Automated left atrial strain analysis for predicting atrial fibrillation in severe COVID-19 pneumonia: a prospective study

Annals of Intensive Care

Table 5 Reproducibility of LA strain analysis with an automated software

LA strain parameters	ICC for inter-operator	95% CI	ICC for intra-operator	95% CI
LASr	0.97	0.84–0.99	0.96	0.84–0.99
LAScd	0.86	0.52–0.96	0.94	0.78–0.98
LASct	0.89	0.74–0.98	0.90	0.61–0.97

CI confidence interval, ICC intraclass correlation coefficient, LA left atrial, LAScd left atrial strain during conduit phase, LASct left atrial strain during contraction phase, LASr left atrial strain during reservoir phase