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Table 4 Inter- and intra-observer variability by intraclass correlation coefficient

From: A comparison of both DENSE and feature tracking techniques with tagging for the cardiovascular magnetic resonance assessment of myocardial strain

Technique Intra-observer Inter-observer
ICC p value ICC p value
Tagging
 Ecc 0.982 < 0.001 0.909 < 0.001
 Err 0.936 < 0.001 0.307 0.277
 Ell 0.835 0.002 0.700 0.029
DENSE
 Ecc 0.961 < 0.001 0.973 < 0.001
 Err 0.948 < 0.001 0.644 0.027
 Ell 0.761 0.004 0.476 0.122
FT-Tomtec
 Ecc 0.993 < 0.001 0.992 < 0.001
 Err 0.950 < 0.001 0.993 0.000
 Ell 0.938 < 0.001 0.921 < 0.001
FT-CIM
 Ecc 0.935 < 0.001 0.955 < 0.001
 Err 0.864 < 0.001 0.963 < 0.001
 Ell 0.944 < 0.001 0.987 0.000
FT-Circle
 Ecc 0.947 < 0.001 0.865 0.002
 Err 0.849 0.003 0.762 0.018
 Ell 0.910 < 0.001 0.948 < 0.001
  1. Abbreviations: Ecc circumferential strain, Err radial strain, Ell longitudinal strain, ICC intraclass correlation coefficient