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Table 5 Multivariable analysis of the phase analysis parameters

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

Variable OR LCL UCL p value
Derivation cohort—clinical/imaging variablesa alone
Clinical/imaging variables 1.326 1.132 1.552 0.0005
Derivation cohort—clinical/imaging variablesa + entropy
Clinical/imaging variables 1.322 1.121 1.559 < 0.0001
Entropy (≥ 59%) 5.244 2.856 9.629 0.0009
Derivation cohort—clinical/cmaging variablesa + phase histogram bandwidth
Clinical/imaging variables 1.370 1.162 1.615 < 0.0001
Phase histogram bandwidth (≥ 78°) 4.186 2.386 7.345 0.0002
Derivation cohort—clinical/imaging variablesa + phase standard deviation
Clinical/imaging variables 1.331 1.133 1.563 0.0006
Phase standard deviation (≥ 26.7 °) 3.084 1.619 5.875 0.0005
  1. Abbreviations: LCL lower confidence interval, OR odds ratio, UCL upper confidence interval
  2. aSee methodology section for discussion of chosen clinical/imaging variables to include in model