Figure 2From: Myocardial tissue Doppler echocardiography and N-terminal B-type natriuretic peptide (NT-proBNP) in diastolic and systolic heart failure Receiver Operating Characteristic curve to evaluate the diagnostic accuracy of NT-proBNP to separate patients with diastolic and/or systolic dysfunction (n = 95) from healthy controls (n = 42). The area under the curve (AUC) = 0.763 (p < 0.0001), Youden index = 0.44. The optimal cut-off is 97 pg/ml.Back to article page