaging to improve image quality of 4D magnetic resonance imaging: a clinical feasibility study

摘要

Objective: Four-dimensional MRI (4D-MRI) has been increasingly used in radiation therapy. Developments in k-space sorted 4D-MRI methods have shown advantage over conventional image sorted 4D-MRI methods. However, this type of technique tends to suffer from undersampling image artifacts. This study aims to conduct an initial clinical feasibility study of a post-processing method, denoted as MoCoAve, to overcome the limitation.