Quantitative T1 mapping in the liver is an emerging biomarker of hepatic fibrosis and characterization of liver function. The variable flip angle approach with Cartesian sampling is among the most popular T1 mapping methods used in the abdomen. A major drawback of this approach is that T1 estimations are highly sensitive to B1 inhomogeneities. Furthermore, Cartesian sampling suffers from motion related ghosting artifacts and requires breath-holding acquisitions. In this study, we propose to combine stack-of-stars radial sampling with dual-echo inversion recovery (IR-SoS) MRI for confounder corrected T1 mapping in the abdomen.