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Table 2 Reproducibility of visual and three quantitative methods (mean percentage difference)

From: Quantitative approach using multiple single parameters versus visual assessment in dobutamine stress echocardiography

  Visual PW-DMI CC-DMI STI
  WMSI velocities velocities strain strain rate velocities strain strain rate
Interobserver 0.035 0.059 0.038 0.036 0.007 0.031 0.077 0.009
Intraobserver 0.028 0.091 0.004 0.116 0.016 0.037 0.109 0.016
  1. PW-DMI = pulsed wave Doppler myocardial imaging; CC-DMI = color coded Doppler myocardial imaging; STI = speckle tracking imaging; WMSI = wall motion score index.