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Table 5 Inter- and intra-observer variability of first-perfusion and tissue tracking

From: Left ventricular subclinical myocardial dysfunction in uncomplicated type 2 diabetes mellitus is associated with impaired myocardial perfusion: a contrast-enhanced cardiovascular magnetic resonance study

  Intra-observer (n = 30) 95% CI Inter-observer (n = 30) 95% CI
ICC ICC
Upslope 0.979 0.957–0.990 0.977 0.952–0.989
TTM (s) 0.987 0.973–0.994 0.983 0.964–0.992
Max SI 0.983 0.965–0.992 0.982 0.962–0.992
PS (%)
 Radial 0.952 0.899–0.977 0.920 0.833–0.962
 Circumferential 0.934 0.862–0.968 0.915 0.823–0.960
 Longitudinal 0.864 0.717–0.935 0.849 0.316–0.948
PSSR (1/s)
 Radial 0.938 0.871–0.970 0.925 0.843–0.964
 Circumferential 0.866 0.720–0.936 0.847 0.596–0.934
 Longitudinal 0.828 0.641–0.918 0.777 0.285–0.913
PDSR (1/s)
 Radial 0.936 0.867–0.969 0.905 0.799–0.955
 Circumferential 0.881 0.751–0.943 0.871 0.732–0.938
 Longitudinal 0.883 0.756–0.944 0.824 0.633–0.916
  1. ICC, intraclass correlation coefficient
  2. All p < 0.001