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

Table 2 Correlation between CFR and parameters of LV function and perfusion

Parameters of LV function and perfusion	Correlation coefficient (r)
72 hours after the reperfusion
TPD at stress (%)	-0.492**
TPD at rest (%)	-0.541**
LVEF (%) (3D)	0.267
LV ESV (ml) (3D)	-0.219
LV EDV (ml) (3D)	-0.314*
WMSI at rest	-0.295
WMSI LDDE	-0.552**
At 5 months follow-up
CFR	0.505**
TPD at stress (%)	-0.636**
TPD at rest (%)	-0.620**
LVEF (%) (3D)	0.373*
LV ESV (ml) (3D)	-0.363*
LV EDV (ml) (3D)	-0.349*
WMSI at rest	-0.567**
WMSI LDDE	-0.671**
Contractile reserve (difference ≥ 0.25 of WMSI)
WMSI at rest (AMI) - WMSI at rest (at follow-up)	0.559**
WMSI at rest (AMI) - WMSI LDDE (AMI)	0.626**
WMSI at rest (AMI) - WMSI LDDE (at follow-up)	0.680**

*p < 0.05; **p < 0.001
CFR - coronary flow reserve; LV- left ventricular; LVEF - left ventricular ejection fraction; LV ESV - left ventricular end-systolic volume; LV EDV - left ventricular end-diastolic volume; 3D - three-dimensional echocardiography; WMSI - wall motion score index; WMSI LDDE - wall motion score index at low-dose dobutamine echocardiography; WMSI at rest - WMSI LDDE - difference ≥ 0.25 between WMSI at rest and WMSI at LDDE indicates the presence of contractile reserve; WMSI at rest (AMI) - WMSI at rest (at follow-up) - difference of WMSI ≥ 0.25 indicates the myocardial viability; TPD% - total perfusion defect (%)

ISSN: 1476-7120