3D Imaging Segmentation and 3D Rendering Process for a Precise Puncture Strategy During PCNL - a Pilot Study - Durutović, Otas (Clinic of Urology. University Clinical Centre of Serbia) ; Filipović, Aleksandar (Center for Radiology and Magnetic Resonance Imaging. University Clinical Centre of Serbia) ; Milićević, Katarina (Laboratory for Biomedical Instrumentation and Technologies. Department of Signals and Systems. University of Belgrade. School of Electrical Engineering) ; Somani, Bhaskar (Faculty of Medicine. University Hospital Southampton) ; Emiliani, Esteban (Institut d'Investigació Biomèdica Sant Pau) ; Skolarikos, Andreas (National and Kapodistrian University of Athens. 2nd Department of Urology. Sismanoglio Hospital) ; Janković, Milica M. (Laboratory for Biomedical Instrumentation and Technologies. Department of Signals and Systems. University of Belgrade. School of Electrical Engineering) ; Universitat Autònoma de Barcelona