[1] Hop Ambroise Pare, APHP, Dept Radiol, Boulogne Billancourt, France
[2] Antoine Lacassagne Canc Res Inst, Dept Head & Neck & Intervent Radiol, Nice, France
[3] Antoine Lacassagne Canc Res Inst, Dept Radiotherapy & Oncol, Nice, France
[4] Ctr Imagerie, Dept Radiol, Aurillac, France