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Table 2 Correlation of SWT scores with CMR findings and infarcted segments in echo

From: Comparison of wall thickening and ejection fraction by cardiovascular magnetic resonance and echocardiography in acute myocardial infarction

Baseline Follow-up
SWT Number of infarcted segments
in echo
EF
Echo
EF
CMR
Infarct mass in grams Number of infarcted segments
in echo
EF
Echo
EF
CMR
Infarct mass in grams
< 20% 0.446 0.434 0.714 0.604 0.380 0.360 0.505 0.440
< 30% 0.498 0.449 0.744 0.591 0.474 0.382 0.561 0.545
< 40% 0.406 0.377 0.742 0.525 0.488 0.431 0.584 0.544
< 50% 0.316 0.364 0.762 0.475 0.533 0.448 0.597 0.513
< 60% n.s. 0.386 0.737 0.369 0.555 0.470 0.633 0.500
  1. Table 2 shows the correlation of different SWT (systolic wall thickening) scores, markers of regional wall motion abnormality, with the number of infarcted segments in echo (assessed visually, > 50% hypokinetic), late enhancement in CMR and EF in echo and CMR, in all values (p < 0.001). The best correlation of infarcted segments in echo and SWT in CMR is found at a SWT less then 30%. SWT < 30% correlates also highly significant with EFCMR and EFecho. Through this correlation we were able to describe a cut-off value of less than 30% SWT to define an infarcted segment in CMR with influence on the left ventricular function. Spearman test was used for linear correlations of the selected variables. n.s = not significant.