Fig. 3From: Airway ultrasound to detect subglottic secretion above endotracheal tube cuffa and b A sagittal view of cervical CT scan showed a subglottic secretions (green watermark) above the ETT cuff (pink watermark) and its relation with other structures; c and d axial views of cervical CT showed subglottic secretions. Ss subglottic secretion; C cricoid cartilage; T thyroid cartilage; ETT endotracheal tubeBack to article page