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Table 4 Interclass correlation coefficient between ultrasonography and computed tomography

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

Variable

CT vs. 2-D US

CT vs. 3-D US

Interclass correlation coefficient (95% CI)

Interclass correlation coefficient (95% CI)

Dmax

0.974 (0.959–0.983)

0.992 (0.988–0.995)

Vessel area

0.980 (0.969–0.987)

0.993 (0.989–0.996)

Lumen area

0.906 (0.830–0.949)

0.942 (0.892–0.969)

Thrombus area

0.937 (0.886–0.966)

0.960 (0.926–0.979)

Vessel volume

0.995 (0.991–0.997)

Lumen volume

0.967 (0.942–0.981)

Thrombus volume

0.984 (0.969–0.992)

  1. 2-D US two-dimensional ultrasound, 3-D US three-dimensional ultrasound, CI confidence interval, CT computed tomography, Dmax maximum diameter of the abdominal aorta