Feasibility and accuracy of a novel automated three-dimensional ultrasonographic analysis system for abdominal aortic aneurysm: comparison with two-dimensional ultrasonography and computed tomography

Table 2 Comparison of maximum diameter, vessel area, and vessel volume

Variable	Overall (n = 77)	Control subjects (n = 18)	Patients with AAA (n = 59)
CT
Dmax, mm	35.4 ± 12.0	18.9 ± 2.5	40.1 ± 9.0
Vessel area, cm²	10.9 ± 7.1	2.4 ± 0.6	13.3 ± 6.2
Vessel volume, cm³	44.4 ± 36.1	2.1 ± 0.5	57.3 ± 31.4
2-D US
Dmax, mm	32.3 ± 12.1	15.0 ± 2.6	37.6 ± 8.3
Vessel area, cm²	10.3 ± 7.1	1.9 ± 0.4	12.8 ± 6.1
3-D US
Dmax, mm	35.1 ± 12.0	19.0 ± 2.7	39.9 ± 9.2
Vessel area, cm²	10.6 ± 7.0	2.1 ± 0.4	13.1 ± 6.7
Vessel volume, cm³	42.4 ± 33.9	1.9 ± 0.4	54.0 ± 29.0

AAA abdominal aortic aneurysm, CT computed tomography, Dmax maximum diameter of the abdominal aorta, 2-D US two-dimensional ultrasonography, 3-D US three-dimensional ultrasonography

ISSN: 1476-7120