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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