1 Department of Medical, Surgical and Neuro Sciences, Diagnostic Imaging, University of Siena, Azienda Ospedaliera Universitaria Senese, Viale Bracci 10, 53100, Siena, Italy.
2 Department of Radiological Sciences, Diagnostic Imaging Unit, Azienda Ospedaliera Universitaria Senese, Viale Bracci 10, 53100, Siena, Italy. guerrinisus@gmail.com.
3 Department of Radiological Sciences, Diagnostic Imaging Unit, Azienda Ospedaliera Universitaria Senese, Viale Bracci 10, 53100, Siena, Italy.