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Table 3 Inter- and intra-observer variability

From: Peak longitudinal strain most accurately reflects myocardial segmental viability following acute myocardial infarction - an experimental study in open-chest pigs

Index Inter-observer
variability
Intra-observer
variability
Longitudinal strain 0.76 (0.65–0.84) 0.89 (0.83–0.93)
Circumferential strain 0.77 (0.66–0.84) 0.75 (0.63–0.83)
Radial strain 0.82 (0.72–0.88) 0.86 (0.79–0.91)
  1. Inter- and intra-observer variability as determined by intraclass correlation coefficients with 95% confidence intervals.