Intraclass correlation coefficient (ICC, 95% CI) Intraclass correlation coefficient (ICC, 95% CI)
Variables Intra-observer variability Inter-observer variability
TTE 3D annulus area 0.89, 95% CI:0.83-0.93 0.87, 95% CI:0.8-0.92
TTE annulus perimeter 0.93, 95% CI:0.86-0.96 0.78, 95% CI:0.6-0.89
TOE 3D annulus area 0.97, 95% CI:0.94-0.99 0.96, 95% CI:0.89-0.98
TOE annulus perimeter 0.95, 95% CI:0.89-0.98 0.85, 95% CI:0.78-0.9