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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