Figure 2
From: Quantitative non-contrast T1 mapping of left ventricle in children and young adults
Receiver-operating characteristic (ROC) curve to determine threshold value of T1 relaxation time of left ventricular myocardium. Threshold of non-contrast T1 value to differentiate normal patients from patients with cardiomyopathy was calculated using ROC curve. Cut-off value of 1005 ms yielded sensitivity of 80% and specificity of 83% with area under curve (AUC) of 0.84 ± 0.03 (p < 0.001).