Clinical MR-guided electroanatomic mapping and ablation. a Real-time MR imaging of the electroanatomic mapping and ablation catheter. The passively tracked tip (arrow) is positioned above the cavo-tricuspid isthmus. Post-ablation T2-weighted (b) and late gadolinium enhancement (c) images of the cavo-tricuspid isthmus showing the ablation lesion (arrows). AA ascending aorta, MV mitral valve, RA right atrium, RV right ventricle. (Courtesy of M. Gutberlet, M. Grothoff and G. Hindricks (2014), University of Leipzig, Germany)