Reducing Streaking Artifacts in Quantitative Susceptibility Mapping
  It is well-known that reconstruction algorithms in quantitative susceptibility mapping often contain streaking artifacts. In [1], the cause of the artifacts is identified as propagation of singularities. In this work, we analyze such singularities carefully and propose some strategies to reduce the artifacts. 
Benjamin Palacios, Gunther Uhlmann, and Yiran Wang
math.AP