Pilot Feasibility Study of Laryngeal Ultrasound in the Paediatric Population - ECHO LARYNX

laryngeal ultrasound with linear probe will be positioned on the patient's neck. A list of anatomical sites to be visualised will be determined beforehand. Once all the pre-determined structures have been visualised, in an axial and sagittal plane, we will note the position of the ultrasound probe and its orientation. This will enable us to determine the ideal position of the ultrasound probe for obtaining all the elements of interest on a section that will be called the reference section.