[1] Hosp Grp Lyon, Hosp Civils Lyon, Serv ORL & Chirurg Cervicofaciale, Croix Rousse Hosp,Dept Otolaryngol Head & Neck Su, 103 Grande Rue Croix Rousse, F-69004 Lyon, France
[2] Hosp Grp Lyon, Hosp Civils Lyon, Dept Radiol, Lyon Sud Hosp, 165 Chemin Grand Revoyet, F-69310 Pierre Benite, France
[3] Hosp Grp Lyon, Hosp Civils Lyon, Dept Anesthesiol & Resuscitat, Croix Rousse Hosp, 103 Grande Rue Croix Rousse, F-69004 Lyon, France
[4] Claude Bernard Univ, Lyon 1, France