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Table 6 Bland Altman analysis for comparison between CMR tagging and feature tracking

From: Global and regional left ventricular myocardial deformation measures by magnetic resonance feature tracking in healthy volunteers: comparison with tagging and relevance of gender

  CMR Tagging vs. FT agreement
  Global Basal Mid Apical
Variable Bias LOA Bias LOA Bias LOA Bias LOA
Longitudinal Strain −0.01 −0.16 to 0.03 −0.06 −0.19 to 0.06 −0.05 −0.21 to 0.11 0.04 −0.12 to 0.20
Longitudinal Strain Rate (s-1) −0.22 −0.82 to 0.37 0.01 −0.16 to 0.19 0.03 −0.05 to 0.12 −0.02 −0.12 to 0.07
Radial Strain 0.11 −0.01 to 0.23 0.12 0.03 to 0.23 0.12 −0.05 to 0.30 0.08 −0.13 to 0.30
Radial Strain Rate (s-1) 0.26 −0.34 to 0.86 0.20 −0.71 to 1.11 0.41 −0.32 to 1.16 0.17 −0.83 to 1.16
Circumferential Strain −0.007 −0.06 to 0.04 −0.05 −0.14 to 0.04 0.02 −0.04 to 0.07 0.009 −0.05 to 0.07
Circumferential Strain rate (s-1) −0.21 −0.53 to 0.11 −0.44 −1.09 to 0.21 −0.07 −0.42 to 0.27 −0.12 −0.50 to 0.25
  1. CMR indicates cardiac magnetic resonance; FT, feature tracking; LOA, limits of agreement; s, seconds.