Fig. 1: Sensitivity of different cut-off values of cardiac troponin I (cTnI) over time; 0.07 mg/L = 99th percentile, 0.1 mg/L = 10% coefficient of variation, 0.4 mg/L = receiver operating characteristic (ROC) curve. Reprinted, with permission, from Eggers KM, Oldgren J, Nordenskjold A, et al. Diagnostic value of serial measurement of cardiac markers in patients with chest pain: limited value of adding myoglobin to troponin I for exclusion of myocardial infarction. Am Heart J 2004;148:574-81.