Freitag MT, et al. - Here, the clinicians intend to determine the value and reproducibility of a novel magnetic resonance based attenuation correction (MRAC) applying a CAIPIRINHA-accelerated T1-weighted Dixon 3D-VIBE sequence for whole-body PET/MRI compared to the clinical standard. It was concluded that the novel prototype MRACcaipi extends the value for attenuation correction by providing a high spatial resolution DIXON-based dataset suited for diagnostic assessment towards time-efficient whole-body PET/MRI.