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Table 5 Intra- and interobserver variability

From: Functional measurements based on feature tracking of cine magnetic resonance images identify left ventricular segments with myocardial scar

     Intraobserver variability (one measurement) Interobserver variability (mean of 3 measurements)
  ICC P Median Smethod (absolute) Smethod (% of mean) Smethod (absolute) Smethod (% of mean)
Displacement, mm        
   Radial 0.93 <0.001 7.1 0.75/0.74/0.75 11/16/8 0.62/0.61/0.64 9/13/7
   Longitudinal 0.90 <0.001 3.4 1.16/0.83/1.41 27/49/20 0.78/0.47/0.99 18/28/14
Velocity, cm/s        
   Radial 0.90 <0.001 3.4 0.39/0.33/0.43 12/14/10 0.29/0.28/0.29 9/12/7
   Longitudinal 0.79 <0.001 2.3 0.71/0.46/0.90 28/33/24 0.47/0.27/0.61 19/19/17
Strain, %        
   Radial 0.74 <0.001 55.4 10.9/9.0/12.5 21/26/18 7.4/6.5/8.2 14/18/12
   Longitudinal 0.77 <0.001 -17.0 4.6/3.5/5.4 26/33/22 2.7/2.5/2.9 15/23/12
  1. Intraobserver variability expressed in terms of intraclass correlation coefficient and intra- and interobserver variability according to Dahlberg as absolute and relative values (all values/below median/above median).