Fig. 1.

a Subxiphoid left paramedian longitudinal section with a low-frequency convex transducer, using the left hepatic lobe (LHL) as a window, showing a pulsatile and anechogenic tubular image, supported on the vertebral bodies, corresponding to the aorta. From the ventral face, the celiac trunk emerges first, and then the superior mesenteric artery runs parallel to the aorta shortly after emerging, following the aorta to the aortic bifurcation. b The aorta should be followed distally until the aortic bifurcation