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Table 4 Interobserver variability analysis of quantitative vortex parameter measurements

From: Visualization of the intracavitary blood flow in systemic ventricles of Fontan patients by contrast echocardiography using particle image velocimetry

Variables Interobserver variability
Mean difference ± 1.96 SD
VD 0.012 ± 0.078
VS -0.017 ± 0.056
VL -0.007 ± 0.109
VW -0.010 ± 0.058
SI 0.004 ± 0.144
RS -0.003 ± 0.136
VRS 0.020 ± 0.044
VPC 0.005 ± 0.024