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Table 4 Diagnostic efficacy of LGE percentage and GPCS strain with respect to NIDCM combined with VAs

From: Identification of patients with nonischemic dilated cardiomyopathy at risk of malignant ventricular arrhythmias: insights from cardiac magnetic resonance feature tracking

Variable

AUC

Optimal cut off

95%CI

Sensitivity (%)

Specificity (%)

PPV (%)

NPV (%)

LGE percent (%)

0.86

10.37

0.79–0.93

78.1%

83.0%

81.3%

80.5%

GPCS (%)

0.83

−13.19

0.75–0.92

76.4%

87.8%

84.2%

78.3%

LGE percent (%) + GPCS

0.91

—

0.86–0.97

81.0%

92.5%

90.4%

83.5%

  1. LGE, late gadolinium enhancement; %LGE, LGE (+) mass as percentage of left ventricular myocardial mass; GPCS, global peak circumferential strain; PPV, positive predictive value; NPV, negative predictive value