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The Ultrasound Journal
Fig. 1 | Critical Ultrasound Journal

Fig. 1

From: Defining the learning curve of point-of-care ultrasound for confirming endotracheal tube placement by emergency physicians

Fig. 1

Ultrasound images of endotracheal and esophageal intubations. Images are generated by placing a high-frequency linear transducer in the transverse position (indicator facing the patient’s right side) at the level of the suprasternal notch. On the left image, a normal endotracheal intubation is shown with the echogenic semicircular tube visible within the lumen of the trachea. On the right image, an esophageal intubation can be identified by the presence of a ‘double tract sign’ with a second semi-circular acoustic shadow appearing outside of the trachea

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