1 Radiology Unit, Oncology Department, San Luigi Gonzaga Hospital, University of Torino, Regione Gonzole, 10, 10043, Orbassano, Turin, Italy. andrea.veltri@unito.it.
2 Department of Interventional Radiology, Pisa University Hospital, Via Paradisa 2, 56100, Pisa, Italy.
3 Angiography Section, Radiology Department, Hospital S. Teotónio, Viseu, Portugal.
4 Department of Radiology, Faculty of Medicine, Hacettepe University, 06100, Ankara, Turkey.