P942X-ray-free 3D-mapping guided catheter ablation of premature ventricular beats is effective and possible in most patients. (20th June 2017) - Baldauf, T.; Vitali-Serdoz, L.; Bastian, D.; Doroshenko, Y.; Ngoli, S.; Walaschek, J.; Schmidt, H.; Rittger, H.; Brunelli, M.