Table 3

Area under the curve (AUC) of M1–M6 on the symptomatic side to diagnose significant trans-stenotic pressure gradient

MethodAUC (95% CI)YICut-off valueSensitivitySpecificity
M10.81 (0.73 to 0.90)0.560.370.980.58
M20.86 (0.78 to 0.93)0.630.230.860.76
M30.68 (0.58 to 0.79)0.360.340.800.56
M40.69 (0.59 to 0.80)0.370.260.770.60
M50.64 (0.54 to 0.75)0.260.190.320.95
M60.72 (0.62 to 0.82)0.380.310.910.47
  • YI, Youden Index .