The Coronary Angiography-Derived Index of Microcirculatory Resistance Predicts Left Ventricular Performance Recovery in Patients with ST-Segment Elevation Myocardial Infarction

Table 3

Measures of microvascular function in patients with and without left ventricular recovery at 3 months.

Variable	Recovery (n = 41)	No recovery (n = 39)	value
TIMI flow grade 3	39 (95.1%)	35 (89.7%)	0.625
cTFC	20.2 ± 11.7	26.0 ± 13.7	0.045
caFFR	0.92 (0.90–0.945)	0.93 (0.88–0.93)	0.227
caIMR	38.3 ± 15.5	48.4 ± 15.2	0.004

TIMI, thrombolysis in myocardial infarction; cTFC, corrected thrombolysis in myocardial infarction frame count; caFFR, coronary angiography-derived fractional flow reserve; caIMR, coronary angiography-derived index of microcirculatory resistance.