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Table 3 Speckle tracking measurements

From: Two-dimensional speckle tracking for the assessment of coronary artery disease during dobutamine stress echo: clinical tool or merely research method

  CAD (+) CAD (−) P-value
Global longitudinal peak systolic strain (%)
   Rest −21.16 ± 3.32 −21.59 ± 2.33 0.46
   Peak dose −18.95 ± 4.34 −23.16 ± 3.30 <0.001
   Delta −2.23 ± 3.36 1.56 ± 3.15 <0.001
Global torsion (o)
   Rest 21.77 ± 5.47 21.27 ± 7.61 0.790
   Peak dose 19.65 ± 13.57 30.76 ± 12.03 0.002
   Delta −2.42 ± 13.96 9.50 ± 10.46 0.001
Base rotation (o)
   Rest −9.28 ± 2.87 −9.74 ± 2.98 0.560
   Peak dose −8.76 ± 5.28 −12.60 ± 4.63 0.006
   Delta −0.52 ± 6.24 2.84 ± 3.61 0.012
Apex rotation (o)
   Rest 14.03 ± 4.02 14.57 ± 5.62 0.692
   Peak dose 13.13 ± 9.29 21.39 ± 8.84 0.001
   Delta −0.90 ± 8.88 6.76 ± 8.69 0.002