1. 3DMI Research Group, Department of Medical Physics, School of Medicine, University of Patras, Rion, Greece.
2. Department of Electrical Engineering, Aragon Institute of Engineering Research, IIS Aragon, University of Zaragoza, Zaragoza, Spain.
3. R&D Department, Bioemission Technology Solutions, Athens, Greece.
4. Department of Nuclear Medicine, School of Medicine, University of Patras, Rion, Greece.
5. Department of Radiology, School of Medicine, University of Patras, Rion, Greece.
6. Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
7. LaTIM, INSERM, UMR1101, Brest, France.