Table 2

Comparison Among Pseudotransient and Steady vFFR Methods Relative to Measured Translesional Pressure Ratio Values

NErrorBiasMax Error Range
All cases
 Pseudotransient730.0070 ± 0.0045−0.0051 ± 0.0065−0.018 to +0.013
 Steady730.0044 ± 0.0044−6e−4 ± 0.0062−0.011 to +0.022
FFR <0.90
 Pseudotransient370.0094 ± 0.0038−0.0080 ± 0.0063−0.018 to +0.013
 Steady370.0050 ± 0.0049−9.7e−5 ± 0.0070−0.011 to +0.022
FFR 0.70–0.90
 Pseudotransient290.0098 ± 0.0037−0.0090 ± 0.055−0.018 to +0.013
 Steady290.0048 ± 0.0045−3.1e−4 ± 0.0067−0.011 to +0.022

Values are mean ± SD unless otherwise indicated.

vFFR = virtual fractional flow reserve.

  • Indicates worst underestimation to worst overestimation.