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Table 4 The relationship between CFR, the final infarct size (TPD) and myocardial viability at follow-up

From: Non-invasive evaluation of myocardial reperfusion by transthoracic Doppler echocardiography and single-photon emission computed tomography in patients with anterior acute myocardial infarction

   TPD
yes
≤15%
no
Positive predictive value Negative predictive value Sensitivity Specificity
CFR ≥ yes 17 2 0,89 0,80 0,77 0,91
1.75 no 5 20     
   Myocardial viability     
   yes no     
CFR ≥ yes 10 9 0,52 0,92 0,83 0,72
1.75 no 2 23     
   Myocardial viability     
   yes no     
TPD ≤ yes 11 11 0,50 0,95 0,92 0,66
15% no 1 21     
  1. CFR - coronary flow reserve; TPD - total perfusion defect; the difference between WMSI (at rest) during AMI and WMSI (at rest) at follow-up ≥ 0.25 indicates the myocardial viability