Table 3 Layer-specific segmental strains and strain gradient according to the viability in akinetic or dyskinetic segments at baseline and follow-up study.

From: Transmural difference in myocardial damage assessed by layer-specific strain analysis in patients with ST elevation myocardial infarction

 

Baseline study

Follow-up study

Viable segments (65)

Non-viable segments (47)

p-value*

Viable segments (65)

Non-viable segments (47)

p-value*

LSendo (%)

− 3.48 ± 7.39

1.60 ± 5.77

0.001

− 15.25 ± 6.04

− 8.42 ± 6.00

< 0.001

LSmyo (%)

− 1.92 ± 5.95

1.32 ± 4.79

0.011

− 11.72 ± 4.53

− 6.67 ± 5.01

< 0.001

LSepi (%)

− 1.22 ± 5.23

1.06 ± 4.43

0.043

− 9.45 ± 4.07

− 5.46 ± 4.59

< 0.001

Strain gradient (%)

− 2.26 ± 3.63

0.53 ± 2.56

< 0.001

− 5.80 ± 4.40

− 2.96 ± 3.16

< 0.001

  1. LSendo segmental strain of endocardium, LSmyo segmental strain of myocardium, LSepi segmental strain of epicardium.
  2. *Significance evaluation using linear mixed model for the influence of viability on strain parameters.
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