[1] Morgagni Pierantoni Hosp, Dept Radiol, Via Carlo Forlanini 34, I-47121 Forli, Italy
[2] Fdn Policlin Univ Campus Biomed, Unit Diagnost Imaging, Via Alvaro Portillo 200, I-00128 Rome, Italy
[3] Massachusetts Gen Hosp, Dept Radiol, 55 Fruit St, Boston, MA 02114 USA
[4] Harvard Med Sch, Boston, MA USA
[5] Univ Texas MD Anderson Canc Ctr, Dept Abdominal Imaging, Div Diagnost Imaging, 1400 Pressler St, Houston, TX 77030 USA
[6] Montpellier Canc Res Inst, Dept Radiol, IRCM, F-34090 Montpellier, France
[7] Univ Montpellier, INSERM, U1194, F-34295 Montpellier, France