The appearance of magnetic susceptibility objects in SWI phase depends on object size: Comparison with QSM and CT.

Purpose: Tissue magnetic susceptibility sign can potentially be detected on susceptibility weighted imaging (SWI) phase (SW-P). This study aims to investigate its performance for depicting brain susceptibility structures.

Methods: A simulation was performed to depict magnetic susceptibility structures of various geometries on SW-P and quantitative susceptibility mapping (QSM).