1. Department of Radiology, Interventional Ultrasound, Institute of Care IGEA, Milan, Italy;
2. Department of Radiology, University of Wisconsin, Madison, Wisconsin, USA;
3. Department of Internal Medicine, Caritas Krankenhas Bad Mergentheim, Bad Mergentheim, Germany;
4. Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy;
5. Department of Electronics, Information and Bioengineering, Politecnico Milano, Milan, Italy;
6. Department of Radiology, San Paolo Hospital, University of Milan, Milan, Italy