Fig. 3From: Ultrasound-guided identification of the cricothyroid membrane in a patient with a difficult airway: a case reportCervical computed tomography The white arrow indicates the apparent center of the neck. The true center (sagittal line) of the neck is present toward the right side. The ultrasound probe (white trapezoid) is placed perpendicularly to the skin and the ultrasound beam (red dashed arrow) directed to the cricothyroid membrane. The trachea is deviated to the right and rotated to the rightBack to article page