Figure Legends
Figure 1. Tracheal Sweep: right-to-left sweep from suprasternal notch view of left aortic arch. 1a & 1b: Starting from patient’s right the superior vena cava (SVC), inferior vena cava (IVC), and right atrium (RA) are demonstrated with the right pulmonary artery (RPA) and right upper pulmonary vein (RUPV) crossing behind SVC. 2a & 2b: The echo-bright trachea comes into view with the ascending aorta (Ao), the innominate vein (Inom) is anterior, and the RPA is seen in cross section behind the ascending Ao. 3a & 3b: The transverse Ao comes into view completing the right-to-left sweep.