Conflicts of Interest The authors declare no conflicts of interest. Data Availability Statement The code and data that support the finding of this study are available from the corresponding author upon reasonable request. Supporting Information Filename Description nbm70330-sup-0001-Supplementary_Figure1.pngPNG image, 7.5 MB Figure S1: Visualization results of qualitative reconstruction under 2D variable density random under-sampling of 0.5 T laboratory-collected FLAIR data.