Figure 3: Distribution of the measured RV-and LV-endocardial global longitudinal strain (EndoGLS) values of both operators: a: RV-EndoGLS; b: LV-EndoGLS. RV = Right ventricle; LV = Left ventricle.
The statistical analysis for endoGLS showed a Bland-Altman-Bias of -4.24 pp (standard deviation (SD) of bias: 8.06 pp; 95% confidence interval (CI) from -1.50 % to -6.97 %) and 95% Limits of Agreement (LoA) from -20.04 % (LoA-, 95% CI from -15.31 % to -24.78 %) to 11.57 % (LoA+, 95% CI from 16.30 % to 6.83 %) for the right and -3.21 pp (SD of bias: 7.11 pp; 95% CI from -0.80 % to -5.62 %) and 95% LoAs from -17.14 % (LoA-, 95% CI from -12.96 % to -21.31 %) to 10.71 % (LoA+, 95% CI from 14.89 % to 6.54 %) for the left ventricle (Table 4, Figure 4).