Fig. 1

The aortic root size in patients with and without AAA. The aortic root size was significantly larger in patients with AAA than those without (36.0 ± 4.1 vs. 31.7 ± 4.2 mm, p < 0.001). All patients with AAA had the aortic root size of ≥ 28 mm. AAA = abdominal aortic aneurysm