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Table 4 Derivation cohort—phase variables sensitivity and specificity

From: Phase analysis single-photon emission computed tomography (SPECT) myocardial perfusion imaging (MPI) detects dyssynchrony in myocardial scar and increases specificity of MPI

Variable Sensitivity (N) (N = 235) Specificity (N = 105) AUC
Entropy ≥ 59% 35.2 (37/105) 90.6 (213/235) 0.629
Phase histogram bandwidth ≥ 78° 38.1 (40/105) 85.6 (202/235) 0.620
Phase standard deviation ≥ 26.7° 23.8 (25/105) 90.6 (213/235) 0.572
  1. Abbreviations: AUC area under the curve