INS and metabolic syndrome: Univariate correlations showed that myocardial glucose metabolism was negatively correlated with the presence of MetS (r = −0.743, P < 0.0001), waist circumference (r = −0.526; P =0.001), sBP (r = −0.520; P = 0.001), FPG (r = −0.356; P = 0.01), HbA1c (r = −0.673; P < 0.0001), triglycerides (r = −0.458; P = 0.006), and positively correlated with insulin-stimulated glucose disposal (r = 0.488, P = 0.003) (Figure 2).