G Angelidis1, I Tsougos1, V Valotassiou1, P Georgoulias2. 1. Department of Nuclear Medicine, Faculty of Medicine, University Hospital of Larissa, University of Thessaly, Mezourlo, 41110, Larissa, Greece. 2. Department of Nuclear Medicine, Faculty of Medicine, University Hospital of Larissa, University of Thessaly, Mezourlo, 41110, Larissa, Greece. research.info@protonmail.ch.