Regional (A) R2, (B) R2*, (C) R2′ and (D) QSM values corrected for age and volume for healthy controls (blue) and RLS patients (red). CAU: Caudate, DEN: Dentate nuclei, PAL: Pallidum, PUT: Putamen, RN: Red nuclei, SN: Substantia Nigra, STN: Subthalamic Nuclei, THA: Thalamus. *p < 0.05, FDR corrected. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)