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Table 2 The parameters of each of 6 segments derived from 2DSE in 17 rats at baseline and 4-weeks post-infarction

From: Value of segmental myocardial strain by 2-dimensional strain echocardiography for assessment of scar area induced in a rat model of myocardial infarction

Parameters

 

Infarct area

 

Peri-infarct area

Remote area

  

Anteroseptum

Anterior

Anterolateral

Inferoseptum

Inferolateral

Inferior

SR/%#â–²

Baseline

32.29 ± 9.55

32.90 ± 8.79

33.92 ± 10.03

35.27 ± 11.06

37.58 ± 9.35

37.98 ± 9.84

 

4-weeks

11.60 ± 4.02*

11.18 ± 3.89*

21.85 ± 7.96*

22.75 ± 4.78*

31.72 ± 8.78

31.51 ± 6.55*

SrR/s-1

Baseline

6.55 ± 1.18

6.28 ± 1.35

6.72 ± 1.20

7.38 ± 1.70

7.72 ± 1.27

7.79 ± 1.33

 

4-weeks

3.66 ± 1.01*

3.18 ± 0.47*

4.24 ± 0.77*

4.31 ± 1.51*

4.64 ± 1.06*

4.75 ± 1.33*

SC/%#â–²

Baseline

-14.12 ± 2.94

-14.46 ± 2.21

-12.69 ± 2.44

-14.77 ± 3.43

-11.95 ± 2.55

-14.42 ± 3.15

 

4-weeks

-7.46 ± 1.39*

-6.30 ± 2.17*

-10.01 ± 2.15*

-11.35 ± 3.16*

-10.61 ± 2.05

-12.97 ± 3.31

SrC/s-1 #â–²

Baseline

4.44 ± 0.63

4.9 ± 0.95

4.19 ± 0.82

4.69 ± 0.88

4.28 ± 0.58

4.79 ± 1.07

 

4-weeks

3.52 ± 1.08*

2.59 ± 1.16*

3.10 ± 0.67*

3.82 ± 1.21*

3.19 ± 0.36*

3.93 ± 0.54*

  1. SR, Radial strain; SrR, Radial strain rate; SC, Circumferential strain; SrC, Circumferential strain rate
  2. *4-weeks vs Baseline, P < 0.05; # Infarct area vs Peri-infarct area, P < 0.05; â–²Infarct area vs Remote area