1. Department of Otolaryngology–Head and Neck Surgery, Rennes University Hospital, Rennes, France
2. Department of Nuclear Medicine, Centre Eugène Marquis, Rennes, France
3. University of Applied Sciences and Arts Western Switzerland, Lausanne, Switzerland
4. LTSI (Image and Signal Processing Laboratory), INSERM, U1099, Rennes, France
5. Department of Radiation Oncology, Cancer Institute Eugène Marquis, Rennes, France