FIGURE 1. En Face View of the Right Abdominal Aorta as Seen From the Aorta.
This view is helpful to identify calcium-free targets. (A) Non-circumferentially calcified window measuring 5 × 10 mm (upper arrow) and circumferentially calcified window measuring 7 × 4 mm (lower arrow). (B) Porcelain abdominal aorta with no suitable calcium-free regions.