From: Myocardial perfusion imaging by single-photon emission tomography (MPI SPECT) versus Instantaneous wave-free ratio (IFR) for assessment of functional significance of intermediate coronary artery lesions
Parameters
Values
FFR value
 Mean ± SD
0.796 ± 0.1007
 Range(min-max)
(0.60–0.96)
 Median
0.83
FFR results no. (%):
 Positive
22(44)
 Negative
28(56)