Fig. 5From: Ultrasonography for clinical decision-making and intervention in airway management: from the mouth to the lungs and pleuraeOesophagus and trachea. Transverse scan just cranial to the suprasternal notch and to the patient’s left side of the trachea. Anterior part of tracheal cartilage (dark blue); oesophagus (yellow); carotid artery (red). Below the tissue/air border in the trachea only artefacts are seen (white)Back to article page