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Table 2 Feature Tracking, interobserver and intraobserver coefficient of variation

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

  Global Basal Mid Apical
  FT Interobserver agreement FT Intraobserver agreement FT Interobserver agreement FT Intraobserver agreement FT Interobserver agreement FT Intraobserver agreement FT Interobserver agreement FT Intraobserver agreement
Longitudinal Strain 10.9 12.3 10.8 17.7 17.5 17.7 31.3 42.7
Longitudinal Strain Rate 16.2 16.0 34.3 19.2 21.1 17.8 25.6 23.2
Radial Strain 32.3 22.9 13.5 48.5 26.3 14.8 29.1 23.9
Radial Strain Rate 14.9 15.6 15.8 14.1 27.2 11.3 31.3 30.2
Circumferential Strain 4.9 2.8 3.2 6.0 4.5 6.4 9.2 6.0
Circumferential Strain rate 7.9 6.3 15.9 6.3 6.9 18.3 17.3 9.1
Longitudinal Velocity 13.2 22.2 24.3 23.3 33.7 32.2 65.5 31.2
Longitudinal Displacement 18.6 31.8 25.6 18.1 37.2 34.9 43.9 75.6
Radial Velocity 2.4 6.2 5.2 5.1 5.0 4.5 6.2 7.3
Radial Displacement 2.7 4.3 7.5 4.3 6.4 4.5 7.5 5.7
  1. CMR indicates cardiac magnetic resonance; FT, feature tracking.