Figure 4.

After activating the OmniView option, the following images are generated by drawing three lines through the longitudinal view of the ductal arch image from top to bottom. A. Three-vessels and trachea view: Line 1 (yellow) is a diagonal line drawn through the center of the pulmonary artery parallel to and equidistant from the walls, until it reaches the level of the descending aorta or below. Once Line 1 is completed, it is locked into place by clicking the mouse. The pulmonary artery, aorta, superior vena cava, and trachea are visualized. B. Five-chamber view: Line 2 (fuchsia) is a vertical line (6 o’clock) drawn through the right ventricle, center of the aorta (cross-section), left atrium, and descending aorta. Once Line 2 is completed, it is locked into place by clicking the mouse. C. Four-chamber view: Line 3 (turquoise) is a vertical line (6 o’clock) drawn through the right ventricle, right external edge of the aorta (cross-section), left atrium, and descending aorta. Once Line 3 is completed, it is locked into place by clicking the mouse. When the three lines are completed, the three-vessels and trachea view, five-chamber view, and four-chamber view will be simultaneously visualized (along with the original longitudinal view of the ductal arch/pulmonary artery).