Secondary outcome measures

Cumulative dose in mg/kg of propofol administered during the procedureNeed of additional bolus of propofol and total dose administered in mgTime to Aldrete score > 9/10 and Chung score > 9/10Length of stay in the post-anesthesia care unit in minutesUpper airway patency when positioning the patient on the MRI table: fixation of inferior jaw to extend the cervical spine, Guedel cannula, laryngeal mask, endotracheal tubeExperience of the anesthesiologist in charge of the patientPremedication’s acceptability using the CHEOPS scaleClassification of MRI images by two radiologists into 2 groups: “without artifact” and “with artifact”